23

Interface connections

Refer to the interface specifications for the host computer for details on

connecting to is its interface connector. The following illustration shows a

typical connection configuration.

Data protocol

The specifications for the DTR and X-ON/X-OFF modes are the same as

for the Standard Serial Interface.

1
2
3
4
6
1
2
3
4
5
6
7
8
20
F-GND
TXD
RXD
RTS
DSR
20
25
7
S-GND
DTR
INIT
Printer side
(D-sub 25 pin) IBM PC side
(D-sub 25 pin)
F-GND
TXD
RXD
RTS
CTS
DSR
S-GND
DCD
DTR
1
2
3
4
6
3
2
7
8
6
5
1
4
F-GND
TXD
RXD
RTS
DSR
20
25
7
S-GND
DTR
INIT
Printer side
(D-sub 25 pin) IBM PC side
(D-sub 9 pin)
F-GND
TXD
RXD
RTS
CTS
DSR
S-GND
DCD
DTR