Controlling More Than One Interface; Configuration Requirements; Figure 1-2. Example Of Multiboard System Configuration - National Instruments NI-488.2 User Manual

Chapter 1 Introduction

Controlling More Than One Interface

One
GPIB
Another
GPIB

Configuration Requirements

NI-488.2 User Manual for Windows
Figure 1-2 shows an example of a multiboard system configuration.
is the access interface for the voltmeter, and
for the plotter and printer. The control functions of the devices
automatically access their respective interfaces.
Digital
Voltometer
Plotter
Printer

Figure 1-2. Example of Multiboard System Configuration

To achieve the high data transfer rate that the GPIB was designed for,
you must limit the number of devices on the bus and the physical distance
between devices. The following restrictions are typical:
• A maximum separation of 4 m between any two devices and an
average separation of 2 m over the entire bus.
• A maximum total cable length of 20 m.
• A maximum of 15 devices connected to each bus, with at least
two-thirds powered on.
gpib0
gpib1
1-2
is the access interface
gpib1
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gpib0