Table 2-r: btj2/btj3 rs-232 connections (j13) – GE Industrial Solutions Galaxy Vector Controller GCM3 User Manual
Page 32
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Galaxy Vector Controller GCM2, GCM3
2 - 18 Product Description
Issue 4 January 2008
board is from the load circuit breakers. Pin 3 provides DG
connection to the alarm board. This DG connection provides DG
for alarm board LED operation. Pin 2 is a current limited
(50-ma) battery bus supply for possible future use.
J9-J12: Thermal inputs.
Table 2-Q: BTJ2/BTJ3 Thermal Input Connections
(J9-J12)
Pin
Number
Description
1
RTH ALM
2
NC
3
NC
4
RTH +
5
RTH RTN
6
RTH EN
J13: RS-232 connection.
Table 2-R: BTJ2/BTJ3 RS-232 Connections (J13)
Pin
Number
Description
1
TXD
2
RTS
3
DTR
4
RXD
5
CTS
6
DSR
7
DCD
8
NC
9
MODEM GRN
10
MODEM YEL
11
DGND 100 ohm terminated
12
MODEM PRESENT
13
+5 Volts
14
DGND
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