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PC100 Series Operation Manual
COM2 [RS232/422/485]
Pinout
Pin #
RS232
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
Not Used
Configuring for RS232, RS422 or RS485
COM2 is configurable as RS232, RS422 or RS485 by configuring jumpers. To do this, jumper pins must be
configured at JP3 for the PC110C.
Configuring Jumpers
Jumpers consist of two or three metal pins with a plastic base mounted on the card. Using a jumper cap, it is
possible to connect the pins. Hardware is set up by opening or closing jumper pins.
Jumper
RS422
RS485
Tx-
Tx-
Tx+
Tx+
Rx+
Rx+
Rx-
Rx-
GND
GND
RTS-
Not used
RTS+
Not used
CTS+
Not used
Not used
Not used
Definition
2 pin jumper
3 pin jumper
Representation in Diagram
1010-1022 Rev. 01
15
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