GE iBox Installation And Maintenance Manual page 35

GE Grid Solutions
Connecting Serial Interfaces
Serial Port The COM port pin-outs, for both RS-232 and RS-485 configurations, are as follows:
Pinouts
2-Wire RS-485 The following schematic shows the cable wiring necessary for 2-wire RS-485
Cable operation.
GE Information
, continued
DB-9 Pin
1
2
3
4
5
6
7
8
9 EARTH GND
* Radio Key Open Collector Output for COM Port 1 only (jumper selected with JP3
installed).
iBox Connectors J2, J3 or J4
Description PIN #
N/C 1
Data - 2
Data - 3
N/C 4
Common Ground 5
N/C 6
Data + 7
Data + 8
Earth Ground 9
Installation and Maintenance Guide
RS-232
CD
RX
TX
N/C
Com GND
N/C*
RTS
CTS
- TX / RX
+ TX / RX
994-0047-5.10-4
iBox/iBox Kit
RS-485
N/C
RX-
TX-
N/C
Com GND
N/C
TX+
RX+
EARTH GND
35