3 gpib connector, Figure 2-4: gpib connector & pin assignments, Fully compatible with the ieee 488 standard – ADLINK PXI-3950 User Manual
Page 28: Up to 1.5mb/s data transfer rates, On-board 2 kb fifo for read/write operations, Provides driver apis compatible with ni, 2 driver soft- ware, Up to 14 instruments may be connected
14
I/O Connectors and Pin Assignments
2.2.3
GPIB Connector
The GPIB connector on PXI-3950 is a micro D-sub 25P connector
and is used to control external bench-top instruments. You need
the ACL-IEEE488-MD1 cable to connect PXI-3950 and any instru-
ments. The on-board GPIB controller has the following features:
X
Fully compatible with the IEEE 488 standard
X
Up to 1.5MB/s data transfer rates
X
On-board 2 KB FIFO for read/write operations
X
Provides driver APIs compatible with NI
1
-488.2 driver soft-
ware
X
Up to 14 instruments may be connected
Figure 2-4: GPIB Connector & Pin Assignments
1. NI is a registered trademark of National Instruments Corporation
PIN
Signal
Description
1 DIO1#
GPIB
Data
1
2 DIO2#
GPIB
Data
2
3 DIO3#
GPIB
Data
3
4 DIO4#
GPIB
Data
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 Chassis
Ground Chassis Ground
13 Ground
Signal
Ground
14 DIO5#
GPIB
Data
5
15 DIO6#
GPIB
Data
6
16 DIO7#
GPIB
Data
7
17 DIO8#
GPIB
Data
8
18 REN
Remote
Enable
19 Ground
Signal
Ground
20 Ground
Signal
Ground
21 Ground
Signal
Ground
22 Ground
Signal
Ground
23 Ground
Signal
Ground
24 Ground
Signal
Ground
25 Ground
Signal
Ground