Agilent Technologies 34939A - Manual (Page 15)

34938A 20-Channel High-Current GP Switch Module
Agilent 34937A-34939A General Purpose Switch Modules User’s Guide 9
34938A 20-Channel High-Current GP Switch Module
The 34938A high- current GP switch module provides twenty 5 A Form A
(SPST) relays for general purpose switching needs. You can set the
power- failure state for these 5 A relays (see
“Hardware Power- Fail
Jumper” on page 2).
34938A 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 020
(5A Form A)
NO
COM
Channel 001
(5A Form A)
NO