Clear-Com CellCom Battery Pack Charger - Manual (Page 139)

Clear-Com Communication Systems
CellCom V2.0.3 Instruction Manual
8 - 3
of 4-pair 24 AWG CAT-5 cable can be used for this connection
between basestation and transceiver/antenna. If 26 AWG CAT5 cable
is used the maximum distance is 500 meters.
Power LED
This green LED indicates that the transceiver/antenna is receiving
power, either from its local power supply or from the connected CAT-5
cable (distances up to 300 meters, or 925 feet, from the basestation or
the splitter) being powered via the CellCom basestation.
DC In Power Connector
This connector is used to locally power the transceiver/antenna with
the supplied universal power supply. Use of local power is required
when the transceiver/antenna is located more than 300 meters (925
feet) from the CellCom basestation or the splitter, and is recommended
even when the transceiver/antenna is closer whenever it is available
and convenient.
CABLING THE CEL-TA TRANSCEIVER/ANTENNAS
Each CellCom transceiver/antenna receives its necessary data and
digital communications audio via a direct connection with the
basestation transceiver ports. Between these two ports, up to 10
transceiver/antennas can be supported. A transceiver/antenna may
either be directly connected to a basestation port using 4-pair CAT-5
data cable with RJ-45 connectors on each end, or it may be connected
to the basestation through an antenna splitter.
BELTPACK SUPPORT CAPACITIES FOR TRANS-
CEIVER/ANTENNAS
Each transceiver/antenna can support five beltpacks within one
coverage zone. With the supplied omnidirectional antennas, the
coverage pattern is circular or donut-shaped, with a maximum range of
up to 250 meters (800 feet), but with typical range between 50 meters
and 150 meters – depending on the environment in which it is installed.
When designing the system, determine how many beltpack users will
be in or passing through a given coverage zone. If it will be five or
fewer users, then place one transceiver/antenna in the center of that
area. If it is between 6 and 10 users, place two transceiver/antennas
next to each other, both with a direct connection to the CellCom
basestation or splitter. In larger systems – approaching 20 beltpacks –
it is wiser to allow one transceiver/antenna for every 3 to 4 users to
ensure smooth handoffs between transceiver/antennas. It is good
practice to have each beltpack “seeing” two or more antennas, so a
minimum of two antennas in any system is to be considered.
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