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DSPbR Series 

– User’s Manual

 

Document Number 00000.B                                                                                                           Page 11/75 

that the gain through the repeater can be considerably increased and the cell extension afforded greater 
coverage and signal strength. 

 

A useful feature using this technology is the choice of setting receiver gating on a respective channel. This can 
be set to open above a fixed dBm input level, or at a pre-determined level above a dynamic input noise level or 
simply disabled keeping the receiver channel open.      
 
Modulation integrity 
 
The DSPbR does not demodulate the rebroadcast signal and the modulated carrier integrity is left unchanged 
whether encrypted or not, effectively allowing modulation scheme and multiplexing methodology transparency. 
A library of optimised IF Filter profiles ensure low group delay characteristics in digital modulation schemes 
without compromising emission standards.  
  
Web browser configuration and alarm status reporting 
 
Customer specific repeater configuration is possible via the RJ45 IP Ethernet socket connection from either the 
front or rear of the sub rack. This can be achieved either locally with the use of an IP Ethernet jumper cable or 
remotely, having connected the unit into an IP Ethernet network.  
 
Two levels of access are provided, which are user name and password protected. The first elementary level 
provides access to the status screens only. The second level provides access to all screens, which include 
status, configuration, and maintenance screens.  
 
Entering the factory default IP address will bring up a log in screen and once the required level of user name 
and password has been entered, the relevant screens will be accessible.  
 
Configurable channel specific settings include uplink and downlink channels, receive and rebroadcast 
frequencies across band or in-band as required, selecting technology applicable channel bandwidth profiles, 
uplink and downlink RF output power levels, uplink and downlink channel gain and optional styles of receiver 
gating.   
 
Names or references can be allocated to input and output frequencies of the respective uplinks and downlinks. 
 
Frequency Bands 
 
The DSPbR is designed to accommodate any number of selected frequency bands between 400 and 870MHz. 
 
 
 
 

Summary of Contents for DSPbR Series

Page 1: ...Australian Provisional Patent Application No 2009905291 User s Manual Rebroadcast Repeater Booster Base Line release 1 0 DSPbR Series TM...

Page 2: ...u Note Operation of this equipment pursuant to Part 90 of the FCC rules should be identified by selecting Part 90 Operation in the GUI Channel Configuration screen thereby limiting the per channel RF...

Page 3: ...let Module 3 3 2 PSU Power Supply Module 3 3 3 CSC Central System Controller Module 3 3 4 Ref Gen Aux Reference Generator Module 3 3 5 DSP Digital Signal Processor Module 3 3 6 RFFE RF Front End Modul...

Page 4: ...5 4 CSC Module Front Panel LCD Display Mode Buttons and LED s 5 5 Uploading and Downloading Firmware 6 Temperature Management 7 Alarming and Supervision 8 Firmware User s Licence Agreement 9 Maintena...

Page 5: ...Processor DSPbR Digital Signal Processor based Repeater ETSI European Telecommunication Standards Institute GPS Global Positioning System GUI Graphical User Interface IF Intermediate Frequency MS Mobi...

Page 6: ...9 RFFE BPFM Bolted together 10 Bolting RFFE or RFBE onto BPFM 11 Cxxx8 8 Ch Internal Combiner Filter Unit 12 Slot Allocation Architecture 13 DSPbR Dimensions Front View 14 DPSbR Dimensions Rear View...

Page 7: ...stallations as well as regulations covering use of tools and personal protective equipment It is the responsibility of the network operator or service provider to have in place and implemented an appl...

Page 8: ...ortion of the equipment may reach relatively high temperatures Please take the necessary precautions when servicing or removing any RFBE modules filters transmitter combiners or unscrewing any termina...

Page 9: ...buildings large commercial business and retail buildings and shopping centres university campuses airports railways stations and sports stadiums the applications are numerous RF Industry designs and m...

Page 10: ...ssing technology replacing traditional fixed hardware used in IF filtering such as crystal filters with software defined digital filtering providing flexibility and real time optimisation When a migra...

Page 11: ...cket connection from either the front or rear of the sub rack This can be achieved either locally with the use of an IP Ethernet jumper cable or remotely having connected the unit into an IP Ethernet...

Page 12: ...Auxiliary module includes GPS and optional cell modem RFFE RF Front End band specific RFBE RF Back End band specific BPFM Band Pass Filter band specific bolted to input of RFFE and output of RFBE TLM...

Page 13: ...etwork with the cellular modem in a TCP IP session where an IP network is not available on site The DSP module is partitioned into Side A and Side B boards populated according to the number of channel...

Page 14: ...combiner depending on type may be restricted to fixed frequencies External Duplexer Where uplink or downlink paths require combining into a single feeder network or antenna an external duplexer will...

Page 15: ...multi racks Please consult with RFI Synthesiser Offset 0 00kHz or 6 25kHz Mode of Operation Full Duplex translating or non translating DSP channel filter profile options current 9 12 5kHz 15kHz 25 kHz...

Page 16: ...Gated 1137W 945W Mechanical Sub Rack Frame Height 4RU Height 179mm Sub Rack Frame Depth including connectors 440mm RFFE input and RFBE output termination connectors N F Ref Gen GPS Antenna termination...

Page 17: ...6VDC antenna termination connector SMA F Ref Gen module 10MHz clock internal reference generator GEN MON SMA F Ref Gen module 10MHz clock external reference EXT REF SMA F Ref Gen module Cellular mode...

Page 18: ...cross different bands within the DSPbR series Expanding capability even further a single sub rack frame can be daisy chained using CAN bus interconnection to allow for additional sub rack frames to be...

Page 19: ...larm The DSPbR hardware architecture requires a level of understanding in order for the configuration options to be understood The following sections provide an elementary explanation of the hardware...

Page 20: ...ontroller CSC Reference Generator Ref GEN Aux Digital Signal processor DSP and at least a one RF Front End RFFE and corresponding RF Back End RFBE A BPFM is bolted onto an RFFE for insertion and or re...

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