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12-3. Cable Connections

The followings are a recommended interface cable connections.

Note: Use shielded wire less than 3 m in length.

12-4. Electrical Characteristics

Voltage Data signal Control signal Binary status

-3 V to -15 V Mark OFF 1

+3 V to +15 V Space ON 0

1
2
3
4
5
6
1
2
3
4
5
6
7
8
20
FG FG
TXD
RXD
RTS
CTS
DSR
20
25
7
SG
DTR
INIT
3
2
7
8
6
5
1
4
TXD
RXD
RTS
CTS
DSR
SG
DCD
DTR
Printer side Host side
25 pin 9 pin