USL UPC-28C - Manual (Page 13)

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UPC-28C Instruction Manual Ultra Stereo Labs, Inc.
Two or more IRC-28C panels may be cascaded to provide adequate coverage
for a very large auditorium. In such a case, one IRC-28C panel becomes the
master source with normal audio input(s), level settings and Ethernet connection.
An RF feed from the master panel is carried by a 75 ohm coaxial cable (RG-59/U
or similar) to the first slave panel (RF Out of the master drives RF In of the slave).
The first slave panel then drives the second slave panel, etc. Each panel must
be driven by its own power supply. When a channel on the master panel shuts
down due to lack of audio, transmission of that channel also ceases on all slave
panels. The full power of the master and slave panels is devoted to active audio
and captioning channels. If no channels are active, all transmissions cease, sav-
ing power and increasing the IR LED life.
Installation Using Two UPC-28Cs
Mount additional slave panels adjacent to the master panel. Long coaxial cable
runs may introduce sufficient phase delay to cause signals to cancel instead of
add. IRC-28 panels may be slaves to an IRC-28C master. If IRC-28C panels are
used as slaves, make sure IR caption carrier is set to “off” on slave panels.
Cinema Processor
HI / VI - N Out
At times, it can be difficult to determine the IP address of the IRC-28C. You can
use the Ethernet Discoverer on the USL website to determine the IP address of the
IRC-28C. Clicking on the text line for the caption encoder in the Ethernet Discov-
erer window will open a web browser pointing to that IP address. If the IP address
is on the same subnet as your computer, you should see the opening page of the
caption encoder.
Finding The Box
TROUBLESHOOTING