A-7
Specifications
AMM-1570/1572 User’s Guide
Stock Number:510526-00, Rev. B Page:A-7
Print Spec Number: 492379-00
Current Date: 3/7/94 ECN Date: 3/8/94
Floppy Disk Interface

Standard Electronic and Physical Interface

Connector

The floppy disk interface connector should be an unshrouded 34-pin

header.

Audio Input Connector (J4) Pinouts

The pinouts for J4 are as follows:

❒
Driver Output Signals:
VOL 0 volts minimum, 0.5 volts maximum
VOH Open collector, 5.25 volts maximum
IOL 60 mA
IOH 0.1 mA
Receiver Input Signals:
VT- 1.0 volts maximum
VT+ 1.4 volts minimum
Tied to +5 volt supply through 150 ohm resistors. Schmitt Trigger with
0.8-volthysteres is.
Pin Signal Name
1 Ground
2Right
3 Ground
4 Left