User's Manual

CB Series PC104 Plus User’s Manual Hardware Installation
2-4
Serial Interface Selection
For the CB-114 and CB-134I, the serial interface is selecting using the onboard DIP switches.
CB-114
Mode S1 S2 S3
RS-232 --- --- ON
RS-422 --- ON off
4-wire RS-485 ON off off
2-wire RS-485 off off off
CB-134I
Mode S1 S2
RS-422 --- off
4-wire RS-485 off ON
2-wire RS-485 ON ON