User's Manual

CI Wireless Inc. 1211 Ira E Woods Ave 14
Tel: [phone] Grapevine, TX 76051
5.9 Power Supplies for 1.9 GHz and 800 MHz
The power supply for the 1.9M (2 watt) units provide 12VDC @ 12.5 amps to
the internal electronics from a primary input power of 100 VAC to 240 VAC at
50 to 60 Hz.
The power supply for the 800M (4-5 watt) units provide 28 VDC @ 10 amps
max and 12 VDC @ 4 amps. It also contains circuitry for DC transfer from main
power to standby DC power plus circuitry for distribution of DC and alarming
control interconnect to other modules. Transfer from main power to standby DC
is included.
The power supply for the 1.9R (8 watt) units provide 12 VDC @ 29 amps max.
It also contains circuitry for DC transfer from main power to standby DC power
plus circuitry for distribution of DC and alarming control interconnect to other
modules. Transfer from main power to standby DC is included.
5.10 Main/Battery Back Up (BBU) Assembly Option
The Main/BBU Assembly provides the transfer of primary power from the AC
power supply output of 12 VDC to the battery back up 13.6 VDC supply should
primary AC power fail. 1.9M (2 watt) units only.
5.11 Fan Control/Alarm Module
The fan control and alarm module provides the control and alarm interface to the
heat exchanger fans and the power amplifier thermal alarm. The module senses
the temperature of the heat sink and activates the heat exchanger fans when the
level rises to a preset level, typically 45 C. The heat exchanger has 3 muffin
fans that are individually controlled and alarmed by the module. Each fans
rotation is monitored, if a fan fails an alarm is sent to the controller for reporting
from the module. A single fan failure will not affect the operation and
performance of the unit. The failed fan will however be shutdown to reduce
current draw. The power amplifier thermal alarm is summed with the fan alarm
on the same analog input to the controller as different voltage levels.
5.12 DC Interface Module
The DC Interface module is used in the 1.9M (2 watt) Remote only. This module
provides DC supply filtering and interconnection to the power supply, BBU DC
input, and DC distribution connection to all other modules in the unit.