Clear-Com CELLCOM 10, Instruction Manual

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Vitec Group Communications
CellCom-10 Instruction Manual 4 - 1 5
wireless beltpacks in the vicinity of the active transceiver/antenna will
be connected to the system and their displays will show labels and
other information.
Using both transceiver ports, a base station may be connected with up
to two transceiver/antennas via a direct connection with the base. For
the best, most reliable coverage, it is advisable to use a minimum of
two transceiver/antennas in any installation, positioned in different
locations in the coverage area. When more CEL-TA’s are required to
support a larger coverage area or more wireless beltpacks, an antenna
splitter will need to be introduced between the base station and the
transceiver/antennas.
Note: In some situations, particularly in outdoor venues,
interference from non-DECT sources can severely reduce
the range of the system. In these cases we recommend a
site survey as described in Chapter 8, “Installing a System.”
CONNECTING TRANSCEIVER/ANTENNAS WITH A
SPLITTER (CEL-SP)
A splitter (CEL-SP) will connect up to five transceiver/antennas to one
of the transceiver ports on the CellCom 10 base station, creating up to
five coverage zones that can be overlapped to make large areas
where CEL-BP wireless beltpacks can have continuous coverage. The
use of the splitter also extends the distance that the CEL-TA
transceiver antennas can be located from the base to 2,000 meters
(6,400 feet) if 24AWG cable is used or 1,000 meters (3,200 feet) if
26AWG cable is used (assuming the same cable type is used to
connect the antenna to the splitter and the splitter to the base station).
Note: It is recommended that shielded CAT-5 cable is used.
For example, a splitter can be used to connect to a CellCom 10 base
that is located in a production truck outside an arena or stadium, with a
single CAT-5 cable going to the splitter which is then located just inside
the stadium. From that splitter, up to five CEL-TA transceiver/antennas
are distributed throughout the stadium to create wide coverage – each
with a run of CAT-5 cable back to the splitter. A similar arrangement
may be used in a large theatre or performing arts facility.
The connection between a transceiver port on the CellCom 10 base
station and a CEL-SP splitter is accomplished with standard 4-pair
CAT-5 data cable with RJ-45 connectors. It is connected to the port
labeled MATRIX on the splitter. This cable can be as long as 1,000
meters (3,200 feet) if 24AWG cable is used or 500 meters (1,600 feet)
if 26AWG cable is used. The splitter must be locally powered via its DC
IN connector, using the in-line external universal power supply. The
RJ-45 ports on the splitter labeled “1” through “5” are the connections
to the CEL-TA transceiver/antennas. Transceiver/antennas connected
to the splitter can be powered at a distance of up to 300 meters (900
feet); beyond that distance they will need to be locally powered.