GE D400 Substation Data Manager User Manual page 52

GE Energy
RS-485 4-Wire Terminal Block Signal Definitions
RS-485 Channel
Channel 1
Channel 2
Note: The terminal block positions are numbered from 1 to 10 starting from the bottom
of the card.
52
994-0089–1.00–2, General
Position 4-Wire (default)
Number
Function
1 TX1+
2 TX1-
3 FGND 1
4 RX1-
5 RX1+
6 TX2+
7 TX2-
8 FGND 2
9 RX2-
10 RX2+
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Signal Flow
OUT
OUT
-
IN
IN
OUT
OUT
-
IN
IN