R&S UPZ
Manual Operation
Link Establishment using an R&S UPV and RS232
Operating Manual 1120.8610.14 - 0
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2.8 Link Establishment using an R&S UPV and RS232
When using a RS232 connection, this choice is not offered. COM1 will be used always.
In both cases, a connection is established by selecting the Switcher checkbox.
Fig. 2-15 Switcher Connection Establishment: R&S UPV
After a successful connection the following choices are offered:
Fig. 2-16 Switcher Panel: R&S UPV
The window shown here provides all control possibilities. This requires that at least one
input and one output switcher are connected. Otherwise, only the lines relating to the
connected switcher are displayed (the corresponding lines of an output switcher are
not displayed if none is connected, for example).
After opening the switcher user interface, the link between all switchers connected is
established. This operation is performed as follows:
First of all, the R&S UPV searches all addresses from 0 to 15 for a R&S UPZ
connected. Each address is queried twice, first for a connected input switcher, then for
a connected output switcher.
Since the response of the R&S UPZ is relatively short, the address query is executed
very quickly. This query is the only operation in which a R&S UPZ responds. If the
R&S UPV sends a channel setting command, the desired setting is performed in the
switcher addressed by the channel number whereas all other R&S UPZ open their
relays. The R&S UPZ, however, return no acknowledgement. As a result, the reaction
to a setting command is always performed at the same speed regardless of whether
only one or up to 32 switchers are connected.
The R&S UPV cannot recognize if two or more switchers are set inadvertently to the
same address. It "sees" only one R&S UPZ at the address concerned because the
switchers respond to the query practically at the same time. This means that two or
more switchers set the same channel. With input switchers, this may cause problems
with the generators connected.
