Clear-Com CellCom Battery Pack Charger - Manual (Page 146)

Clear-Com Communication Systems
CellCom V2.0.3 Instruction Manual
9 - 2
WIRING THE ANTENNAS AND SPLITTERS
To wire antennas and splitters:
1. Run 4-pair CAT-5 cable from the CellCom basestation to the
antenna or splitter, and determine that the antenna or splitter is
showing both power (green LED lit) and signal (yellow LED lit when
the basestation is on).
Note: To meet FCC emissions requirements, a ferrite must be
fitted on any CAT-5 cable plugged into either of the two
ports labeled “transceivers.” The ferrite should be fitted at
the basestation end of the CAT-5 cable. Position the ferrite
as close to the basestation as possible.
The manufacturer of the ferrite is Wurth Elektronix. The part
number is 742 711 32.
Note: It is recommended that shielded CAT-5 cable is used.
2. Run 4-pair CAT-5 cable from the splitter to each of the
transceiver/antennas.
3. Make sure that the local power supplies are plugged into the
antennas, unless they are close enough to the basestation to draw
power from the attached CAT-5 cable.
The indication that a transceiver/antenna has sufficient power from the
cable is if the green power LED and the yellow data LED light up. If
there are several longer runs and the transceiver/antennas are being
powered from the basestation / splitter connection, check each one
again when the are all connected. The local powering for the CEL-TA
is recommended in most cases to provide the most reliable long-term
CellCom installation.
Note that 4-pair CAT5 cable with RJ-45 connectors on each end is
specified for connection between the basestation and the
transceiver/antennas. Use of other cable can result in markedly shorter
distances of cable runs and other possibly other performance
problems.
During the initial system setup, before walking through the system with
a beltpack to check for gaps in coverage, it is wise to avoid
“permanently” installing the transceiver/antennas. Hold them in place
in some temporary way until their optimal position is determined.
DETERMINING COVERAGE AREAS
After the transceiver/antennas and splitters have been initially set up
proceed to test the coverage areas and re-locate antennas and
splitters, if necessary, for optimal coverage.
To determine coverage areas:
1. Once the basestation, splitter(s), and transceiver/antennas have
been placed and wired, turn on a CellCom beltpack (assuming that it
Note: To meet FCC
emissions requirements
a ferrite must be fitted
on any CAT-5 cable
plugged into either of
the two ports labeled
“transceivers.” The
ferrite should be fitted at
the basestation end of
the CAT-5 cable.
Position the ferrite as
close to the basestation
as possible.
The manufacturer of a
suitable ferrite is Wurth
Elektronix. The part
number is 742 711 32.