Agilent Technologies 34937A, 34939A manual Open, Power Down State

WA R N I N G

Operating Considerations.

The jumpers are positionable across pins 1–2 (“Open” position) or across pins 2–3 (“Maintain” position). When shipped from the factory, the power- fail jumper is in the Maintain position (i.e. all relays maintain their present state when power fails).

Before changing the position of the jumper, remove external connections from the module. Wait five to ten seconds to allow the module’s internal capacitors to discharge.

After a five- to ten- second delay, remove the sheet metal cover from the module and move the position of the jumper mounted on the module. See the figure below for the jumper’s location on the module.

Open	1	1
	2	2		Maintain
	3
			3
Power Down State

U205
U301	C301

Agilent 34937A-34939A General Purpose Switch Modules User’s Guide 3