Racal Instruments 1260-38T, User Manual

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1260-38T User Manual
Racal Instruments © 1998 Module Specification 1-1
Chapter 1
MODULE SPECIFICATION
Introduction The 1260-38T 1 x 128 Two-Wire Scanner/Multiplexer Module
consists of eight pairs of 1 x 8 multiplexers. These eight pairs of
multiplexers, in conjunction with interconnecting relays, allow the
1260-38T module to be configured as:
- One 1 x 64 Four-wire multiplexer
- One 1 x 128 Two-wire multiplexer
In addition, each pair of 1 x 8 multiplexers can be independently
configured as:
- Two 1 x 8 Two-wire multiplexers
- One 1 x 16 Two-wire multiplexer
- One 1 x 8 Four-wire multiplexer
Figure 3-1, 1260-38 Module Configuration Block Diagram, and
Figure 3-2, 1260-38 Multiplexer Configuration Block Diagram,
shows a diagrammatic representation of the switch module and
multiplexer pair, respectively.
Figure 1-1, 1260-38T Multiplexer / Scanner