RAS96 RASCard User Guide
CommPlete Communications Server64
34-Pin Floppy Disk Drive Connector (J27)
This connector provides signal and data connection between the floppy drive and the
RASCard.
Figure A-4. Floppy disk connector.
Pin Description Pin Description Pin Description
1Ground 13 Ground 25 Ground
2RPM/RWC 14 Drive Select 1 26 Track 0
3Ground 15 Ground 27 Ground
4Not Used 16 Motor Enable 2 28 Write Protect
5Ground 17 Ground 29 Ground
6Not Used 18 Direction (Stepper
Motor) 30 Read Data
7Ground 19 Ground 31 Ground
8Index 20 Step Pulse 32 Select Head
9Ground 21 Ground 33 Ground
10 Motor Enable 1 22 Write Data 34 /DCHNG
11 Ground 23 Ground
12 Drive Select 2 24 Write Enable
Drive Power Connector (J13)
This connector supplies power and ground for an optional disk drive or CD-ROM
drive.
Figure A-5. Drive power connector.
Pin Description
112 VDC
2Ground
3Ground
45 VDC