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APPENDIX
D-2. Cable Connections

The followings are a recommended interface cable connections.

Note Use shielded wire less than 3m in length.

Note Use shielded wire less than 3m in length.

D-3. Electrical Characteristics
Voltage Data signal Control signal Binary status
-3V to -15V Mark OFF 1
+3V to +15V Space ON 0
11
2
3
4
5
6
2
3
7
5
8
6
1
4
NC
RXD
TXD
DTR
DSR
RTS
8
9
7
SG
CTS
NC
Printer side
(D-sub 9 pin)
Host side
3
2
4
7
5
6
8
20
RXD
FG
TXD
RTS
SG
CTS
DSR
DCD
DTR
25 pin9 pin
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
Printer side
(D-sub 25 pin)
Host side
3
2
7
8
6
5
1
4
TXD
RXD
RTS
CTS
DSR
SG
DCD
DTR
9 pin25 pin