Juniper Networks G10 CMTSCMTS can be found in the documents listed in “G10 CMTS Document Set” on page xi. Organization Juniper Networks G10 CMTS Getting Started is organized as

Juniper Networks, Inc.

1194 North Mathilda Avenue

Sunnyvale, CA 94089

USA

408-745-2000

www.juniper.net

Part Number: 530-008005-01, Revision 1

Juniper NetworksG10 CMTS

Getting Started

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ii

Copyright © 2002, Juniper Networks, Inc. All rights reserved. Juniper Networks is registered in the U.S. Patent and Trademark Office and in other countries as a trademark of Juniper Networks, Inc. Broadband Cable Processor, G10, Internet Processor, JUNOS, JUNOScript, M5, M10, M20, M40, M40e, M-series, M160, ServiceGuard, T640, and T-series are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners. All specifications are subject to change without notice.

Products made or sold by Juniper Networks (including the M5, M10, M20, M40, M40e, and M160 routers, T640 routing node, and the JUNOS software) or components thereof might be covered by one or more of the following patents that are owned by or licensed to Juniper Networks: U.S. Patent Nos. 5,473,599, 5,905,725, and 5909,440.

Juniper Networks G10 CMTS Getting StartedCopyright © 2002, Juniper Networks, Inc.All rights reserved. Printed in USA.

Writer: Jerry IsaacIllustrations: Paul GilmanCovers and template design: Edmonds Design

Revision History17 June 2002—First Edition.

Juniper Networks assumes no responsibility for any inaccuracies in this document. Juniper Networks reserves the right to change, modify, transfer, or otherwise revise this publication without notice.

The DOCSIS Module performs encryption that is subject to U.S. Customs and Export regulations. A DOCSIS Module shall not be exported, sold or transferred to a country outside the USA and Canada without an appropriate export license from the U.S. Government. The specific Regulations governing exports of encryption products are set forth in the Export Administration Regulations, 15 C.F.R. (Code of Federal Regulations), Parts 730-774.

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Table of Contents iii

Table of ContentsAbout This Manual

Purpose .................................................................................................................ixOrganization ..........................................................................................................ixDocument Conventions ..........................................................................................x

Notes, Cautions, and Warnings........................................................................xG10 CMTS Document Set.......................................................................................xi

Chapter 1G10 CMTS Hardware Overview ........................................................................1

Chapter 2G10 CMTS Installation ..........................................................................................9

Tools and Equipment Required for Installation .......................................................9Installation Preparation.........................................................................................10Notices..................................................................................................................11Rack Mounting......................................................................................................12Installing Power Supplies ......................................................................................14Installing a Front-Loaded Module ..........................................................................17Installing a Rear-Loaded Module ...........................................................................19Cabling an HFC Connector Module .......................................................................21Cabling a Chassis Control Module .........................................................................23Cabling a NIC Module ...........................................................................................25Cabling a NIC Access Module ................................................................................28Attaching a PC to the Chassis Control Module.......................................................31Connecting to Power Sources ...............................................................................32

AC Power.......................................................................................................32DC Power ......................................................................................................33

Chapter 3G10 CMTS Configuration ...................................................................................35

Powering On the G10 CMTS .................................................................................35Powering On and Configuring the PC ...................................................................39

Logging In and Out of the G10 CMTS.............................................................39Configuring the G10 CMTS....................................................................................40

Cable Interface Assignment ...........................................................................40Creating Usernames and Passwords ..............................................................42

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Juniper Networks G10 CMTS Getting Startediv

Configuring Miscellaneous Parameters ..........................................................42Viewing and Saving Running Configuration...................................................42Configuring Downstream Channel Parameters ..............................................43Configuring Upstream Channel Parameters...................................................44Configuring Fast Ethernet Interfaces .............................................................45Configuring Gigabit Ethernet Interfaces .........................................................45Configuring a Management Interface.............................................................46

IndexIndex ..............................................................................................................................47

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List of Figures v

List of FiguresList of Figures

Figure 1: Front View of Fully-Configured Chassis ................................................2Figure 2: Front View of Partially-Configured Chassis............................................3Figure 3: Rear View of Fully-Configured Chassis ..................................................4Figure 4: Rear View of Partially-Configured Chassis.............................................5Figure 5: Top View of Chassis Midplane ..............................................................6Figure 6: Bottom of Chassis ...............................................................................13Figure 7: Front and Rear Views of Midplane ......................................................16Figure 8: Power Supply Installation ...................................................................17Figure 9: Front-Loaded Module Installation .......................................................19Figure 10: Rear-Loaded Module Installation ........................................................20Figure 11: Example of Allocation of Multiple Channels Per Port ..........................21Figure 12: HFC Connector Module Rear Panel .....................................................22Figure 13: Chassis Control Module and CCM Access Module Front Panels ...........24Figure 14: NIC Module and NIC Access Module Panels ........................................26Figure 15: NIC Module Cabling – Front View .......................................................27Figure 16: NIC Access Module Cable Connections ...............................................30Figure 17: AC Power Cord and Retainer Clip .......................................................33Figure 18: DC Power Transition Module ..............................................................34Figure 19: DOCSIS Module and Chassis Control Module Front Panels..................37Figure 20: NIC Module and NIC Access Module Panels ........................................38

List of Figures

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Juniper Networks G10 CMTS Getting Startedvi

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List of Tables vii

List of TablesList of Tables

Table 1: Power Supply Guideline ......................................................................18Table 2: NIC Access Module Wiring Plan ..........................................................31Table 3: Downstream Channel Assignment......................................................41Table 4: Upstream Channel Assignment (8-Channel DOCSIS Module) ..............41Table 5: Upstream Channel Assignment (16-Channel DOCSIS Module) ............41Table 6: Downstream Channel Parameter Ranges............................................43Table 7: Upstream Channel Parameter Ranges.................................................44

List of Tables

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Juniper Networks G10 CMTS Getting Startedviii

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About This Manual ix

About This Manual

This section describes important information about the design of this document.

Purpose

The purpose of the Juniper Networks G10 CMTS Getting Started manual is to provide experienced personnel the procedures required to properly install and configure the G10 Cable Modem Termination System (CMTS).

If you do not have experience with the installation and configuration of CMTS equipment in cable headends, or if you need more details regarding the installation, configuration, or upgrading of the G10 CMTS, then it is recommended that you follow the procedures provided in the companion manual Juniper Networks G10 CMTS Installation and Configuration for more detailed information.

Additional instructions and details regarding the subsequent and on-going operation of the CMTS can be found in the documents listed in “G10 CMTS Document Set” on page xi.

Organization

Juniper Networks G10 CMTS Getting Started is organized as follows:

Chapter 1, “G10 CMTS Hardware Overview” – Provides a hardware overview of the G10 CMTS.

Chapter 2, “G10 CMTS Installation” – Provides the procedures that must be followed to install the G10 CMTS in the headend.

Chapter 3, “G10 CMTS Configuration” – Describes the configuration procedure for the G10 CMTS.

Document Conventions

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Juniper Networks G10 CMTS Getting Startedx

Document Conventions

The following document conventions are used in this manual:

Notes, Cautions, and Warnings

GeneralConventions

Italic font Denotes a) emphasis, b) first use of a new term, or c) a document title.

Screen Name font Denotes a) the on-screen name of a window, dialog box or field, or b) keys on a keyboard.

Software Conventions

Computer font Font denotes code or messages displayed on-screen.

Computer Bold font Font denotes literal commands and parameters that you enter exactly as shown.

<Computer Italic> font Font denotes parameter values that require a user-defined input.

The value strings are enclosed in angle brackets <...>.

[parameter] Square brackets denote optional parameters.

{parameter} Braces denote required parameters.

| Vertical bars separate parameters in a group from which you must choose only one.

↵ Return symbol indicates pressing the Enter key at the end of a command line.

A note indicates information that might be helpful in a particular situation, or information that might otherwise be overlooked.

A caution indicates a situation that requires careful attention. Failure to observe a cautionary note could result in injury or discomfort to yourself, or serious damage to the product.

A warning is intended to alert the user of the presence of uninsulated dangerous voltage within the product’s enclosure that may present a risk of electric shock.

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About This Manual xi

G10 CMTS Document Set


Pre-InstallationGuide

Installation andConfiguration

Getting Started FunctionalDescription

SNMP and Enterprise MIBSpecification

PREPARATION OPERATION REFERENCE

Operation andMaintenance

CLI Reference

530-008003-01

530-008006-01

530-008008-01530-008004-01530-008002-01

530-008007-01530-008005-01


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Juniper Networks G10 CMTS Getting Startedxii

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G10 CMTS Hardware Overview 1

Chapter 1G10 CMTS Hardware Overview

This chapter provides an overview of the modules and various hardware components of the G10 Cable Modem Termination System (CMTS), and where they reside within the chassis. This overview presents material that is specific to the installation and configuration of the G10 CMTS. For more details and specifications regarding these assemblies, refer to the Juniper Networks G10 CMTS Functional Description.

Figure 1 on page 2 illustrates a front view of a fully-configured chassis. Figure 2 on page 3 illustrates a front view of a partially-configured chassis in which DOCSIS Modules, a Chassis Control Module (CCM), a Network Interface Card (NIC) Module, power supplies, air management modules, and power supply filler panels have been removed. Figure 3 on page 4 illustrates a rear view of a fully-configured chassis. Figure 4 on page 5 illustrates the rear view of the partially-configured chassis in which HFC Connector Modules, a CCM Access Module, a NIC Access Module, and air management panels have been removed. Figure 5 on page 6 provides a top view of the chassis midplane showing the slot enumeration and location of each module.

All of the features of the chassis that are cited in these figures will be referenced in one or more procedures described in this document.

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Juniper Networks G10 CMTS Getting Started2

Figure 1: Front View of Fully-Configured Chassis

Power

FaultPower

FaultPower

FaultPower

FaultPower

Fault

Power

FaultPower

FaultPower

Fault

Front FanTray LED

ESDStrapJack

AirIntake

Eth0

12

Eth0

12

Front FanTray LED

DOCSISModule

NICModule

ChassisControlModule

CableGuide

PowerSupplyEjector

Rail

ModuleEjector

Rail

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Figure 2: Front View of Partially-Configured Chassis

Power

Fault

Power

Fault

Power

Fault

Power

Fault

Power

Fault

Power

Fault

Power

Fault

ESDStrapJack

PowerSupplyBay

PowerSupplyFillerPanel

PowerSupply

Midplane

AirManagement

Module

PowerSupply

Faceplate

CardGuide

AirIntake

Faceplate

PowerSupplyFaceplateClip

PowerPowerFaultFault

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Figure 3: Rear View of Fully-Configured Chassis

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

EX

T FA

ULT

INT

FAU

LTO

PE

RA

TIO

NA

LP

OW

ER

EX

T FA

ULT

INT

FAU

LTO

PE

RA

TIO

NA

LP

OW

ER

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth1

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth0

1

2

Eth1

US 3

US 2

US 1

US

DS 3

DS 2

DS 1

DS 0

Eth0

0

1

2

1

2

Eth0

Eth1

COM

Eth0

Eth1

COM

Rear Fan Tray

Cable Channel

AC PowerReceptacle

AC PowerTransitionModule

AC PowerSwitch

Air Exhaust

Rear FanTray LED

ChassisGround

Nuts

AirIntake

HFCConnector

Module

CCMAccessModule

NICAccessModule

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Figure 4: Rear View of Partially-Configured Chassis

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

EX

T FA

ULT

INT

FAU

LTO

PE

RA

TIO

NA

LP

OW

ER

1

2

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

AirManagement

Panel

COM

Eth0

Eth1

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Figure 5: Top View of Chassis Midplane

Following is a brief explanation of each feature referenced in Figure 1 through Figure 4:

DOCSIS Module—Module that contains the Broadband Cable Processor ASIC and resides between the Network Side Interface (NSI) and the Hybrid Fiber/Coax (HFC) interface

NIC Module—Module that provides the Gigabit Ethernet interface and the Fast Ethernet switching functions for the network side interface

Chassis Control Module—Module that performs management and monitoring functions

Module slots 1 through 6 reside in Domain A. Module slots 7, and 9 through 13 reside in Domain B.

DOCSIS Module

DOCSIS Module

DOCSIS Module

DOCSIS Module

DOCSIS Module

DOCSIS Module

DOCSIS Module

DOCSIS Module

NIC Module

Chassis Control Module

Chassis Control Module

HFC Connector Module








Midplane

Fro

ntR

ear

NIC Access Module 5

6

4

3

2

1

7

8

9

10

11

12

13

with logical slot numbers

NIC Module

NIC Access Module

CCM Access Module

CCM Access Module

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Module Ejector Rail—Rail into which a module’s ejector tabs mate when a module is installed into a slot

ESD Strap Jack—Location in front of chassis where ESD ground strap can be plugged

Chassis Ground Nuts—Location where the earth ground connection to the chassis is made

Air Intake—Slotted openings along the front (removable) and sides of the chassis where air is drawn into the chassis for cooling the installed modules and power supplies

Air Intake Faceplate—Slotted removable panel that covers up the two front fan trays

Air Intake Faceplate Clip—Retainer clip used to mount the air intake faceplate

Front Fan Tray—Fan assembly that forces air upward through the front of the chassis

Front Fan Tray LED—LED that represents the status of the front fan tray

Power Supply Ejector Rail—Rail into which the power supply ejector tabs mate when a power supply is installed into a bay

Midplane—Passive electrical interconnecting device for all modules in the chassis

Air Management Module—Module that is installed into an unused module slot to redirect the air flow through the chassis

Card Guide—Used to align a module or power supply while it is being inserted into its slot or bay, respectively

Power Supply—Converts AC or DC power supplied through the power transition modules into the DC voltages required by the modules

Power Supply Faceplate—Panel that runs along the top of the chassis that covers up the power supplies

Power Supply Faceplate Clip—Retainer clip used to mount the power supply faceplate

Power Supply Bay—Chassis bay in which a single hot-swappable power supply is inserted

Power Supply Filler Panel—Panel covering an empty power supply bay

Cable Channel—Channel that runs through the top of the chassis that is used to route the network cables from the rear of the chassis to the front of the chassis

Cable Guide—Guide in the front of the chassis used to route the network cables between the cable channel and the lower opening in the power supply faceplate

HFC Connector Module—Module that functions as the DOCSIS Module’s physical access to both the NSI and the HFC interfaces on the rear of the chassis

NIC Access Module—Module that provides the network connections between the NIC Modules and the HFC Connector Modules

CCM Access Module—Module that provides Ethernet and serial connector access to the Chassis Control Module from the rear of the chassis

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Rear Fan Tray—Fan assembly that forces air upward through the rear of the chassis

Rear Fan Tray LED—LED that represents the status of the rear fan tray

Air Management Panel—Panel that is installed over an unused module slot to redirect the air flow through the chassis

Air Exhaust—Panel along the top and rear of the chassis where air is exhausted out of the chassis for cooling purposes

AC Power Transition Module—Rear module that distributes the externally-supplied AC power to the midplane

AC Power Receptacle—AC power cord receptacle on AC Power Transition Module

AC Power Switch—AC power ON/OFF switch that resides on the AC Power Transition Module

DC Power Transition Module—Rear module that distributes the externally-supplied DC power to the midplane

DC Power Receptacle—DC power cord terminal block on DC Power Transition Module

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G10 CMTS Installation 9

Chapter 2G10 CMTS Installation

This chapter describes the installation procedure for the G10 CMTS. It is recommended that the entire installation process in this chapter be read prior to performing the actual G10 CMTS installation.

Tools and Equipment Required for Installation

The following tools are needed to install power supplies and modules, and to rack mount the G10 CMTS chassis:

M2.5 Phillips torque screwdriver

M2.5 flathead torque screwdriver

M3 Phillips torque screwdriver

M5 Phillips torque screwdriver

#10 Phillips torque screwdriver

#10 flathead torque screwdriver

#12 Phillips torque screwdriver

7/16 in. torque wrench

22-10 AWG crimper/cutter/stripper

In addition, the following supplies may be required:

RF cables and adapters

Ethernet cables with RJ-45 connectors

The following equipment is required to configure the G10 CMTS and verify that the RF system has been setup properly:

PC with asynchronous terminal emulation

RF spectrum analyzer

RF power meter

Installation Preparation

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Installation Preparation

1. Ensure that the procedures and the checklist provided in the Juniper Networks G10 CMTS Pre-Installation Guide have been successfully completed and approved by the user and Juniper Networks field engineers.

2. Ensure that all safety precautions and procedures described in the Juniper Networks G10 CMTS Installation and Configuration manual have been followed prior to performing the procedures presented in this chapter.

3. Verify that the contents of the shipping cartons and accessory kits are identical to the contents listed on their corresponding packing lists.

4. Install the power supply faceplate included in the shipment by aligning its four ball studs with the four power supply faceplate clips and pressing the faceplate towards the chassis until it snaps into place.

5. Install the air intake faceplate included in the shipment by aligning its four ball studs with the four air intake faceplate clips and pressing the faceplate towards the chassis until it snaps into place.

High levels of electrical energy are distributed across the system midplane. Be careful not to contact the midplane connectors, or any component connected to the midplane, with any metallic object while hot-swapping or servicing components installed in the system.

The power supply faceplate must always be installed prior to powering on the G10 CMTS to ensure that proper air ventilation occurs throughout the chassis.

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G10 CMTS Installation

Notices

11

Notices

This equipment is intended only for installation in a restricted access location within a building.

This equipment is intended for indoor use only.

This equipment does not have a direct copper connection to the outside plant.

Removal of power supplies or cards will result in access to hazardous energy.

Each power cord must be connected to an independent branch circuit.

Product connected to two power sources. Disconnect both power sources before servicing.

Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries according to the instructions.

This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Rack Mounting.

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Rack Mounting.

1. The G10 CMTS accessory kit contains a two-ring lug connector that must be crimped to the earth ground strap.

2. Using the two supplied #10 hex bolts, attach the two-ring lug connector of the ground strap to the chassis using 20 in lb of torque on each bolt. Figure 3 on page 4 shows the location of the chassis ground nuts on the chassis.

3. Ensure that proper clearance is maintained between the G10 CMTS chassis and its surroundings to allow adequate air ventilation to flow into the air intakes and out of the air exhaust:

A minimum of 3 feet (0.91 m) between the front of the chassis and any other object

A minimum of 2 feet (0.61 m) between the rear of the chassis and any other object

A minimum of 3 inches between each side of the chassis and any other object

4. It is recommended that an equipment shelf be installed into the rack that can support the maximum weight (140 lb, or 64 kg) and dimensions of the chassis. The chassis dimensions, when viewed from the bottom, are provided in Figure 6.

The G10 CMTS chassis must be rack mounted prior to the installation of any additional power supplies or modules.

Never power on the G10 CMTS without first grounding the chassis.

The G10 CMTS does not require any clearance between the bottom of the chassis and the floor. Similarly, there are no clearance requirements between the top of the chassis and the bottom of another G10 CMTS stacked above it on the same rack.

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Rack Mounting.

13

Figure 6: Bottom of Chassis

5. If the chassis will be front-rack mounted, proceed to Step 7. If the chassis will be mid-rack mounted, proceed to Step 6.

6. Remove the seven screws fastening the mounting brackets to the front of the chassis, align the brackets with the corresponding hole patterns in the center of the chassis, and insert the seven screws into the chassis. Apply 20 in lb of torque to each of the seven screws.

7. Using at least three installers, slowly lift and slide the G10 CMTS onto the equipment shelf until the flanges of the mounting brackets are flush with the mounting rails of the rack, and the mounting holes in the mounting brackets are aligned with the corresponding holes in the mounting rails.

8. Using the twelve #12 screws supplied in the accessory kit (six for each mounting bracket), fasten the chassis to the rack by applying 30 in lb of torque to each of the 12 screws.

9. Attach the ground strap to earth ground.

At this point, the installation of any additional power supplies or modules can be installed in the chassis as described in “Installing Power Supplies” on page 14 through “Installing a Rear-Loaded Module” on page 19.

17.3 in (439.4 mm)

Front

18.6

in (

472.

6 m

m)

Do not use the handles on the rear fan tray to assist with lifting the G10 CMTS. These handles are solely for the purpose of removing the rear fan tray.

Installing Power Supplies

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1. The power supply faceplate must be removed by pulling the flanges on each side of the faceplate away from the chassis until the faceplate ball studs are removed from the power supply faceplate clips.

2. Decide the bay in which the power supply will be inserted. As described in the Juniper Networks G10 CMTS Functional Description, the midplane is partitioned into two domains—Domain A (slots 1—6) and Domain B (slots 7, 9—13). The AC power supplies in each domain are supplied from the power source connected to that domain’s AC power transition module. However, the DC outputs of all ten power supplies in both domains are interconnected along the midplane. Therefore, if power source redundancy is not a consideration, adding an AC power supply to either domain will supply additional power to all of the modules in the chassis. However, if power source redundancy is desired, the addition of an AC power supply in one domain must be accompanied with the addition of an AC power supply in the other domain. Within a domain, a power supply can be installed in any of the available five bays. Figure 7 on page 16 illustrates the two power supply domains.

Unlike the AC configuration, the DC power transition modules do not operate independently. Each DC power transition module supports the power supplies in both domains of the chassis. Therefore, power supply redundancy is independent of the domain in which a power supply is installed.

3. Remove the power supply filler panel covering the selected bay by loosening the two self-contained screws.

4. If the power supply’s ejector is locked in the vertical position, press down on the ejector release while simultaneously pulling the ejector away from the power supply. The ejector should rest at approximately 45° from the faceplate.

5. Align the printed circuit board of the power supply with the bay card guides and slowly slide the power supply into the bay until it comes to a stop with the inside tabs of the ejector (tabs closest to midplane) resting over the power supply ejector rail (refer to Figure 8 on page 17).

6. Firmly lift the ejector to the vertical position until the ejector release clicks into position.

7. Tighten the upper and lower retainer screws by applying 3 in lb of torque to each screw.

Before installing a power supply or any module into the G10 CMTS, attach one end of an ESD ground strap to your wrist and attach the other end to the ESD strap jack on the front of the chassis (refer to Figure 2 on page 3).

The power supplies and the chassis are mechanically keyed to ensure that same-type supplies and chassis (AC or DC) are used together. Do not attempt to remove or reconfigure the keys.

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15

8. Replace the power supply faceplate by aligning its four ball studs with the four power supply faceplate clips and pressing the faceplate towards the chassis until it snaps into place.

The power supply faceplate must be replaced prior to powering on the G10 CMTS to ensure that proper air ventilation occurs throughout the chassis.


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Figure 7: Front and Rear Views of Midplane

Front View

P5

P4

P3

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P1

Fan Connectors

1 2 3 4 5 6 7 8 9 10 11 12 13

PS1 PS2 PS3 PS4 PS5 PS6 PS7 PS8 PS9 PS10

PowerSupplyConnectors

cPCI Bus Domain A

Pwr Supply Domain A Pwr Supply Domain B

cPCI Bus Domain B

Rear View

P5

P4

P3

Fan Connectors

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PowerDistributionConnectors

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Installing a Front-Loaded Module

17

Figure 8: Power Supply Installation


This section describes the procedure for installing a DOCSIS Module, a Chassis Control Module, and a NIC Module. Refer to Figure 7 on page 16 and Figure 5 on page 6 for views of the front, rear, and top of the chassis midplane.

DOCSIS Modules are installed in front card cage slots 1 through 4 (for Domain A) and slots 10 through 13 (for Domain B).

Chassis Control Modules are installed in front card cage slot 6 (for Domain A) and slot 7 (for Domain B).

NIC Modules are installed in front card cage slot 5 (for Domain A) and slot 9 (for Domain B). NIC Modules are shipped from the factory with two Multi-Mode GBIC modules installed. If you are using a different GBIC module interface, you will need to replace the Multi-Mode GBIC modules that are shipped with the NIC Module. GBIC module removal and installation is performed while the NIC Module is installed in the chassis.

1

Power

2

Fault

Do not install DOCSIS Modules that support the DOCSIS standard and DOCSIS Modules that support the EuroDOCSIS standard within the same G10 CMTS chassis. DOCSIS Modules that support EuroDOCSIS are labeled as such on the front panel of the module.


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As DOCSIS Modules are installed in your CMTS, ensure the correct number of power supplies are installed to support your configuration. The Juniper Networks production guideline for the number of power supplies to install for N+1 power supply redundancy is provided in Table 1. To implement full power redundancy (power supplies, power transition modules, and input power), the number of power supplies installed in domain A must also be installed in domain B.

Table 1: Power Supply Guideline

1. If an air management panel is installed in the slot to be populated, remove it from the card cage.

2. Unlock the ejectors of the module to be installed so that each ejector rests at approximately 45° away from its locked position.

3. Align the printed circuit board of the module with the card guides and slowly slide the module into the slot until it comes to a stop with the inside tabs (tabs closest to midplane) of the upper and lower ejectors resting directly under and over, respectively, the module ejector rail (refer to Figure 9 on page 19).

4. Simultaneously close the ejectors toward the module faceplate to the vertical position until each ejector release clicks into position.

5. Tighten the two retainer screws by applying 3 in lb of torque to each screw.

6. If you have installed a NIC Module and you will be using a GBIC module interface other than Multi-Mode, then you must replace the Multi-Mode GBIC modules that are shipped with the NIC Module. Remove each Multi-Mode GBIC module from the installed NIC Module by squeezing the metal clasps at the top and bottom of the GBIC module towards the module itself, and firmly pull out the module until it is fully removed from its slot.

7. The GBIC modules that you will be using must now be installed in the NIC Module. With the label side of the GBIC module facing the right, slide each module into its NIC Module slot until the metal clasps at the top and bottom of the module click into place.

Number of DOCSIS Modules

Number of Power Supplies

1 3

2 4

3 5

4 6

5 7

6 8

7 9

8 10

The GBIC module can only be installed one way. If it is oriented in its slot incorrectly, it will stop about halfway into the slot. If this occurs, remove the GBIC module, rotate it 180°, and reinstall it.

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Installing a Rear-Loaded Module

19

Figure 9: Front-Loaded Module Installation


This section describes the procedure for installing an HFC Connector Module, a CCM Access Module, and a NIC Access Module. Refer to Figure 7 on page 16 and Figure 5 on page 6 for views of the front, rear, and top of the chassis midplane.

HFC Connector Modules are installed in rear card cage slots 1 through 4 (for domain A) and slots 10 through 13 (for domain B).

CCM Access Modules are installed in rear card cage slot 6 (for Domain A) and slot 7 (for Domain B).

NIC Access Modules are installed in rear card cage slot 5 (for Domain A) and slot 9 (for Domain B).

1. If an air management panel is installed in the slot to be populated, remove it from the card cage.

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2

2


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2. Unlock the ejectors of the module to be installed so that each ejector rests at approximately 45° away from its locked position.

3. Align the printed circuit board of the module with the card guides and slowly slide the module into the slot until it comes to a stop with the inside tabs (tabs closest to midplane) of the upper and lower ejectors resting directly under and over, respectively, the module ejector rail (refer to Figure 10 on page 20).

4. Simultaneously close the ejectors toward the module faceplate to the horizontal position until each ejector release clicks into position.

5. Tighten the two retainer screws by applying 3 in lb of torque to each screw.

Figure 10: Rear-Loaded Module Installation

Unlike front-loading modules, the ejectors on rear-loading modules lock in the horizontal position (90° from the faceplate) when the module is properly installed into its card slot.

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

1

2

2

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Cabling an HFC Connector Module

21


Each DOCSIS Module— and its corresponding HFC Connector Module—support a total of four downstream channels, where one channel is assigned to each physical downstream port. Each DOCSIS Module supports a total of 8 or 16 upstream channels (depending on the DOCSIS Module model) which can be logically allocated to any one of the four physical upstream ports. Figure 11 on page 21 illustrates an example where the number of channels allocated on each port is five, three, seven, and one, respectively. The assignment of a node to a port, and the allocation of upstream channels per upstream port should be considered prior to connecting the coaxial cables from the cable plant to the HFC Connector Module.

Figure 11: Example of Allocation of Multiple Channels Per Port

One possible deployment scenario for the upstream is to attach one node per upstream port and to turn on one upstream channel per node. If one of the nodes reaches capacity due to high penetration or heavy usage of bandwidth-intensive services, then another channel can be provisioned on that port.

Prior to inserting a coaxial cable into any of the HFC Connector Module F-connectors, ensure that the cable meets the requirements provided in the Juniper Networks G10 CMTS Installation and Configuration manual.

In the following procedures, a node may represent a single node, or multiple nodes that are combined.


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Figure 12: HFC Connector Module Rear Panel

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

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Cabling a Chassis Control Module

23

The following procedure describes how to connect to the downstream ports (refer to Figure 12 on page 22 for port labeling):

1. Select the first node(s) in the cable plant for assignment to the first of four downstream ports. Connect the coaxial cable associated with the first node(s) to the F-connector on the HFC Connector Module labeled “DS 0”.

2. If applicable, repeat the previous step for the second, third, and fourth nodes for connection to downstream ports “DS 1”, “DS 2”, and “DS 3”, respectively.

The following procedure describes how to connect to the upstream ports:

3. Select the first node(s) in the cable plant for assignment to the first of four upstream ports. Connect the coaxial cable associated with the first node(s) to the F-connector on the HFC Connector Module labeled “US 0”.

4. If applicable, repeat the previous step for the second, third, and fourth nodes for connection to upstream ports “US 1”, “US 2”, and “US 3”, respectively.

If a NIC Module in not used in the G10 CMTS, connect each of the two 10/100BASE-T Ethernet RJ-45 ports labeled “Eth0” and “Eth1” to the appropriate network equipment in the headend (refer to Figure 12 on page 22 for port labeling).


The Chassis Control Module contains a 10/100BASE-T Ethernet RJ-45 port labeled “Eth0” on its front panel (refer to Figure 13 on page 24). This port is used for the management interface to the G10 CMTS. The following procedure describes how to connect this port to the network:

1. Carefully thread the Ethernet cable into the cable channel from the rear of the chassis (refer to Figure 3 on page 4) until it extends through the opening of the power supply faceplate.

2. Plug the RJ-45 connector of the Ethernet cable into the RJ-45 port of the Chassis Control Module labeled “Eth0.”

3. Attached the other end of the Ethernet cable to its respective network equipment in the headend.

When connecting nodes to the upstream ports of an HFC Connector Module, do not split a coaxial cable from one node and attach it to more than one upstream port. Doing so prevents using the complete features of a DOCSIS Module that were designed for supporting four separate nodes or four groups of nodes that are combined.

The CCM Access Module is not used in this procedure.


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Figure 13: Chassis Control Module and CCM Access Module Front Panels

Eth0

COM

Eth0

Eth1

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Cabling a NIC Module

25


The NIC Module contains two full-duplex, 1-Gigabit Ethernet GBIC (Gigabit Interface Converter) transceiver ports on its front panel. Refer to the Juniper Networks G10 CMTS Installation and Configuration manual for the specifications of the various types of GBIC interfaces provided.

The following procedure describes how to connect the network cables to these ports (refer to Figure 14 on page 26 for port labeling):

1. Carefully thread each of the two cables into the cable channel from the rear of the chassis (refer to Figure 3 on page 4) until they extend through the opening of the power supply faceplate.

2. Connect the transmit/receive pair of each of these cables to the GBIC ports labeled “0” and “1” on the NIC Module.

3. Attached the other end of each cable to its respective network equipment in the headend.

4. Repeat this process if another NIC Module is installed in the chassis.

Figure 15 on page 27 provides the front view of the chassis with the network cables installed into a NIC Module.

If using optical cables, take care not to bend the cables too sharply when threading them through the cable channel.

Both ports on each NIC Module must be connected to the network if redundancy is desired.


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Figure 14: NIC Module and NIC Access Module Panels

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Figure 15: NIC Module Cabling – Front View

Power

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Power

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Power

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Power

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Power

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Power

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Cabling a NIC Access Module

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This section describes how to interconnect up to two NIC Access Modules to multiple HFC Connector Modules in a non-redundant configuration. The procedure assumes that a NIC Module only supports the DOCSIS Modules installed in the same domain of the chassis. Therefore, if five or more DOCSIS Modules are installed in the system, then two NIC Modules are installed to support them. In addition, the procedure assumes that DOCSIS Modules are installed in the following slot order: 1, 2, 3, 4, 10, 11, 12, 13.

The NIC Access Module cables are used to interconnect the Fast Ethernet ports of the HFC Connector Modules to the NIC Access Module. The 12 RJ-45 connectors on the NIC Access Module cable plugged into the connector labeled “2” on the NIC Access Module can be used as general purpose switched FastEthernet ports. Refer to Table 1 on page 18 for details.

1. If applicable, remove the protective cover that is inserted into the RJ-21 end of the NIC Access Module cable.

2. Firmly insert the RJ-21 end of the cable into the connector labeled “1” on the NIC Access Module in slot 5 (refer to Figure 14 on page 26).

3. Tighten the two cable retainer screws by applying 4 in lb of torque to each of the screws.

4. Locate the RJ-45 connectors of the NIC Access Module cable labeled “PORT 5” and “PORT 6” and plug them into the RJ-45 ports of the HFC Connector Module in slot 1 labeled “Eth0” and “Eth1,” respectively (refer to Figure 12 on page 22 for port labeling). If an HFC Connector Module is installed in slot 2, proceed to Step 5; otherwise, jump ahead to Step 15.

5. Locate the RJ-45 connectors of the NIC Access Module cable labeled “PORT 7” and “PORT 8” and plug them into the RJ-45 ports of the HFC Connector Module in slot 2 labeled “Eth0” and “Eth1,” respectively. If an HFC Connector Module is installed in slot 3, proceed to Step 6; otherwise, jump ahead to Step 15.



In this particular procedure, the RJ-45 ports of the CCM Access Module labeled “Eth0” and “Eth1” are unused.

It is recommended that the following procedure be followed to allow for future wiring considerations.

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29

8. If you have reached this step in the procedure, then at least five HFC Connector Modules are installed in the G10 CMTS, in which case a second NIC Access Module and its corresponding cable are required to complete the interconnection procedure. If applicable, remove the protective cover that is inserted into the RJ-21 end of the NIC Access Module cable.

9. Firmly insert the RJ-21 end of the second NIC Access Module cable into the connector labeled “1” on the NIC Access Module in slot 9 (refer to Figure 14 on page 26).

10. Tighten the two cable retainer screws by applying 4 in lb of torque to each of the screws.


12. Locate the RJ-45 connectors of the second NIC Access Module cable labeled “PORT 7” and “PORT 8” and plug them into the RJ-45 ports of the HFC Connector Module in slot 11 labeled “Eth0” and “Eth1,” respectively. If an HFC Connector Module is installed in slot 12, proceed to Step 13; otherwise, jump ahead to Step 15.


14. Locate the RJ-45 connectors of the NIC Access Module cable labeled “PORT 11 and “PORT 12” and plug them into the RJ-45 ports of the HFC Connector Module in slot 13 labeled “Eth0” and “Eth1,” respectively.

15. At this point, all of the Ethernet ports of the HFC Connector Modules should be connected to the NIC Access Module. Figure 16 on page 30 provides an illustration of these connections (without the HFC Connector Module coaxial cables shown).

16. All used and unused Ethernet cable wires on either NIC Access Module cable should be dressed appropriately and routed to avoid obstructing the rear connections of the G10 CMTS.

Table 2 on page 31 summarizes the NIC Access Module wiring plan used in this procedure. The “Module – Slot / Port” headings specify the module name, the slot in which the module is installed, and the RJ-45 port label of the module.


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Figure 16: NIC Access Module Cable Connections

Eth0

Eth1

COM

Eth0

Eth1

COM

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth2

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth1

Eth2

US D

US C

US 1

US 0

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DS 2

DS 1

DS 0

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Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

Eth0

Eth1

US 3

US 2

US 1

US 0

DS 3

DS 2

DS 1

DS 0

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Attaching a PC to the Chassis Control Module

31

Table 2: NIC Access Module Wiring Plan

Attaching a PC to the Chassis Control Module

Initial configuration of the G10 CMTS requires a direct connection between a personal computer (PC) and the Chassis Control Module. Using the DB-9– to–DB-9 null modem serial cable supplied in the accessory kit, connect one end of the cable to the RS-232 DB-9 port labeled COM on the Chassis Control Module front panel (refer to Figure 13 on page 24), and connect the other end to the serial port on your PC.

NIC Access Module 5 Cable/Port Module – Slot/Port

NIC Access Module 9 Cable/Port Module – Slot/Port

Cable 1 / PORT 1 Reserved Cable 1 / PORT 1 Reserved




Cable 1 / PORT 5 HFC – 1 / Eth0 Cable 1 / PORT 5 HFC – 10 / Eth0








Cable 2 / PORT 1 FastEthernet or Unused1 Cable 2 / PORT 1 FastEthernet or Unused1












1. These ports can be used as general purpose switched Fast Ethernet ports; otherwise, these connectors are unused. Ports 1–12 on Cable 2 correspond to FastEthernet ports 0–11, respectively, under the interface fastEthernet sub-mode for the NIC Module.

An adapter may be needed to connect the DB-9 connector of the cable to the serial port of your PC (for example, DB-9–to–DB-25).

Connecting to Power Sources

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AC Power

Each AC power transition module in the G10 CMTS chassis contains a standard IEC 15-A three-prong male AC power receptacle for connecting to an AC power source (refer to Figure 3 on page 4). Facing the rear of the chassis, the AC power transition modules on the right and left sides of the chassis independently support the power supplies in Domain A and Domain B, respectively.

The following procedure describes the steps for connecting the AC power transition modules to their power sources (refer to Figure 17 on page 33):

1. Ensure that the rocker switch on each AC power transition module is in the OFF (O) position.

2. Swing the power cord retainer clips to their upright position, plug the female end of each 15-A power cord supplied with your shipment into the AC power receptacle on each AC power transition module, then close the retainer clips so that they clasp around the power cords.

3. Plug the male end of each 15-A power cord to independent power sources. Always use AC power sources that support the ground prong of the power cord.

Ensure that you have read and taken the proper safety precautions as described in the Juniper Networks G10 CMTS Installation and Configuration manual prior to connecting any power source to the G10 CMTS.

To enhance the redundancy capabilities, each power transition module must be powered by sources on different circuits.

The G10 CMTS power supplies are autosensing which enables them for usage with 110 VAC or 220 VAC.

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Figure 17: AC Power Cord and Retainer Clip

DC Power

Each DC power transition module in the G10 CMTS chassis contains a terminal block for connecting to a DC power source (refer to Figure 18 on page 34). Unlike the AC configuration, the DC power transition modules do not operate independently. Each DC power transition module supports the power supplies in both domains of the chassis.

The following procedure describes the steps for connecting the DC power transition modules to their power sources:

1. Shipped with the G10 CMTS are ring lugs that are used to connect the DC power cord to the DC power transition module terminal block. These ring lugs must be crimped to the negative (–) and positive (+) wires of the DC power cord in order to properly connect to the DC power transition module.

2. Remove the screw from the negative (–) terminal on the terminal block of the DC power transition module, insert the screw through the ring lug of the power cord that will be attached to the negative (–) terminal of the DC power source, and tighten the screw into the negative (–) terminal on the terminal block. Apply 20 in lb of torque to the screw.

3. Remove the screw from the positive (+) terminal on the terminal block of the DC power transition module, insert the screw through the ring lug of the power cord that will be attached to the positive (+) terminal of the DC power source, and tighten the screw into the positive (+) terminal on the terminal block. Apply 20 in lb of torque to the screw.

Power CordRetainer Clip

To enhance the redundancy capabilities, it is recommended that each power transition module be powered by sources on different circuits.


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4. Connect the other end of the power cord connected to the negative (–) terminal on the terminal block of the DC power transition module to the negative (–) terminal of the DC power source in accordance with the manufacturer’s specifications.

5. Connect the other end of the power cord connected to the positive (+) terminal on the terminal block of the DC power transition module to the positive (+) terminal of the DC power source in accordance with the manufacturer’s specifications.

Figure 18: DC Power Transition Module

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G10 CMTS Configuration 35

Chapter 3G10 CMTS Configuration

This chapter describes the configuration procedure for the G10 CMTS. It is assumed that the installation procedures described in “G10 CMTS Installation” on page 9 have been followed prior to performing the procedures presented in this chapter. It is recommended that the entire configuration process in this chapter be read prior to performing the actual G10 CMTS configuration.

Powering On the G10 CMTS

The following steps define the power-on procedure and the expected state of the LEDs on the power supplies, fan trays, and module panels that should be monitored after the G10 CMTS is powered on. If the G10 CMTS does not power up correctly, refer to the Juniper Networks G10 CMTS Installation and Configuration manual for the possible causes and corresponding actions to take.

1. Ensure that the power sources connected to the power transition modules are on.

2. If the G10 CMTS is AC-powered, press the rocker switch on each AC power transition module to the ON (|) position. There is no requirement that the two power switches be turned on in any particular order. If the G10 CMTS is DC-powered, the system will be powered up when the DC power transition modules have been connected to the DC power sources.

3. Remove the power supply faceplate by pulling the flanges on each side of the faceplate away from the chassis until the faceplate ball studs are removed from the power supply faceplate clips.Ensure that all power supplies are operating normally by checking that the POWER LED is illuminated green and the FAULT LED is not illuminated.

4. Replace the power supply faceplate by aligning its four ball studs with the four power supply faceplate clips and pressing the faceplate towards the chassis until it snaps into place.

5. Ensure that the fan tray LEDs (two in front, one in rear) are not illuminated (refer to Figure 1 on page 2 and Figure 3 on page 4 for the location of these LEDs).

To minimize the risk of damage to the G10 CMTS, a failed fan tray should be replaced as soon as possible to ensure that proper air ventilation occurs throughout the chassis.


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6. Immediately after the G10 CMTS is powered on, check that the Test LED on every DOCSIS Module faceplate is green and blinking (refer to Figure 19 on page 37). This indicates that the module’s self test is running. Continue to monitor each module’s Test LED until it stops blinking, at which point a green illuminated LED indicates the successful completion of that module’s self test. LEDs 1 through 6 should be green, indicating all software has been successfully loaded and initialized.

7. Immediately after the G10 CMTS is powered on, check that the Power LED on the Chassis Control Module faceplate is green (refer to Figure 19 on page 37).

8. Immediately after the G10 CMTS is powered on, wait for the OK LED on the NIC Module faceplate to illuminate green, which indicates the module initialization has been successfully completed (refer to Figure 20 on page 38).

9. The OPERATIONAL LED at the top of the NIC Access Module rear panel should be illuminated green after confirming the OK LED on its corresponding NIC Module is in the correct state as described in the previous step (refer to Figure 20 on page 38).

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G10 CMTS Configuration


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Figure 19: DOCSIS Module and Chassis Control Module Front Panels

Eth0

Hot Swap


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Figure 20: NIC Module and NIC Access Module Panels

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Powering On and Configuring the PC

39

Powering On and Configuring the PC

1. Power on the personal computer (PC) attached to the serial port of the Chassis Control Module.

2. Launch your asynchronous terminal emulation application (such as Microsoft Windows Hyperterminal), and establish a direct connection. Configure the port settings as follows:

Bits per second: 9600

Data bits: 8

Parity: None

Stop bits: 1

Flow control: None

3. When a successful connection is made between the PC and the G10 CMTS, the terminal emulation screen on your PC will display a banner and prompt you for a login username:

Copyright (c) 2000-2002 Juniper Networks, Inc.

G10 CMTS Release sw_rev_num

Login:

where:

sw_rev_num represents the software revision number

Logging In and Out of the G10 CMTS

1. Type root at the login prompt and press ENTER:

Login: root ↵

2. You will then be prompted for a password. Type changeme as the password and press ENTER:

Password: changeme ↵

You will see the following Command Line Interface (CLI) system prompt:

G10$root#

3. If desired, you can logout of the system as follows:

G10$root# logout↵

Configuring the G10 CMTS

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This section describes how to use the CLI to perform the initial configuration of the G10 CMTS. The complete details of the CLI can be found in the Juniper Networks G10 CMTS CLI Reference manual.

The procedures provided herein describe how to configure the following:

Usernames and passwords

Miscellaneous parameters

Configuration file

Downstream channel parameters

Upstream channel parameters

A single cable interface consisting of one downstream channel and one upstream channel on a DOCSIS Module/HFC Connector Module pair in slot 1

Two Fast Ethernet interfaces on a DOCSIS Module/HFC Connector Module pair in slot 1

Two Gigabit Ethernet interfaces on a NIC Module in slot 5

Management interface

These procedures are provided for illustration purposes. The actual parameters specified during your initial configuration are dependent on your particular preferences, as well as your network and HFC plant characteristics.

Cable Interface Assignment

The G10 CMTS is shipped with a default cable interface assignment as presented in Table 3 through Table 5 on page 41. Note that the downstream and upstream channel to cable interface assignments and the upstream channel to upstream port assignments specified in these tables are the factory defaults, and can be changed through the CLI or the startup-config file. The default assignments are used if the startup-config file does not assign any downstream or upstream channels to a MAC domain. The procedures in this chapter assume this default assignment.

Some of the CLI commands used in the following procedures set various parameters to their default values and hence their execution is not mandatory. These commands are provided for illustration purposes.

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41

Table 3: Downstream Channel Assignment

Table 4: Upstream Channel Assignment (8-Channel DOCSIS Module)

Table 5: Upstream Channel Assignment (16-Channel DOCSIS Module)

Cable Interface Downstream Channel Downstream Port

0 0 DS 0

1 1 DS 1

2 2 DS 2

3 3 DS 3

Cable Interface Upstream Channel Upstream Port

0 0 US 0

1

1 2 US 1

3

2 4 US 2

5

3 6 US 3

7

Cable Interface Upstream Channel Upstream Port

0

0

US 01

8

9

1

2

US 13

10

11

2

4

US 25

12

13

3

6

US 37

14

15


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Creating Usernames and Passwords

1. At the initial CLI command prompt, you are in the read-write privilege mode. If desired, you can enter the configure terminal mode and change your password from the default of changeme:

G10$root# configure terminal↵G10$root(config)# username root password myword↵

2. You may also want to create new usernames and passwords. Because you are in the privilege mode, any newly created username will have privilege mode access:

G10$root(config)# username newuser password myword↵

Configuring Miscellaneous Parameters

If desired, the following miscellaneous parameters can be assigned:

Set the Hostname to Hub1-G10:

G10$root(config)# hostname Hub1-G10↵Hub1-G10$root(config)#

Set the SNMP read-only and read-write SNMP password community strings to public and private, respectively:

G10$root(config)# snmp-server community public ro↵G10$root(config)# snmp-server community private rw↵

Set the time to 2:30pm and the date to December 22, 2001 (you must first exit to the top level):

G10$root(config)# exit↵G10$root# clock set 143000 22 12 2001↵

Viewing and Saving Running Configuration

To view the current configuration of the G10 CMTS, execute the following command:

G10$root# show running-config↵

To save the current configuration of the G10 CMTS, execute the following command. Upon booting up, the system uses the startup-config file to set the configuration:

G10$root# copy running-config startup-config↵

conf t can be used as an abbreviation for the configure terminal command.

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43

Configuring Downstream Channel Parameters

The procedure in this section specifies various parameters for downstream channel 0 of slot 1 / interface 0. The available downstream channels on a DOCSIS Module are channels 0–3, which always correspond to downstream ports 0–3, respectively, on the HFC Connector Module. Table 6 provides the valid ranges of all parameters specified in this section.

Table 6: Downstream Channel Parameter Ranges

1. Enter the interface cable sub-mode, specifying slot 1 and interface 0:

G10$root# configure terminal↵G10$root(config)# interface cable 1/0↵

2. Specify a frequency of 453000000 Hz for downstream channel 0:

G10$root(config-if-c1/0)# cable downstream 0 frequency 453000000↵

3. Specify an RF power of 55 dBmV for downstream channel 0:

G10$root(config-if-c1/0)# cable downstream 0 rf-power 55↵

4. Specify 64qam modulation for downstream channel 0:

G10$root(config-if-c1/0)# cable downstream 0 modulation 64qam↵

5. Specify an interleave depth of 8 for downstream channel 0:

G10$root(config-if-c1/0)# cable downstream 0 interleave-depth 8↵

6. At this point, if you desire to view the downstream channel 0 parameters and status, enter the following command:

G10$root(config-if-c1/0)# cable downstream 0 show↵

7. Enable downstream channel 0:

G10$root(config-if-c1/0)# no cable downstream 0 shutdown↵

Parameter Range

slot 1–4, 10–13

interface 0–3

channel (=port) 0–3

frequency DOCSIS: 91000000 to 857000000EuroDOCSIS: 109000000 to 861000000

RF power 500 to 610 (tenths dBmV)

modulation 64qam or 256qam

interleave depth 8, 16, 32, 64, 128


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Configuring Upstream Channel Parameters

The procedure in this section specifies various parameters for upstream channel 0 of slot 1 / interface 0. A default modulation profile for channel 0 will be used. The available upstream channels on a DOCSIS Module are channels 0–7 or 0–15 (depending on the DOCSIS Module model), and are assigned to the four upstream ports (0–3) on the HFC Connector Module by default as defined in Table 4 on page 41. Table 7 provides the valid ranges of all parameters specified in this section.

Table 7: Upstream Channel Parameter Ranges

1. Specify a channel width of 200000 Hz for upstream channel 0:

G10$root(config-if-c1/0)# cable upstream 0 channel-width 200000↵

2. Specify a frequency of 5000000 Hz for upstream channel 0:

G10$root(config-if-c1/0)# cable upstream 0 frequency 5000000↵

3. Specify a power level of 0 dBmV for upstream channel 0:

G10$root(config-if-c1/0)# cable upstream 0 power-level 0↵

4. Specify start and stop data backoff values of 2 and 6, respectively, for upstream channel 0:

G10$root(config-if-c1/0)# cable upstream 0 data-backoff 2 6↵

5. Specify start and stop range backoff values of 3 and 7, respectively, for upstream channel 0:

G10$root(config-if-c1/0)# cable upstream 0 range-backoff 3 7↵

6. Specify a minislot size of 8 for upstream channel 0:

G10$root(config-if-c1/0)# cable upstream 0 minislot-size 8↵

Parameter Range

slot 1–4, 10–13

interface 0–3

channel 0–7 or 0–15 (depending on the DOCSIS Module model)

port 0–3

channel width 200000–3200000 Hz

frequency DOCSIS: 5000000 to 42000000EuroDOCSIS: 5000000 to 65000000

power-level -10 to +25 dBmV

data-backoff 0–16

range-backoff 0–16

modulation-profile 1–256

minislot-size 2, 4, 8, 16, 32, 64, 128

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45

7. At this point, if you desire to view the upstream channel 0 parameters and status, enter the following command:

G10$root(config-if-c1/0)# cable upstream 0 show↵

8. Enable upstream channel 0:

G10$root(config-if-c1/0)# no cable upstream 0 shutdown↵

Configuring Fast Ethernet Interfaces

The procedure in this section enables the two Fast Ethernet interfaces on the DOCSIS Module/HFC Connector Module pair in slot 1:

1. Exit back to the configure terminal mode:

G10$root(config-if-c1/0)# exit↵

2. Enter the interface fastEthernet sub-mode, specifying slot 1 and interface 0 for Fast Ethernet port 0:

G10$root(config)# interface fastEthernet 1/0↵

3. Enable Fast Ethernet port 0:

G10$root(config-if-f1/0)# no shutdown↵


G10$root(config-if-f1/0)# exit↵





Configuring Gigabit Ethernet Interfaces

To configure and enable a Gigabit Ethernet interface, you must have a group-privilege of ip-rw and you must enter the interface gigaEthernet sub-mode.

The procedure in this section enables the two Gigabit Ethernet interfaces on the NIC Module slot 5:



2. Enter the interface gigaEthernet sub-mode, specifying slot 5 and interface 0 for Gigabit Ethernet port 0:

G10$root(config)# interface gigaEthernet 5/0↵


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3. Enable Gigabit Ethernet port 0:

G10$root(config-if-g5/0)# no shutdown↵


G10$root(config-if-g5/0)# exit↵

5. Enter the interface gigaEthernet sub-mode, specifying slot 5 and interface 1 for Gigabit Ethernet port 1:

G10$root(config)# interface gigaEthernet 5/1↵

6. Enable Gigabit Ethernet port 1:

G10$root(config-if-g5/1)# no shutdown↵

Configuring a Management Interface

A management interface is established by using the Fast Ethernet port labeled “Eth0” on the Chassis Control Module. The following procedure describes how to configure this interface:



2. Assign an IP address of 192.177.122.3 for the default gateway for the management interface:

G10$root(config)# ip default-gateway 192.177.122.3 management↵



4. Assign an IP address of 192.177.122.1 and a subnet mask of 255.255.255.0 for slot 6 / interface 0:

G10$root(config-if-f6/0)# ip address 192.177.122.1 255.255.255.0↵



Do not configure the Chassis Control Module management port on a 169.254/16 network. These IP addresses are used by the G10 CMTS internally, and any IP address clashes can result in unpredictable behavior.

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Index 47

IndexIndex

Numerics1-Gigabit......................................................................25

Aaccessory kit..........................................................10, 31air exhaust ..............................................................8, 12air intake .................................................................7, 12

faceplate ................................................................7faceplate clip ..........................................................7

air management module ...........................................1, 7air management panel ..................................1, 8, 18, 19air ventilation ..................................................10, 15, 35autosensing .................................................................32

BBits per second............................................................39

Ccablecoaxial............................................................21, 23optical ..................................................................25

cable channel ....................................................7, 23, 25cable guide ....................................................................7cable plant...................................................................23card guide .....................................................................7card slot ......................................................................20CCM Access Module ............................................1, 7, 19channel .......................................................................21

width....................................................................44chassis...............................................1, 7, 12, 13, 32, 33

air ventilation .......................................................35mounting .............................................................12

Chassis Control Module ...........................1, 6, 17, 31, 36chassis ground nuts .................................................7, 12CLI see Command Line InterfaceCommand Line Interface .............................................39configuration ...............................................................40

Ddata backoff.................................................................44Data bits ......................................................................39DB-25 ..........................................................................31DB-9 ............................................................................31DOCSIS Module .......................................1, 6, 17, 23, 36document conventions ..................................................xDomain ...........................................................14, 17, 19downstream ....................................................21, 23, 43

Eejector ...................................................................14–20equipment shelf.....................................................12, 13ESD

ground strap.........................................................14strap jack..............................................................14strap plug ...............................................................7

Ethernet.................................................................25, 29

Ffan tray................................................................7, 8, 35F-connector ...........................................................21, 23flow control .................................................................39

GGBIC ................................................................17, 18, 25

HHFC Connector Module......................1, 7, 19–23, 28–29

I IEC...............................................................................32interleave depth...........................................................43

LLEDFAULT ..................................................................35

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Index


front fan tray.................................................... 7, 35OK ....................................................................... 36OPERATIONAL..................................................... 36POWER................................................................35Power .................................................................. 36rear fan tray ..................................................... 8, 35Test...................................................................... 36

logout .......................................................................... 39

Mmidplane................................................................. 7, 16minislot size ................................................................44modulation.................................................................. 43module ejector rail ............................................ 7, 18, 20mounting bracket........................................................ 13

NNIC Access Module............................ 1, 7, 19, 28, 29, 36NIC Module ....................................... 1, 6, 17, 23, 25, 36node...................................................................... 21, 23

Ooptical ......................................................................... 25

PParity .......................................................................... 39password..................................................................... 42PC ......................................................................... 31, 39port

1-Gigabit .............................................................. 25COM .................................................................... 31DB-25................................................................... 31DB-9..................................................................... 31downstream................................................... 21, 23Ethernet ......................................................... 25, 29F-connector.................................................... 21, 23GBIC..................................................................... 25RJ-21 .............................................................. 28, 29RJ-45 .............................................................. 23, 28RS-232 ................................................................. 31serial .............................................................. 31, 39upstream.............................................................. 23

power cord.................................................................. 32power level.................................................................. 44power receptacle

AC.................................................................... 8, 32DC.......................................................................... 8

power source......................................................... 32, 35power supply....................................................... 1, 7, 35

alignment............................................................. 14bay................................................................... 7, 14ejector rail ........................................................ 7, 14

faceplate ............................7, 10, 14, 15, 23, 25, 35faceplate clip ..........................................................7filler panel ....................................................1, 7, 14installation ...........................................................14

power switchAC ..............................................................8, 32, 35

power transition moduleAC ..............................................................8, 32, 35DC..........................................................................8

Rrack mount..................................................................12range backoff ..............................................................44redundancy ...........................................................32, 33RF power.....................................................................43RJ-21 .....................................................................28, 29RJ-45 .....................................................................23, 28running-config file .......................................................42

Sshipping carton ...........................................................10startup-config file.........................................................42Stop bits ......................................................................39

Tterminal emulation......................................................39

Uupstream.........................................................23, 44, 45username ....................................................................42

Documents

Juniper Networks G10 CMTSCMTS can be found in the documents listed in “G10 CMTS Document Set” on page xi. Organization Juniper Networks G10 CMTS Getting Started is organized as