Connection with Host:
Host 25S
Printer 9P
(PC or compatible)
DTR 20 ...... 1 DSR
DSR 6
...... 6 DTR
TX 2
...... 2 RX
RX 3
...... 3 TX
CTS 5
...... 7 RTS
RTS 4
...... 8 CTR
GND 7 ...... 5 GND
Alternatively you can connect the 3 wires as follows:
Host 25S
Printer 9P
(PC or compatible)
TX 2
...... 2 RX
RX 3
...... 3 TX
GND 7 ...... 5 GND
pin 4
pin 5
pin 6
pin 20
Host 9S
(PC or compatible)
DTR 4
...... 1 DSR
DSR 6
...... 6 DTR
TX 3
...... 2 RX
RX 2
...... 3 TX
CTS 8
...... 7 RTS
RTS 7
...... 8 CTS
GND 5
...... 5 GND
Host 9S
(PC or compatible)
TX 3
...... 2 RX
RX 2
...... 3 TX
GND 5
...... 5 GND
pin 4
pin 6
pin 7
pin 8
122
Printer 9P
Printer 9P