Jp2, jp4, jp5: rs232/422/485 (com2) selection – IBASE IB827 User Manual
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INSTALLATIONS
JP2, JP4, JP5: RS232/422/485 (COM2) Selection
COM1 is fixed for RS-232 use only. COM2 is selectable for RS232,
RS-422 and RS-485.The following describes the settings for COM2.
COM2
Function
RS-232
RS-422
RS-485
Jumper
Setting
(pin closed)
JP5:
1-2
JP2:
3-5 & 4-6
JP4:
3-5 & 4-6
JP5:
3-4
JP2:
1-3 & 2-4
JP4:
1-3 & 2-4
JP5:
5-6
JP2:
1-3 & 2-4
JP4:
1-3 & 2-4
COM2 is jumper selectable for RS-232, RS-422 and RS-485.
Pin #
Signal Name
RS-232
R2-422 RS-485
1 DCD TX- DATA-
2 RX TX+ DATA+
3 TX RX+ NC
4 DTR RX-
NC
5 Ground Ground Ground
6 DSR NC
NC
7 RTS NC
NC
8 CTS NC
NC
9 RI NC
NC
10 NC
NC
NC
IB827 User’s Manual
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