Oki Microline 3390

D-34
Appendix D: Interface Data
Connection: 2-wire
Power source receive loop: Printer
Power source send loop: None
IBM Asynchronous Printer Assignment of
Adapter Short-Circuit Jumper
Connection: 4-wire
Power source receive loop: Host
Power source send loop: Printer
IBM Asynchronous Printer Assignment of
Adapter Short-Circuit Jumper
-
+
-
+
-
+
A
B
A
B
SP4
SP5
AB
SP5
CAB
AB
SP3
SP4
AB
SP2
AB
SP1
Centronics Blocked Duplex
D+ 9
D– 10
B+ 18
B– 19
GND 7
D+ 9
D– 11
B– 25
B+ 18
GND 7
-
+
-
+
-
+
D+ 9
D– 10
B+ 18
B– 19
GND 7
A
B
A
B
SP4
SP5
AB
SP5
CAB
AB
SP3
SP4
AB
SP2
AB
SP1
AB
SP1
Ready/Busy, XON/XOFF
Centronics Blocked Duplex
D+ 9
D– 11
B+ 18
B– 25
Diagram 15
Examples
Diagram 16
This connection is equivalent
to circuit diagram 10.