SB-V01 All-in-one timing solution for

smart grid and substation automation

Index

� Introduction

� Interfaces and connectors

� Main features

� key points

� PTP vs IRIG-B

� Application

� All-in-one solution for substation timing synchronization

� GPS to PTP and IRIG B

� IRIG B extender + PTP converter

� Adding legacy IED/RTU to new PTP enabled substation

� Conclusions

Digital Instruments S.r.l. 2

Introduction

� SB-V01 is a compact DIN rail mount device with

multiple source clock and mutiple timing outputs

� GPS receiver (optional) to be master or

grandmaster clock

� Web based and SNMP management

� Relais for telesignaling and telecontrol

� All-in-one timing solution for covering all possibe

configuration with smart grid and substation

Digital Instruments S.r.l. 3

Interfaces and connectors

Digital Instruments S.r.l. 4

IRIG-B ELECTRICAL

INPUT (00X/12X)

IRIG-B OPTICAL

INPUT

PTP/NTP

CUSTOM TIMING SERIAL

PROTOCOLS (TOD)0

2 x IRIG-B ELECTRICAL

OUTPUT (00X)

2 x IRIG-B ELECTRICAL

OUTPUT (12X)

2 x IRIG-B OPTICAL OUTPUT

POWER (24/48Vdc or

100-240Vac/Vdc)

TLS/TLC

STATUS LEDS

Main features

� Multireference source

� IRIG B optical (ST)

� IRIG B electrical 001/12x autosensing (SMA)

� PTP/IEEE1588v2 and NTP (RJ45)

� GNSS (optional – SMA)

� Multitiming outputs

� 2 x IRIG B optical (ST)

� 2 x IRIG B electrical unmodulated – 00x (SMA)

� Optional custom TTL signals

� 2 x IRIG B electrical modulated – 12x (SMA)

� Optional 0-centric custom signals (i.g. 2.048 MHz) SMA

� PTP IEEE1588v2 and NTP (RJ45)

� ToD (Time of Day) or any other custom serial strings (DB9)

� Wide range power supply

� 36-72 VDC

� 24-48 VDC

� 110-220 VAC/VDC

Digital Instruments S.r.l. 5

Key Points

� Multiple sources and multiple outputs

� All-in-one in substation timing

� Wide range of power supply to cover all possible powering

situation

� Autosensing IRIG B electrical input

� Web based and SNMP for remote management

� Telesignaling & Telecontrol via relais for remote

management without using network

� Optional GNSS

� Complete solution with no additional GPS Grandmaster

Digital Instruments S.r.l. 6

All-in-one solution for substation

timing

� GPS to PTP and IRIG B serving both legacy and new

Ethernet enabled IED/RTU

� IRIG B to PTP converter, reuse already instelled GPS

receiver and provide PTP to new Ethernet enabled

IED/RTU

� IRIG B extender + PTP converter: extend already used

IRIG B code optical or electrical bus providing also PTP

interface for new Ethernet enabled IED/RTU

� Adding legacy IED/RTU to new PTP enabled substation:

SB-V01 as PTP to IRIG B and ToD legacy IED/RTU

Digital Instruments S.r.l. 7

GPS to PTP and IRIG B

Digital Instruments S.r.l. 8

PTP ENABLED

IED

IRIG-B LEGAGY

IED

PTP ENABLED

IED

IRIG-B LEGAGY

IED

PTP ENABLED

IED

IRIG-B LEGAGY

IED

PTP/NTPIRIG-B ELECTRICAL

IRIG-B OPTICAL

ETS-EVO Master Clock

IRIG B extender + PTP converter

Digital Instruments S.r.l. 9

PTP ENABLED

IED

IRIG-B LEGAGY

IED PTP ENABLED

IED

IRIG-B LEGAGY

IED PTP ENABLED

IED

IRIG-B LEGAGY

IED

PTP/NTPIRIG-B ELECTRICAL

IRIG-B OPTICAL

OLD IRIG-B OPTICAL NETWORK

NEW IRIG-B OPTICAL AND PTP NETWORK

ADDED ADDEDADDED

IRIG-B LEGAGY

IED

Adding legacy IED/RTU to new

PTP enabled substation

Digital Instruments S.r.l. 10

PTP ENABLED

IED

IRIG-B LEGAGY

IED

PTP ENABLED

IED

PTP ENABLED

IED

IRIG-B LEGAGY

IED

PTP/NTPIRIG-B ELECTRICAL

IRIG-B OPTICALETS-EVO Master Clock

EXISTING PTP NETWORK

ADDED ADDED ADDED

SyncSwitch SyncSwitchSyncSwitch

PTP vs IRIG B

� IRIG B is a serial time code TTL (00x) or modulated on 1 kHz carrier (12x)

which use a separate network cabling for the sole purpose of timing

� Over coax (deasy-chain with impedance restrictions)

� Over fiber (point-to-point)

� PTP/IEEE1588

� Uses Ethernet protocol as transport network – date and timing can be mixed on

same network cabling

� Ethernet is a naturally multipoint /broadcasting network

� Accuracy in the range of nanoseconds

� IEC61850 also define Ethernet as communication network within electrical

installations

� PTP reduces HW cost in Grandmaster clock as well as IED/RTU

Digital Instruments S.r.l. 11

Conclusions

� PTP allows to use a single communication network

(Ethernet based) for both data and timing within the

substation and reduces cost for both GM clock and

IED/RTUs

� SB-V01 has multiple inputs and outputs actng as:

� IRIG B to PTP converter for adding new IED/RTU to legacy IRIG B substations

� PTP to IRIG B converter for adding legacy IED/RTU to new PTP enabled substation

� IRIG B extender using optical In/Outin daisy-chain and connecting new enabled PTP/IED/RTU at any point in the IRIG B bus

� Grandmaster Clock when GNSS module is equipped

Digital Instruments S.r.l. 12

Thank you!

Digital Instruments S.r.l.

Via Parco degli Scout, 13 – 20091 Bresso (MI)

Phone: +39 (02) 66506250

Web: http://www.digital-instruments.com

Mail: info@digital-instruments.com

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