GPIB Pinouts & Interconnections

GPIB Pinouts & Interconnections

The connections or pinout for the GPIB system is standardised and uses the 24 way Amphenol Type 57 connector.

While some systems have, mainly in the past, used other connectors, the 24 way Amphenol type 57 connector is the one that is by far the most widely used and its connections have been defined as in the table given below.

The GPIB pinout is therefore well standardised and virtually without exception the Amphenol style connector is the one used these days.

GPIB connector pins numbering

The diagram below shows the various pins on the standard 24 way Amphenol type 57 connector in order to identify the different pins for the pinout with their relevant functions.

It is worth noting that the actual pin numbers are written onto the plastic of the connector by the pins themselves. This is always worth checking to make sure orientations are correct and to eliminate errors in interpretation.

GPIB pinout connections

The connections or pinout for the GPIB connector are given in the table below:

GPIB Pinout Table


GPIB Line Name

GPIB Abbreviation
1Data Input / Output 1DIO1
2Data Input / Output 2DIO2
3Data Input / Output 3DIO3
4Data Input / Output 4DIO4
5End or IdentifyEOI
6Data ValidDAV
7Not Ready For DataNRFD
8Not Data AcceptedNDAC
9Interface ClearIFC
10Service RequestSRQ
12Shield (Connected to Earth)
13Data Input / Output 5DIO5
14Data Input / Output 6DIO6
15Data Input / Output 7DIO7
16Data Input / Output 8DIO8
17Remote EnableREN
18Twisted pair with pin 6
19Twisted pair with pin 7
20Twisted pair with pin 8
21Twisted pair with pin 9
22Twisted pair with pin 10
23Twisted pair with pin 11
24Signal Ground

It can be seen from the pinout table for the GPIB connections that the DAV, NRFD and NDAC handshaking lines all run with twisted pairs as do IFC, SRQ and ATN.

Again it can be seen from the pinout table that the GPIB connections for the data lines do not have twisted pairs, but are contained within the overall screening of the cable.

Watch the video: GPIB Interface Installation Guide - Option G01. N9320B Spectrum Analyzer. Keysight Technologies (October 2021).