User Manual

Channel Selective High Power CDMA Repeater
A cabinet (the left part in Figure 5-3) for a channel selective high power
CDMA repeater can be equipped with two pair of CSA and PA boards, one
pair for downlink (DL) and one pair for uplink (UL). The described
cabinet has a capacity of two bi-directional CDMA carriers.
The cover (the right part in Figure 5-3) is equipped with the BA board.
There is also a heat sink element on the outside of the cover, not shown
in Figure 5-3.
Note that this repeater type has opposed positions of the BS and MS
antenna inputs and DC units compared to all the other repeater types.
CSA boards are used for IS-95 or J-STD-008 types of CDMA systems.
Main units: ALI Alarm Interface board
BA Booster Amplifier board
CSA Channel Selective Amplifier board, CDMA type
CU Control Unit board
DC Directional Coupler
DPX Duplex filter
LNA Low Noise Amplifier
PA Power Amplifier board
PSU1,2 Power Supply Unit 1 and 2
123 4
567 8
CSA
DL
(2 carr.)
BS
Base station
antenna
MS
Mobile station
antenna
PA
DL
CSA
UL
(2 carr.)
PA
UL
LNA DL
Downlink
LNA UL
Uplink
DPX
BS
DC
BS
CU
ALI
DC
MS
DPX
MS
PSU1
BA
DL
PSU2
Figure 5-3. High power CDMA repeater
Functional Description AR Repeaters ALLGON System AB
5 - 6 Rev. P1A 2000-09 User’s Manual VD203 66/EN