User Manual

System Description NOTCHCELL Repeater
4.4 Repeater Setup
The repeater parameters can be set locally by means of a desktop or notebook running OMT. The PC is
connected to the ARCU via the RS-232 PC port.
* Option (Bluetooth Adapter): When it is used, it enables wireless integration
5 Board and Unit Descriptions
5.1 MCPA for downlink
Output
Delay Line
Delay Line
DEMOD
PLO
1st Loop Pwr
Sampling Port
IN D E T .
Input
IN A TT
E rro r A M P
M a in A M PDrive A M P
Pre AMP
2nd loop1st loop
Vector Modulator
Controller
&
Interface
Figure 16 Block diagram of Power Amplifier unit for downlink
MCPA amplifies RF signal received from UDC (Downlink) up to 50 dB and its Maximum RF input is 42 dBm in
terms of CDMA SFA standards.
Connection
Port Connected to
RF IN RF OUT on the UDC-DL board.
RF OUT DL on the DPX-MS duplex filter.
CON On the ARCU board
CON 27V port on the PSU unit
Specification
Item Specification Remarks
Frequency 1950MHz~1965MHz
Bandwidth 15MHz
Gain
50
± 0.5dB
Output Power 45dBm (32W)
I/O Port 1: GND 2: Over Power Alarm
3: VSWR Alarm 5: Over Temp
6: PA On/Off 7: Cable Open
Normal: Low
Fail: High
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