© National Instruments Corporation
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GPIB-130 User Man ual
Chapter 1
Introduction
This chapter contains a description of the GPIB-130, lists the contents of your GPIB-130 kit, lists
optional equipment, and explains how to unpack the GPIB-130.
The GPIB-130 is a high-speed bus extender with the following features:
•
It extends the maximum GPIB cable length to 300 m.
•
It expands the GPIB to interface up to 28 devices.
•
It performs high-speed parallel transmissions, with rates up to 900 kbytes/sec.
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It has a switch to select buffered transfers for high performance or normal GPIB transfers
with interlocked handshaking.
•
It has a switch to select immediate parallel poll mode, for cable lengths of 60 m or less, or
stored parallel poll mode, for longer distances.
Description of the GPIB-130
The high-speed GPIB-130 bus extender (shown in Figure 1-1) is used in pairs with a special
parallel data transmission cable to connect two separate GPIB (IEEE 488) bus systems in a
functionally transparent manner.
Figure 1-1. The Model GPIB-130 Bus Extender