Unitec Wash Select II POS Owner’s Manual - Manual (Page 183)

W A S H S E L E C T I I
Document Number: WS21002 169
Document Title: WSII Operations Manual
6 5VDC + output (from J1 pin 1)
J4 24VDC Printer Power (Printer Option Only)
Pin Description
1 24VDC + input from power supply
2 24VDC ground input from power supply
P1 Modem Connection (Standard PC-AT Pin Outs)
Pin Description
1 CD – carrier detect input
2 Receive Data input
3 Transmit Data output
4 DTR – Data terminal ready output
5 Ground
6 DSR – input
7 RTS – request to send output
8 CTS – clear to send output
9 N/C
J22 Expansion RS-485 Half Duplex (POS4000 Interface)
Pin Description
1 RS485 – (To POS4000 Pin 1)
2 RS485 + (To POS4000 Pin 2)
3 Ground reference (optically isolated) (To POS4000 Pin 3)
J23 Future Expansion RS-232
Pin Description
1 Not defined at this time
2 Not defined at this time
3 Not defined at this time
4 Not defined at this time
5 Not defined at this time
6 Not defined at this time
7 Not defined at this time
8 Not defined at this time
9 Not defined at this time