ADLINK AmITX-BT-I - Manual (Page 26)

Page 26 AmITX-BT-I
RS-422 (COM3-4 only)
Pin # Signal Pin # Signal
1 Tx- 2 Tx+
3 Rx+ 4 Rx-
5 6
7 8
9 GND 10 5V / 12V
RS-485 (COM3-4 only)
Pin # Signal Pin # Signal
1 Tx/Rx- 2 Tx/Rx+
3 4
5 6
7 8
9 GND 10 5V / 12V
SW10/SW11 (RS-422/485 Mode Select)
RS-232 (default) RS-422 RS-485
1 ON* ON OFF
2 OFF* ON ON
See Section 4.3.8 Serial Port Mode Switch Setting (SW14, SW10, SW11)
COM Cable (optional):
COM Port Cable (length 250mm), P/N: 30-20876-0000