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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
N O T E
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