Agilent Technologies E1472A, Руководство пользователя

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Getting Started 13
Chapter 1
Programming the RF Multiplexers
To program the RF Multiplexers using SCPI, you must select the controller
language, interface address, and SCPI commands to be used. Guidelines to
select SCPI commands for the RF Multiplexers follow. See the specific
command module manual for interface addressing and controller language
information.
NOTE
This discussion applies to SCPI programming. See Appendix B for details
on programming RF Multiplexer registers.
Addressing the
Multiplexers
To address specific channels within an RF Multiplexer, you must specify
the SCPI command and RF Multiplexer channel address. For the RF
Multiplexer, use CLOSe (channel_list) to switch (connect) channels.
RF Multiplexer Channel
Addresses
For the RF Multiplexer, the channel address (channel_list) has the form
(@ccmmnn) where cc = RF Multiplexer card number (01-99), mm = RF
Multiplexer/Expander module number (00-02), and nn = channel number
(00-03, 10-13, 20-23, 30-33, 40-43, or 50-53). Use the form:
•
(@ccmmnn) for a single channel
•
(@ccmmnn,ccmmnn) for multiple channels
RF Multiplexer Card
Numbers
The RF Multiplexer card number depends on the switchbox configuration
(single-module or multiple-module) set for the RF Multiplexers. (Leading
zeroes can be ignored for the card number.)
NOTE
The Expander module(s) card number is the same as the RF Multiplexer to
which it is connected.
•
Single-module
. For a single-module switchbox, the card number is
always 01.
•
Multiple-module.
For a multiple-module switchbox, the RF
Multiplexer module with the lowest logical address is always card
number 01. The card number with the next successive logical
address is 02, etc.
Figure 1-2 illustrates the card numbers and logical addresses of a typical
multiple-module switchbox. The logical addresses in Figure 1-2 apply to RF
Multiplexers installed in a VXI mainframe with a command module. See your
specific command module manual for more information on switchboxes and
logical addressing. For uses in other systems or mainframes, see the
appropriate manuals.
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