User Manual

Confidential, Proprietary Information
Title: PCS FlexBeamer
®
RF Repeater
System A &O Manual
Doc. No.:
913002500
Rev.: 00
Page: 17 of
80NUMPAGES
Distribution Ant enna
BEAMER
L.A
L.A
L.A
L.A
PCS FlexBeam er
L.A
Donor
Antenna
BAU
Duplex er
RAC
BTS
Tx/ Rx
FOR INTERNAL USE ONLY
PCS - Channelized RF Repeater
With D.L and U.L Divesity
Rev. :0.6 MAY 26, 2002
BEAMER
BEAMER
L.A
Duplex er Duplex er
2690002
2690002
2690002
2690002
2690002
2690002
Lap Top
Duplex er
CDMA
PCS ph one
(QCP-1960)
Control Card
I CU OR MPI B
Power Supp ly
220 110 VAC
to 24VDC
22 0 / 11 0 VAC
24VDC
RS-4 85
RS- 232
ABT Tx- Ty peC
ABT Rx-Type B
UL Mai n
UL Diver sity
DL Mai n
DL Dive rsity
Batter y
Charger
ABT Rx-Type B
ABT Tx-Typ e C
Atten uator
Atten uator
ABT Tx-Typ e C
ABT Tx- Ty pe A
UP-LINK
PMDU
ADU
DOWN-LI NK
17
3
3
17
17
-6
-0. 5 + 22
-3. 5
20dB
30dB
20 dB
30dB
UL
CHANNEL
FI LTER
1:2
DI VIDER
DL
CHANNEL
FI LTER
1:2
DI VIDER
+ 22
Figure 4: 2x4W RF FLEXBEAMER® Repeater Block Diagram
(*L.A.- Lightning Arresters are an option)
The RF channels of the FLEXBEAMER® Repeater are built of Separate Down and Up links built of
Tx and Rx ABT and a BEAMER
®
module. The RAC is equipped with Four to Six Micro Rx ABTs
and Micro Tx ABTs. Each of the Micro ABTs can be one of several types, which differ in the
available gain from –4 db to +30db. In the above block diagram a full 95db Max. Gain on both
channels Repeater is presented.
The Bias-Ts serve Three purposes:
1. Supply DC voltage to the BEAMER
®
modules within the FLEXBEAMER® and the BAU.
2. Provide Gain controlled RF amplification stage for setting up the levels and compensate for the
cables losses possible RF losses and to maintain the necessary level of the transmitted or received
output power per sub-array.
3. Connect the BEAMER
®
modules Telemetry to the RAC controller via the superimposed FSK
link.