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Typical switch configurations – Agilent Technologies 75000 SERIES B User Manual

Page 22

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Typical Switch Configurations

Typical Form C Switch configurations are:

General purpose relay

Relay control

Digital output

General Purpose

Relay Configuration

As factory configured, the Form C Switch is set for general purpose relay
configuration. For this configuration, you can switch channels by opening or
closing channel relays or you can scan a set of channels.

Example: General

Purpose Relay

Configuration

Figure 2-3 shows a typical general purpose relay configuration for channel
00. When the relay is open, the NC terminal is connected to the C terminal
and Load 1 is connected. When the relay is closed, the NO terminal is
connected to the C terminal and Load 2 is connected.

Relay Control

Configuration

By connecting jumpers, you can use the Form C Switch to drive (control)
external relays. The source can be +5V/NO, +5V/NC, +12V/NO, or
+12V/NC depending on the jumpers connected on the switch. (See Figure
1-1 in Chapter 1 for jumper numbers and see Figure 2-6 for jumper
locations.)

Note

When connecting the +5V or +12V backplane sources, the total current
draw should not exceed 1 A per Form C Switch for the +5V supply or 0.5 A
per Form C Switch for the +12V supply. You should fuse all external
equipment to ensure excess current is not drawn.

Figure 2-3. Example: General Purpose Relay Configuration

20 Configuring the Agilent E1364A Form C Switch

Chapter 2