IBM 5150 - Page 49

Rear Panel
Pin Signal
1
Motor Control
2
Ground
3
Motor Control
4 Data In
5 Data
Out (Microphone or
Auxiliary)
Cassette
Connector
5-Pin DIN Connector
Electrical Characteristics
Common from Relay
Relay N.O. (6
Vdc at 1A)
500nA at ± 13V - at 1,000 - 2,000 Baud
250 IlA at 0.68Vdc
or
**
0.075Vdc
* All voltages and currents are maximum ratings and should not be exceeded.
* * Data out can be chosen using a jumper located on the system board.
(Auxiliary
--0.68 Vdc or Microphone --0.075 Vdc).
Interchange of these voltages on the cassette recorder could lead to damage
of recorder inputs.
Cassette Interface Connector Specifications
1-30 System Board