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Chapter 7 Plug-in Modules
44471A 10-Channel GP Relay Module
4
7
Custom Signal Conditioning
The 44471A circuit board has a provision to allow you to install simple
attenuators or filters in the relay paths. There is also a place to install
relay contact protection networks. The figure below shows the locations
on the main circuit board.
Protection Networks An RC protection network and a varistor can be
installed in each relay path. More detailed information about protection
circuits is given on page 272.
HIGH SERIES
LOW SERIES
SHUNT
PROTECTION
NETWORK
TERMINAL
BLOCK
RELAY
CONTACT
RC
NETWORK
VARISTOR
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