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12 Agilent 34937A-34939A General Purpose Switch Modules User’s Guide
34939A 64-Channel High-Density Form-A GP Switch Module
34939A 64-Channel High-Density Form-A GP Switch Module
The 34939A high-density GP switch module provides sixty-four 1 A Form
A (SPST) relays for general purpose switching needs. You can set the
power-failure state for these relays (see “Hardware Power-Fail Jumper” on
page 2).
34939A Simplified Schematic
NOTE
A temperature sensor on these modules triggers system interrupts
when high-carry current-induced heat on the modules reaches a
threshold of 70
o
C. See description of the “HOT” annunciator on
page 2.
COM
Channel 064
(1A Form A)
NO
COM
Channel 001
(1A Form A)
NO