User`s guide

85
Chapter 3 System Overview
Control Output
3
The Actuator / General Purpose Switch
You can think of the 34903A Actuator as a control output because it is
often used to control external power devices. The actuator provides 20
independent, isolated Form C (SPDT) switches.
Each channel can switch up to 300V DC or AC rms. Each switch can also
switch up to 1 A DC or AC rms up to 50 W maximum. For example, the
maximum current that you can switch at 120 V is 0.45 A as shown below.
Channel Open
(NC Contact Connected)
Channel Closed
(NO Contact Connected)
NO = Normally Open
NC = Normally Closed
NO
NC
COM
NO
NC
COM
Voltage
Current
34970A Refresh UG.book Page 85 Wednesday, February 17, 2010 12:34 PM