Oki OKIPOS 407II ParallelBlack Users Guide - Page 60
Cable Connections, 4. Electrical Characteristics
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13-3. Cable Connections The followings are a recommended interface cable connections. Printer side Host side 25 pin 9 pin FG 1 TXD 2 RXD 3 RTS 4 CTS 5 DSR 6 SG 7 DTR 20 INIT 25 1 FG 2 3 TXD 3 2 RXD 4 7 RTS 5 8 CTS 6 6 DSR 7 5 SG 8 1 DCD 20 4 DTR Note: Use shielded wire less than 3 m in length. 13-4. Electrical Characteristics Voltage -3 V to -15 V +3 V to +15 V Data signal Mark Space Control signal OFF ON Binary status 1 0 - 56 -
– µ6 –
13-3. Cable Connections
The followings are a recommended interface cable connections.
Note:
Use shielded wire less than ³ m in length.
13-4. Electrical Characteristics
Voltage
Data signal
Control signal
Binary status
-³ V to -±µ V
Mark
OFF
±
+³ V to +±µ 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