A Appendix
368
7SD610 Manual
C53000-G1176-C145-4
A.1.2 Accessories
Communication
converter
Converter for the serial connection of the 7SD610 line protection system to synchro-
nous communication interfaces X.21 G703.1 (64 kbit/s), G703–T1 (1.1455 Mbit/s),
G703–E1 (2.048 Mbit/s) or symmetrical communication cables.
Name Order No.r
Optical-electrical communication converter CC-X/G with
synchronous interface (X.21 / G703.1) 7XV5662-0AA00
Optical–electrical communication converter CC-CU with
synchronous interface 7XV5662-0AC00
Optical-electrical communication converter CC-2M with
synchronous interface (G703-E1, G703-T1)
7XV5662-0AD00
Optical Repeater Fibre optical repeater for long-distance transmission of serial signals (up to 100 km /
62.5 miles)
Name Order No.r
Wide-area fibre optical repeater (24 km / 15 miles) 7XV5461-0BG00
Wide-area fibre optical repeater (60 km / 37.5 miles) 7XV5461-0BH00
Wide-area fibre optical repeater (100 km / 62.5 miles) 7XV5461-0BJ00
Isolating
Transformers
Isolating transformers are needed on copper lines if the longitudinal voltage induced
in the pilot wires can result in more than 60 % of the test voltage at the communication
Function 3 Pos. 15
4 remote commands Transformer inside
protection zone
Voltage/
frequency protection
Restricted Earth Fault Protection
without without without without A
without without With without B
without With without without E
without with with without F
with without without without J
with without with without K
with with without without N
with with with without P
with with without with S
with with with with T
Function 4 Pos. 16
External GPS synchronization of the differential protection
Without 0
With 1
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