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Prepared by: Ahmed Hussien Bebars

[email protected] Mobile:+201024614238

RTN 950

1. Outdoor:

There are two main types:

RTN600 ODU

RTN XMC ODU

RTN 600 ODU types:

High Power

Standard Power

Low Power

Comparison between ODU:

Low power (LP) Standard Power (SP) High Power (HP)

Modulation Supported QPSK-16QAM QPSK256 QAM QPSK256 QAM

Channel Spacing 3.528 MHz 3.528 MHz 756 MHz

Min Tx power / Max

Rx Power

0 /-20 dBm -6 /-20-25 dBm 1 /-20-25 dBm

How read RAU Label at site:

MODEL:

1: refer to RAU Band 2: refer to equipment type PDH (P) or SDH (S)

3: refer to T/R (duplex distance) 4: refer to Sub band 5: refer to high power (P) & low power (N)

6: refer to output power level (standard or high)

Show ODU type

(SP or LP or HP)

Show frequency range support by this RAU

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Table show example from Sub band and duplex distance at ODU:

ODU:

As show in figure, according to ODU direction at installation determine link Polarization (H or V), where

is no horn separated as Ericsson ODU

RTN XMC ODU

RTN 600 ODU

RTN XMC types:

XMC-1 XMC-2

Modulation Supported QPSK-16QAM QPSK256 QAM

Channel Spacing 3.528 MHz 3.556MHz

Min Tx power / Max Rx Power According to frequency According to frequency

ODU types Low capacity for PDH High power

Frequency band 723 GHz 742 GHz

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Label:

Hybrid Coupler (Power Splitter):

There are two types:

Balanced: losses between standard and Main equal (3dBm)

Un Balanced: losses at stand by 6 dBm

Label:

Model:

1: indicate hybrid Coupler 2: refer to frequency band 3: refer to Balanced (B) or UN Balanced (U)

4: refer to losses at standby

Show frequency band and 2

indicate XMC-2 & 1 for

XMC-1

Show RAU sub

band Hi or low

Show frequency range

supported

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IF cable type:

Type Applicable Distance (Distance Between an

IDU and an ODU)

Connector IF Jumper Required

ODU Side IDU Side

5D cable

< 120 m Type N, male connector Type TNC, male connector No

RG-8U cable

120 m to 180 m Type N, male connector Type N, male connector Yes

1/2-inch cable

180 m to 300 m Type N, male connector Type N, male connector Yes

Note: A 5D cable connects the IF interface of an ODU to the IF interface of an IDU. An RG-8U cable or 1/2-inch

cable connects the IF interface of an ODU to the IF jumper of an IDU

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IF Specification of ODU:

Item Specification

IF Signal Center frequency of the input IF 350 MHz

Center frequency of the RX IF 140 MHz

Return loss of the IF interface < -15 dB

ODU O&M Signal Modulation mode ASK

Uplink signal 5.5 MHz

Downlink signal 10 MHz

Indoor:

Minimum requirements to install RTN:

1. Chassis

2. CST or CSH (main processing card)

3. IFU2 or any IF board to connect with ODU

4. FAN

5. PIU (Power interface Unit)

Chassis:

Air flow:

Heights: 2U

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All Board installed in chassis is half slot:

Controlling Board:

CST (Control switching and timing board) CSH (Control Switching and Hybrid board)

Valid slots 7/8 main 7 & stand by 8 7/8 main 7

Service

Supported

Provide 32x32 cross connection VC4 Provide 32x32 cross connection VC4

Support VC12 (E1) & VC4 Support VC12 (E1) & VC4 & 10G Packet switching

DCN Support out band DCN Support out band and in band DCN

NMS/COM port Port RJ45 Node Management (NM) Port RJ45 Node Management (NM)

EXT To manage cascaded nodes To manage cascaded nodes

Caution: never connect EXT port and NMS port with one cable as show in fig, where two ports connected

internal on same hub

CST:

CSH:

Each card has compact flash (CF) and Dip switch to take back up from main memory like as RMM at

NPU (Ericsson vendor)

1: refer to dip switch

2: refer CF card

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There are two buttons at card interface:

Button Name Description

CF RCV CF configuration restoration button After this button is pressed and held for eight seconds, the board

automatically restores the NE database from the CF card. RST Warm reset button After this button is pressed, a warm reset is performed on the

board.

IF (Intermediate frequency) boards:

Main function convert baseband signal to IF (intermediate frequency)

IF1 IFU2 IFX2 ISU2 ISX2

Modulation

Supported

QPSK128

QAM

QPSK256

QAM

QPSK256

QAM

QPSK256

QAM

QPSK256

QAM

Channel spacing 728 MHZ 756 MHZ 756 MHZ 3.556 MHZ

E1 4E1STM 1 5 E175 E1 5 E175 E1 Support STM1& 2

STM1 or 5 E1

75 E1

Support STM1& 2

STM1 or 5 E1

75 E1

Packet rate NA 9420 Mb/S 9420 Mb/S 4456 M/bS 4456 M/bS

Min capacity 8 Mb/Sec 22 M 22 M 8 Mb/Sec 8 Mb/Sec

Max capacity 155 Mb/Sec 570 Mb/S 570 Mb/S 606 Mb/S 606 Mb/S

XPIC NA NA yes NA yes

Power -48 V -48 V -48 V -48 V -48 V

Slots (1+0)

priority

3,5,4,6,12 3,5,4,6,12 3,5,4,6,12 3,5,4,6,12 3,5,4,6,12

Slots (1+1)

Priority

3&5, 4&6, 1&2 3&5, 4&6, 1&2 3&5, 4&6, 1&2 3&5, 4&6, 1&2 3&5, 4&6, 1&2

DCN Out band only In band & Out

band

In band & Out

band

In band & Out

band

In band & Out

band

AM (Adaptive

Modulation)

NA yes yes only

in Integrated IP

radio mode

only

in Integrated IP

radio mode

IF1 Board:

IFU2:

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IFX2:

ISU2:

ISX2:

Ethernet interface Board:

Use to drop Ethernet frame IEEE 802.3 at site

EM6T EM6TA EM6F EM6FA

FE (fast Ethernet) 4 Electrical 4 Electrical 4 Electrical 4 Electrical

GE (Giga Ethernet) 2 Electrical 2 Electrical 2 SFP (Optical) 2 SFP (Optical)

Valid Slots 4,6,2,1,3,5 4,6,2,1,3,5 4,6,2,1,3,5 4,6,2,1,3,5

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EFP8: support Ethernet over PDH support 8 ports 10/100 Mb/Sec

Valid slots: 4, 6, 1,2,3,5

SL1D & SL1DA: use to support one STM1 or 2 STM1 channelized & two ports SFP according to SFP

type it will support electrical or Optical

SP3S & SP3D: use to support E1 dropping at site

SP3S Support 16 E1 & SP3D Support 32 E1

SP3S:

SP3D:

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E1 cable:

E1 Panel:

Use to drop E1

physically dir RBS

PIU (Power Interface Unit):

Power cable

Input Voltage: -38.4 V to -72.0 V

FAN:

Power Consumption: 4.1 W at room temp

Power Consumption: 29 W at high temp

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U2000 Management Server

To get current alarm at RTN node press right click on RTN node as show in fig. and choose current

alarms:

The following fig appear

Alarm with green color it mean alarm clear if color

gray it mean alarm still found

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Main alarms and solution:

Card Alarm Meaning

CSH/CST

BD-Status & Hard Bad Card faulty & changed

RPS-IND It mean there is switching from main to

stand by

APS-IND indicating that the MS protection

switching occurs on SL1D card

IF1/IFU2/ISU2

IF cable Open

MW LOF Indicating that the radio frame is lost.

BD Status & Hard Bad Card faulty & changed

Volt Loss indicating that the power voltage is

unavailable solve cold restart

MAC_EXT_EXC indicates that the number of bit errors at

the MAC layer crosses the threshold

SL1D

TU AIS Hard Bad Cross connection not complete at path

R-LOS indicating that the signals on the receive

line side are lost

BD status & Hard Bad Card faulty & changed

SP3D/SP3S

T-LOS indicating that the 2 Mbit/s analog

signal is lost at the specific port

TU-AIS There is problem at cross connection

(AIS)

UP E1 AIS E1 down from far end physical

Down E1 AIS E1 down from near end physical


ODU

Radio RSL low indicating that the radio receive power is

very low (like as RF input level)

Radio TSL low indicating that the radio transmit power

is very low


EM6F/EM6T

Eth LOS indicating the loss of Ethernet port

connection

Eth excessive BER Solution force speed (100 Mb/S) not

Auto negotiation


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There are two types for history alarms:

1. History alarms on NMS: this types get all alarms that synched between node at site &

U2000 server if node became down MNG & restored MNG again after specific time this

duration not synched by U2000 to get alarms at this duration use the second type

2. History alarms on NE: get all alarms on NE at site actual

to know link between two NE node and position for IF at each NE ( Site and facing) press on line

between two NE the following table appear as show in fig

This mark mean link 1+0

It mean link

from R2856

to R2853

3-IFU2 mean card IFU2 install

at slot 3 at site Source (R2856)

It mean card IFU2 install

at slot 4 at destination

(Facing)

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To open NE (Network Element) press on NE double click:

Slot 3 has IFU2 connect with ODU at (23) as show in NE fig

It is indoor part and

each slot has zero

before number that

mean indoor

This related to ODU and

each ODU has 2 before slot

number that connected with

it at indoor

Press on it to open NE

Explorer and configure

Modules

Press on it when add new Module

at magazine

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Open NE Explorer to start radio link Configuration:

Open Function treeconfigurationRadio Link Configuration as show in fig

1. To select IF board that you will configure it

2. To configure link type 1+0 or 1+1 according to SF6 file

3. Link ID (always default 1)

4. IF channel (channel spacing at E///) according to SF6 file

5. Modulation Mode (QPSK1024 QAM) according to IF board capability

6. Tx frequency

7. T/R Spacing it refer to duplex distance always let it zero where program write Rx automatic

according to duplex distance standard at this sub band

8. Tx power, it refer to transmitted power, RSL (Received signal power show under Tx power as

show in fig)

9. Unmute refer to transmitter power on

10. Refer to ODU Band at this example 23 GHZ

11. Refer to ODU Sub band (high or low)

1

2

3

4

5

6

7

8

9

10

11

12

13

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12. Refer to ODU type (High Power) with RTN600 ODU as show before

13. Refer to AM (Adaptive Modulation) this solution use to save high priority CCT at bad

weathered& discarded low priority data (packet)

How to create E1 cross connection Local:

Open Function treeconfigurationSDH Service configurationpress create as show in fig

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The following fig appears:

It mean E1 cross

Connection

E1 Source Connection

Press here to select E1 dropping

number as show in E1 dropping fig

Destination

It mean cross connection between E1

number 2 at SP3D & number 2 at IFU2

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E1 dropping fig:

At SP3D card

The same steps with IFU2 Boarded you make cross connection at this indoor, at facing indoor received

E1 from the same E1 number that you selected here to drop it at destination card

Green slot mean available card can

make cross connection on it, Blue

Boarder mean it is selected Select mark on needed

E1

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To delete E1 locally (at Site):

Right click on CCT and choose Expand to Bidirectional (and start delete E1 number 2 as we created

before)

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Native Ethernet Service types:

1. E-Line

2. E-LAN

3. QinQ

Steps to create E-LAN Service:

Open NE ExplorerConfigurationInterface ManagementEthernet Interface as show in fig

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Configure LAN interface that will use in E-LAN Service:

Card EM6F use to support Native Ethernet LAN port and should be set this parameter at LAN Port

1. LAN Port Number

2. Port status :Enable

3. Encapsulation type: 802.1Q

4. Working Mode: Auto (auto negotiate Speed)

5. Name: description

Set Port Rule:

1. Tag aware (forward frame that has VLAN Tag and drop another tag)

2. Access (forward all frames like as no tag on frame)

3. Hybrid (forward frame with Tag or no tag)

1 2

3 4 5

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Set parameter (Hybrid) as show in fig

Set Microwave port (at TN called WAN Port)

Open NE ExplorerConfigurationInterface ManagementMicrowave Interface

Set parameter 802.1 and write description at name part

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Set tag type (Hybrid)

To create VLAN & assign Microwave port and EM6F port in the same VLAN (Switching)

Open NE ExplorerConfigurationEthernet Service ManagementE-LAN Service

Press here to start

switching service

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1- Service ID: number range 1-4294967295

2- Service name: describe VLAN Name as TN

3- Press configure to start port selection

process

1- Ports that will started switching process

between them

2- VLAN ID, you can write range from VLAN

ID for ex 1-10 or write different VLAN ID

120,11,12 on the same port

1 2

3

1 2

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RTN Management parameter:

To set RTN IP

Open NE ExplorerCommunicationCommunication Parameters

7 for all RTN

installed at VF

eg network

Technology

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