Agilent Technologies 34937A manual 34939A 64-Channel High-Density Form-A GP Switch Module

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).

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 oC. See description of the “HOT” annunciator on
	page 2.

34939A Simplified Schematic

NO	Channel 001
COM	(1A Form A)

NO	Channel 064
COM	(1A Form A)

12 Agilent 34937A-34939A General Purpose Switch Modules User’s Guide