Oki Microline 3390 User Manual page 317

Appendix D: Interface Data
Diagram 8
Diagram 9
D-30
Connection: 4-wire
Power source receive loop: Host
Power source send loop: Host
Host
+ -
+ -
Connection: 4-wire / (3-wire)
Power source receive loop: Printer
Power source send loop: Printer
Host
Printer
SP4
A + -
B
D+ 9
D– 10
SP5
A + -
B
B+ 18
B– 19
GND 7
Printer
SP4
A
+ -
B
D+ 9
D– 10
SP5
A -
+
B
B+ 18
B– 19
GND 7
Assignment of
Short-Circuit Jumper
A B
SP1
Ready/Busy, XON/XOFF
A B
SP1 Centronics Blocked Duplex
A B
SP2
A B C
SP3
A B
SP4
A B
SP5
Assignment of
Short-Circuit Jumper
A B
SP1
Ready/Busy, XON/XOFF
A B
SP1 Centronics Blocked Duplex
A B
SP2
A B C
SP3
A B
SP4
A B
SP5