User`s manual

10 Hardware Information
PXI-3920/3910
User’s Manual
2.4.3 GPIB Connector
The GPIB connector on PXI-3920/3910 is a micro D-sub 25P con-
nector and is used to control external bench-top instruments. You
need the ACL-IEEE488-MD1 cable to connect PXI-3920/3910 and
any instruments. 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 1KB FIFO for read/write operations
X Provides driver APIs compatible with NI-488.2 driver soft-
ware
X Up to 14 instruments may be connected
Figure 2-5: GPIB Connector & Pin Assignments
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