Operating instructions

2.4.5 Parallel I/O Connector
The Otari Standard Parallel I/O Connector is used for connection with
external controlling devices.
Table 2-10
Parallel I/O Connector Pin Assignments
No Function Level In/Out
1. RECORD Switch Low In
2. PLAY Switch Low In
3. STOP Switch Low In
4. Fast Forward Switch Low In
5. Rewind Switch Low In
6. Lifter Defeat Low In
9. Shut Off Switch Low Out
10. Record Tally Low Out
11. Play Tally Low Out
12. Stop Tally Low Out
13. Fast Forward Tally Low Out
14. Rewind Tally Low Out
16. Signal Ground
17. Tach Pulse
1
Out
18. Tape Direction (Forward=Low) H/L Out
19. Capstan clock (9.6 kHz fixed) Out
20. Capstan Control (9.6 kHz nominal) In
21. Tape Speed A
2
Low Out
22. Tape Speed B
2
Low Out
28. Fast Wind Speed Control Voltage 0-15V
29. Fast Wind Speed Control Command Low In
30. TC Track Repro Enable Low In
32. Record Rehearsal Command Low In
33. +5 V Regulated (max. 150 mA) ±10%
34. Aux Power
35. Aux Power
36. Power Ground
37. Power Ground
1
Speed Rate
7.5 ips 20 pulse/sec
15 ips 40 pulse/sec
30 ips 80 pulse/sec
2
Speed Speed A Speed B
7.5 ips Low High
15 ips High Low
30 ips High High
}
(unreg 24 ~ 40 V max. 500 mA)
MTR-90III Operation and Maintenance Manual
October 1990
Section 2 Installation
2 - 13