Hitachi 670 Series Application Guide

LOCAL REMOTE
< 10 m
IED
Transceiver
21-219
SDH
MUX
IED
Multi-mode
fibre-optic
< 3.5 km
Galvanic
connection
interface
G.703 E1
(2Mbit)
IEC07000157-1-en.vsdx
< 10 m
SDH
MUX
Multi-mode
fibre-optic
< 3.5 km
Galvanic
connection
interface
G.703 E1
(2Mbit)
Transceiver
21-219
Slave
Slaves (external clock)
Transparent
21-219
master
IEC07000157 V1 EN-US
Figure 81: Communication structure with PDH/SDH port synchronized from transceiver
21-219
IED Terminal used for binary signal transfer
Transceiver 21–219 Optical-to-electrical interface converter
SDH MUX SDH multiplexer
Both line differential protection IEDs are set as slaves.
5.6.4 Setting up transceiver 21–219
GUID-8020026C-EFF7-48BD-973C-7AC7573F1A22 v1
IEC07000245-1-en.vsdx
IEC07000245 V1 EN-US
Figure 82: Transceiver 21–219 parts
1MRK505382-UEN Rev. K Section 5
Communication set-up
Communication set-up, 670/650 series 81
Application Guide
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Hitachi 670 Series Specifications

General

Brand	Hitachi
Model	670 Series
Category	Control Unit
Language	English