Keysight Technologies L4490A, User Manual

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Keysight L4490A/L4491A User’s Guide 115
Introduction to Programming
Keysight 876x Series and U9397A/C Switches
The Keysight 876x series and U9397A/C switches are supported on the following
distribution board:
- Y1155A
- 8762/8763/8764/8765 series (eight switches)
- 8766/8767 K series (two switches)
- 8768/8769 K series (one switch)
- U9397A/C (sixteen switches)
The bank diagram applies to all series of switches. The diagram is shown in
Figure 4-15.
Presetting the Bank
In order to preset any of the banks on the 34945EXT module (the programming of
any switch or attenuator must begin with the preset state), ‘
Allow Full Control
’
(Figure 4-2) must be selected and the module’s channel drive must be off
(Configure Module... button).
To set the preset values for the 876x series and U9397A/C switches (Figure
4-15), select ‘
Preset Bank
’ in the Bank Configuration window. All switches
supported on this distribution board 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 Source
Following the preset, use the bank configuration and channel configuration
windows (Figure 4-15) 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 L4491A Option 002 is installed, the channel drive source must be set to
EXTernal for the second 34945EXT - remote module 2.) Use the bank diagram to
control (open/close) the switches (see “Y1155A 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”).
Using other Keysight Switches with the Y1155A Distribution Board
Any of the Keysight switches and attenuators listed in Table 1-2 can be used with
the Y1155A distribution board. From the SCPI command Interface window, the
preset settings for a given switch or attenuator can be set by sending the
corresponding SCPI command for each preset value.