ABB REB 551-C3*2.5 Installation And Commissioning Manual page 52

Installing the 56/64 kbit data communication
cables
Lc
Rx
IED
Tx
Sc
Cc Communication cable
Lc Line connector
Rx Receive input
Sc Screen (or earth/ground) connection
Tx Transmit output
Figure 12: Communication cable installation
Cc
Chapter 5
Installing the terminal
Lc
Tx
External
Equipment
Rx
Sc
en03000087.vsd
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