Xycom 4115T User Manual page 28

4115T Light Duty Industrial PC
COM2 supports three modes: RS-232, RS-422, RS-485 (For DB-9 Connector)
Keyboard / Mouse Connector
POS-478 provides one keyboard and one mouse header connector, one external
keyboard & Mouse connector.
CN23A (Purple): Extended Keyboard 6-pin Mini Din Connector
Chapter 3 – POS-478 CPU Control Board and BIOS Setup
RS-232 Mode
PIN Description
1 DCD
2 RXD
3 TXD
4 DTR
5 GND
RS-422 Mode
PIN Description
1 TXD-
2 TXD+
3 NC
4 NC
5 NC
RS-485 Mode
PIN Description
1 RTX-
2 RTX+
3 NC
4 NC
5 NC
PIN Description
1 KB DATA
2 NC
3 GND
4 VCC
5 KB CLOCK
6 NC
24
PIN Description
6 DSR
7 RTS
8 CTX
9 RI
PIN Description
6 RX-
7 RX+
8 NC
9 Voltage
PIN Description
6 NC
7 NC
8 NC
9 Voltage
143926(A)