Oki Microline 3390

D-32
Appendix D: Interface Data
In combination with this circuit you can only use the Centronics
Blocked Duplex protocol in order to ensure the correct transmission
of data.
Connection: 3-wire
Power source receive loop: Printer
Power source send loop: Printer
Host Printer Assignment of
Short-Circuit Jumper
Connection: 2-wire
Power source receive loop: none
Power source send loop: Host
Host Printer Assignment of
Short-Circuit Jumper
-
+
-
+
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– 10
B+ 18
B– 19
GND 7
A
B
A
B
SP4
SP5
AB
SP5
CAB
AB
SP3
SP4
AB
SP2
AB
SP1
Centronics Blocked Duplex
Diagram 12
Diagram 13