User's Manual

CI Wireless Inc.
1211 Ira E. Woods Ave., Grapevine, TX 76051
17
5.4
Duplexer
The duplexer couples the down link transmitted signals and the up link received
signals to a common antenna output which allow band selective or full band
system operation.
5.5
Lightning Arrestor (optional)
The lightning arrestor is to provide maximum protection from the environment.
Throughput energy
≤
0.5
µ
J (8/20
µ
s at 3kA). DC blocked for maximum
equipment protection. N/female connection to the RF input/output.
5.6
Multi-Carrier Feed Forward Amplifier (800 MHz High Power Remotes)
MCA amplifiers are supplied in the ESMR/IDEN 800 MHz and Cellular High
Power Remotes. Both are feed forward amplifiers units allowing composite
powers of up to 50 watts. Mannual located in Components Section.
5.7
Remote Control Interface Module (High Power)
The Microcell (Remote) Control interface module provides circuits to set units’
address and calibration controls for RF power and down link RF and optical loss.
In addition, it provides the down link power control attenuator for adjusting the
output to the desired power level. The controller also monitors the enclosure
ambient temperature and provides electronic compensation for low temperature
operation if required. The DC to DC converter provides +5 VDC and –5 VDC
for operation of the laser modules, and a 28 to 12 VDC converter. DC
distribution to the controller, optical receiver, optical transmitter, and RF modem
is provided via this interface module.
5.8
Power Supply for High Power Remotes (27 VDC)
Kepco Model HSM 28-36, manual in Components Section.