R&S UPZ
Manual Operation
Operating the R&S UPZ from the R&S UPL
Operating Manual 1120.8610.14 - 0
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Channel number 0 means that all channels of all the switchers connected are opened.
The output switcher has a special feature as regards busbar B: It is possible to enter
–
1
as channel number. In this case,
all
channels of
all
switchers connected are closed
in busbar B, except the channel selected in busbar A. This setting is useful for worst-
case crosstalk measurements. If no channel is selected in busbar A (number 0), all
channels are closed in busbar B. This setting can be used to supply all DUTs
connected with signals for burn-in tests.
If the user enters a channel number, which corresponds to a R&S UPZ at a non-
assigned address, the R&S UPL generates an error message, for example:
Fig. 2-5 Error Message: R&S UPL
This error message can be acknowledged by pressing the ENTER key or turning the
rollkey by one step. Although the switcher is not connected, the R&S UPL sends the
entered channel command and updates the display. As regards the R&S UPZ
connected, this causes the previously set channel to be opened.
As shown in
, the different channels can be changed together. This is called
tracking. The user can thus select a channel offset between the two busbars or input
and output switcher. If a line is operated, the other one/ones are automatically adapted
by the R&S UPL (due to the channel offset). There are three possibilities (see
●
Tracking only between busbars A and B (tracking between A and B equally applies
to input and output switchers connected)
Application: measurements on multichannel DUTs
●
Tracking between input and output switcher
Application: crosstalk measurements in the adjacent channel
●
Combination of the two tracking modes
Fig. 2-6 Tracking selection: R&S UPL
