ABB Relion 670 series - Page 94

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 75: 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.
Section 5 1MRK 505 382-UEN B
Communication set-up
88 Communication set-up 670/650 series 2.2
Application Guide