User Manual

System Description NOTCHCELL Repeater
R-TRON Proprietary & Confidential Page 16
4 Block Diagram
The main signal paths are described in general in the next section and detailed under each block diagram.
4.1 Downlink signal path
The downlink signal path, i.e. from the base station through the repeater to the mobile station, is described for
NOTCHCELL repeater under the block diagrams on the following pages.
4.2 Uplink signal path
The uplink signal path, i.e. from the mobile station through the repeater to the base station, is identical to the
downlink path but the other way round. Only some levels and component values differ.
4.3 Band Selective Repeater
Figure 15 Block Diagram of Band Selective Repeater
Figure 15 shows a block diagram of a band selective repeater. This diagram is applicable to repeaters for CDMA
systems.
LNA / UL
Duplexer
/MS
Controller
Wireless
Modem
(Option)
PSU Box
PA / DL
AC
Input
RS-232C
Repeater State LED
:Data
:Power
12V
12V
12V
12V
12 V
27V
27 V
LNA / DL
ATT 1 ATT 2
U D C / DL
ATT 1ATT 2
PA / UL
UDC / UL
DL -30dB Test Port
Arrester
Distributor
ANT
External Alarm
Main Box
Battery Box
(24V, Option)
EMI/EMC
FILTER
PSU
Bluetooth
(Option)
-20 dB
Directional Coupler
Arrester
Donor
ANT
12 V
RCU
LNA / UL
Duplexer
/MS
Controller
Wireless
Modem
(Option)
PSU Box
Duplexer
/BS
PA / DL
AC
Input
RS-232C
Repeater State LED
:Data
:Power
12V
12V
12V
12V
12 V
27V
27 V
LNA / DL
ATT 1 ATT 2
U D C / DL
ATT 1ATT 2
PA / UL
UDC / UL
ATT 1 ATT 2
U D C / DL
ATT 1ATT 2
PA / UL
UDC / UL
DL -30dB Test Port
Arrester
Distributor
ANT
Distributor
ANT
External Alarm
Battery Box
(24V, Option)
EMI/EMC
FILTER
EMI/EMC
FILTER
PSU
Bluetooth
(Option)
-dB
Directional CouplerDirectional Coupler
Arrester
Donor
ANT
BTS
12 V
RCU
UL-30dB Test Port