Talkers, Listeners, And Controllers; Gpib Cable Connections; The Gpib Connector; Figure 4.1 Gpib Cable Connections - ILX Lightwave LDX-36000 Series User Manual

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C H A P T E R

Talkers, Listeners, and Controllers

Every GPIB system consists of one or more "talkers" and "listeners", and often at
least one "controller". Talkers supply data. Listeners accept data. A system can
consist of simply a talker and listener, for example a meter connected to a
datalogger or chart recorder. Controllers designate talkers and listeners. A
controller is necessary when the active talkers or listeners must be changed.
When the controller is a computer, it often also designates itself as a listener so it
can collect data from designated talkers.
If there is more than one controller, only one can be the Controller In Charge
(CIC). Control can be passed from one computer to another. In a multiple
controller system, there can be one "System Controller" capable of asserting
control (becoming CIC).

GPIB Cable Connections

Standard GPIB connectors can be connected together (stacked) allowing the
system to be configured linearly, or in a star configuration.

The GPIB Connector

The standard GPIB connector consists of 16 signal lines in a 24-pin stackable
connector. The extra pins are used to make twisted pairs with several of the lines.
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 LDX-36000 Series
R E M O T E O P E R A T I O N
Basic GPIB Concepts

Figure 4.1 GPIB Cable Connections