Communication Structure Via C37.94 Interface To Transceiver 21-216; Setting Up Transceiver 21-216 - ABB Relion 670 Series Application Manual

1MRK 505 382-UEN E
communication
100 ms, an alarm will be issued.
5.5.2 Communication structure via C37.94 interface to transceiver
21-216
LOCAL
IEC07000260 V1 EN-US
Figure 69: Communication structure via C37.94 interface to transceiver 21–216
IED
Transceiver 21–216
PCM
5.5.3 Setting up transceiver 21–216
Confirm that the attenuation of the fibre-optic cable, including splices and patch cables, does
not exceed the system budget. Remember to add a safety margin (minimum 3dB).
Make sure that the local fibre-optic transmitter (marked Tx) is connected to the remote unit's
fiber-optic receiver (marked Rx). Local Rx is to be connected to remote Tx.
Communication set-up, 670/650 series
Application Guide
requirements. If the telecommunication network is disturbed for more than
< 10 m
IED Transceiver
PCM
21-216xx
C37.94
Multi-mode
fibre-optic
< 3 km
Galvanic
connection
interface
G.703
External clock Internal clock
(slave) (master)
Terminal used for binary signal transfer
Optical-to-electrical interface converter
Pulse code multiplexer
© Copyright 2017 ABB. All rights reserved
< 10 m
PCM Transceiver
21-216xx
Multi-mode
Galvanic
connection
interface
G.703
External clock
(slave)
Communication set-up
GUID-0072DAE4-B2D8-4866-B820-4E7B3F8B1CDA v1
REMOTE
IED
C37.94
fibre-optic
< 3 km
IEC07000260-1-en.vsdx
GUID-0206E4D5-50DA-49E2-80E3-4F89A2540A7B v1
Section 5
71