Connectors
Appendix D
VXIpc-486 Model 500 Series
D-6
© National Instruments Corporation
Floppy Disk Drive
9
SYSFAIL
FAILED
TEST
ON LINE
ACCESS
DRIVE
TURBO
VGA
COM2
DISK
DRIVE
COM1
LPT
TRG IN
AUDIO/
TRG OUT
CLK
KEYBOARD
GPIB
RESET
18
26
1
10
19
DISK
DRIVE
Connector Type:
26-pin Subminiature
DHD-22
Figure D-6. DISK DRIVE Connector
Table D-6. DISK DRIVE Connector Signals
Pin
Signal Name
Signal Description
1
+5V
+5 volts
2
GND
Ground
3
GND
Ground
4
GND
Ground
5
FRWC*
Reduced Write Control
6
INDEX*
Index
7
MO1*
Motor on 1
8
GND
Ground
9
FDS2*
Drive Select 2
10
FDS1*
Drive Select 1
11
MO2*
Motor on 2
12
GND
Ground
13
FDIRC*
Direction Control
14
GND
Ground
15
FSTEP*
Step
16
GND
Ground
17
FWD*
Write Data
18
FWE*
Write Enable
19
FTK0*
Track 0
20
FWP*
Write Protect
21
GND*
Ground
22
FRDD*
Read Data
23
GND*
Ground
24
FHS*
Handshake
25
DCHG*
Diskette Change
26
GND*
Ground