GE Grid Solutions
D25
User's Manual
GE Information
994-0081-3.00-21
75
Communications Ports,
Continued
Table: Serial
XCOM Port
Pinouts
Pinouts for COM5 and COM6 serial ports for both RS-232 and RS-485
configurations:
DB-9 Pin
RS-232
RS-485
1
CD
N/C
2
RX
RX-
3
TX
TX-
4
(+12V)
(+12V)
5
GND
Com GND
6
(-12V)
(-12V)
7
RTS
TX+
8
CTS
RX+
9
EARTH GND
EARTH GND
2-Wire RS-485
Cable
Schematic for the cable wiring necessary for 2-Wire RS-485 operation.
Description PIN #
PIN # Description
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
N/C
Data -
Data -
N/C
Common Ground
N/C
Data +
Data +
Earth Ground
N/C
Data -
Data -
N/C
Common Ground
N/C
Data +
Data +
Earth Ground
External ±12
Volt Supply
The XCOM card part number 580-0931 is equipped with a 3-pin terminal
(Phoenix) block, where the power for modems attached to the DB-9
connectors can be externally supplied.
1
6
5
4
1
6
5
4
3 2 1
GND -12V +12V
External Power
Note
The power connections are labeled ±12 V, and can be used to provide a
variety of AC or DC voltages.
Use care not to exceed connector or cable specifications.
Summary of Contents for D25
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