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2.16 COM2 RS-232/422/485 (J10, J11 and J12)
Follow the jumper chart below to set the desired mode for COM2
Table 2.5: COM2 RS-232/422/485 (J10, J11 & J12)
J10
Closed pins
5-6
1-3 & 2-4
1-3 & 2-4
2.17 COM1- 4 RI pin +5/+12V (J15,J16,J14,J17)
COM1 - COM4 can supply +5 V or +12 V power to the serial devices via
RI pin of the COM port connector. The Pin 9 outputs of COM1 - COM4
can be connected to either RI or power by setting J14 & J19. If you select
power, you can choose +5 V or +12 V by setting J12 & J18.
Table 2.6: COM1, COM2 RI/power select (J15)
Closed pins
2-4
4-6
1-3
3-5
Table 2.7: COM1, COM2 RI/power select (J16)
Closed pins
4-6
2-4
3-5
1-3
Table 2.8: COM3, COM4 R1/power select (J17)
Closed pins
2-4
4-6
POS-761F User's Manual
J11
Closed pins
1-3, 2-4
3-5, 4-6
3-5, 4-6
Result
COM1 Power
COM1 RI*
COM2 Power
COM2 RI*
Result
COM1 (+12 V)
COM1 (+5 V)*
COM2 (+12 V)
COM2 (+5 V)*
Result
COM3 Power
COM3 RI*
22
J12
Closed pins
1-3, 2-4
3-5, 4-6
3-5, 4-6
Result
RS-232*
RS-422
RS-485
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