Clear-Com CellCom Battery Pack Charger - Manual (Page 109)

Clear-Com Communication Systems
CellCom V2.0.3 Instruction Manual
6 - 9
Figure 6-6: Battery Discharge Characteristics
The beltpack front-panel display has an icon that shows the battery
condition. It has five vertical bars to signify the remaining charge, each
bar representing 20% of battery capacity. When the icon has dropped
down to the last two bars, or if it drops quickly after being turned on
after previous use, it will be time in the next few minutes to recharge
the batteries (if rechargeable ones are being used) or replace them.
The beltpack will turn off by itself at low battery levels.
The length of operational time represented by each bar will depend on
how the beltpack is being used. For example, if the beltpack is
receiving a large number of calls with the vibrate call alert enabled this
will consume more power than if the beltpack is switched on but not
making or receiving many calls. The battery indicator will however
give a visible indication of how rapidly the batteries are discharging.
Within the menu structure of the beltpack, a low-battery alarm is
available and may be set. When activated and when the battery level is
below the user configurable alarm threshold the headset user will hear
a beep at intervals and the battery indicator will flash to indicate that
the batteries must be replaced or recharged soon. This setting is
available under Alarm Options. The alarm will also be displayed on the
basestation battery monitor.
The CellCom beltpack features an internal battery charger circuit, with
intelligent circuitry to prevent overcharging. It is powered via the pin
connector on the bottom of the beltpack, using the supplied universal
power supply. A thermistor (temperature-sensing device) measures
the change in temperature of the battery when charging, letting the
circuit know when to cease charging the batteries.
Spare clips of four batteries are available by contacting the Sales
Department.
REGISTERING BELTPACKS WITH THE BASESTA-
TION
The PC-to-Beltpack serial cable is used to upgrade the firmware of the
beltpacks and to register beltpacks using the Cellcom Configuration
Editor.
For instructions on registering beltpacks with the basestation, and for
upgrading the firmware, see the chapter “Cellcom Configuration
Editor”.
The cable consists of a female 9-pin D type connector (PC connection)
and a 3.5 mm (1.8-inch) stereo jack plug (beltpack connection). Care
must be taken to select a jack plug that fits completely through the
plastic surround of the connector at the bottom of the beltpack.
The data connections between the D connector and the stereo jack
plug are as follows: pin 2 to tip, pin 3 to ring, and pin 5 to sleeve. Pins