Appendix D
Connectors
© National Instruments Corporation
D-7
VXIpc-486 Model 500 Series
GPIB
SYSFAIL
FAILED
TEST
ON LINE
ACCESS
DRIVE
TURBO
VGA
COM2
DISK
DRIVE
COM1
LPT
TRG IN
AUDIO/
TRG OUT
CLK
KEYBOARD
GPIB
RESET
1
GPIB
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Connector Type: GPIB
Figure D-7. GPIB Connector
Table D-7. GPIB Connector Signals
Pin
Signal Name
Signal Description
1
DIO1*
Data Bit 1
2
DIO2*
Data Bit 2
3
DIO3*
Data Bit 3
4
DIO4*
Data Bit 4
5
EOI*
End or Identify
6
DAV*
Data Valid
7
NRFD*
Not Ready for Data
8
NDAC*
Not Data Accepted
9
IFC*
Interface Clear
10
SRQ*
Service Request
11
ATN*
Attention
12
SHIELD
Chassis ground
13
DIO5*
Data Bit 5
14
DIO6*
Data Bit 6
15
DIO7*
Data Bit 7
16
DIO8*
Data Bit 8
17
REN*
Remote Enable
18
GND
Logic Ground
19
GND
Logic Ground
20
GND
Logic Ground
21
GND
Logic Ground
22
GND
Logic Ground
23
GND
Logic Ground
24
GND
Logic Ground
