IBASE IB825 - Manual (Page 14)

INSTALLATIONS
10 IB825 User’s Manual
JP1, JP2, JP3: RS232/422/485 (COM2) Selection
COM2 is fixed for RS-232 use only. COM1 is selectable for RS232,
RS-422 and RS-485.The following describes the settings for COM1.
COM1
Function
RS-232 RS-422 RS-485
Jumper
Setting
(pin closed)
JP1:
1-2
JP2:
3-5 & 4-6
JP3:
3-5 & 4-6
JP1:
3-4
JP2:
1-3 & 2-4
JP3:
1-3 & 2-4
JP1:
5-6
JP2:
1-3 & 2-4
JP3:
1-3 & 2-4
COM1 is jumper selectable for RS-232, RS-422 and RS-485.
Pin # Signal Name
RS-232 R2-422 RS-485
01 DCD TX- DATA-
03 RX TX+ DATA+
05 TX RX+ NC
07 DTR RX- NC
09 Ground Ground Ground
02 DSR NC NC
04 RTS NC NC
06 CTS NC NC
08 RI NC NC
10 NC NC NC