R&S UPZ
Manual Operation
Operating the R&S UPZ from the R&S UPV
Operating Manual 1120.8610.14 - 0
5
45
Example:
Busbar B of the input switcher (address 0) is connected to input
4
and busbar A to
2
. If
4
is entered for busbar A, the direction is from bottom to top (towards higher numbers).
The R&S UPV thus changes the entry to
5
. If busbar A is to be connected to input
4
, B
should be previously set to another channel.
If busbar A had previously been on No.
6
, the R&S UPV would have changed the entry
to
3
. This means that the activated channel of the other busbar is always skipped by
1
.
This skip function is also available when the instrument is operated by means of the
rollkey.
If a suitable setup is available, channel numbers from 0 to 128 are permissible. Either
all 15 switcher addresses are occupied or the suitable R&S UPZ address has to be set
at the coding switch for entering higher channel numbers.
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 UPV generates an error message, for example:
Fig. 2-19 Error Message: R&S UPV
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 UPV 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 next figure, 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 UPV (due to the channel offset). There are three possibilities:
●
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
