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Chapter 4 IEEE-488 GPIB Interface
This chapter discusses setup of the IEEE-488 interface feature and describes the IEEE commands that apply to the
Bird 4421. Operators should understand IEEE standard 488-1978 and have basic computer programming skills
before attempting to write any programs.
Description
The Bird 4421 IEEE-488 (GPIB) interface has an eight-position DIP switch that sets operational conditions and
interface addresses. The bottom line of the display indicates the current bus status.
Cable Connector
The interface uses a standard IEEE-488 cable connector. Pin assignments are listed in
Table 3
.
Table 3 IEEE-488 Pin Assignments
CAUTION
During remote operation, periodically monitor the bus
service request line. Failure to detect a service request
could result in equipment damage.
Pin Designation Type
1 D101 Data
2 D102 Data
3 D103 Data
4 D104 Data
5 EOI Management
6 DAV Handshake
7 NRFD Handshake
8 NDAC Handshake
9 IFC Management
10 SRQ Management
11 ATN Management
12 SHIELD Ground
13 D105 Data
14 D106 Data
15 D107 Data
16 D108 Data
17 REN Management
18 GROUND Ground
19 GROUND Ground
20 GROUND Ground
21 GROUND Ground
22 GROUND Ground
23 GROUND Ground
24 GROUND, LOGIC Ground
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