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