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4
Introduction to Programming
Agilent 87222 Series and L7222C Switches
The Agilent 87222 series and L7222C switches are supported on the following
distribution board:
• Y1154A
The bank diagram applies to both types of switches and is shown in Figure
4-14. In this example, the 34945A is in 34980A slot 1.
Presetting the Bank
In order to preset the banks on the 34945EXT module (the programming of any
switch or attenuator must begin with the preset state), '
ure 4-2) must be selected and the module's channel drive must be off (Config-
ure Module... button).
To set the preset values for the 87222 series, the L7222C, and the N181x series
switches (Figure 4-14), select '
All switches supported on these distribution boards have the same preset
settings. Presetting the bank is equivalent to sending the SCPI commands
shown, or to configuring the switches to the settings indicated in the bank,
module, and channel configuration windows.
Changing Settings and Enabling the Channel Drive
Following the preset, use the bank configuration and channel configuration
windows (Figure 4-14) to change the preset settings as required. The SCPI
Command Interface window can also be used to send commands to the
instrument.
When complete, use the module configuration window to enable the channel
drive. (If using more than one 34945EXT, the channel drive source must be set
to EXTernal for all 34945EXT modules other than the master.) Use the bank
diagram to control (open/close) the switches (see "Y1154A Switch Control" in
Chapter 5 for more information).
Settings (commands) from any of these sources can be logged for transfer
to other programming environments (see "Logging SCPI Commands").
80
- 87222 series, L7222C
- N181x series
Agilent 34945A Microwave Switch/Attenuator Driver Module User's Guide
(two switches)
(six switches)
Preset Bank
' in the Bank Configuration window.
Allow Full Control
' (Fig-
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