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GE Energy
50
994-0089–1.00–2, General
RS-485 2-Wire Terminal Block Signal Definitions
2-Wire
RS-485 Channel Position
Number
Function Signal Flow
1 TX1+ IN/OUT
2 TX1- IN/OUT
3 FGND 1 -
4 RX1- -
Channel 1
5 RX1+ -
6 TX2+ IN/OUT
7 TX2- IN/OUT
8 FGND 2 -
9 RX2- -
Channel 2
10 RX2+ -
Note: The terminal block positions are numbered from 1 to 10 starting from the bottom
of the card.