User's Manual

DMR repeater 18/02/2011 Versione 1.3
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Pag. 2 / 32
Index
1 RADIO ACTIVITY DMR REPEATER AND EXPANDIBILITY TO SIMULCAST NETWORK......................4
2 PARAMETERS CONFIGURATION AND REMOTE CONTROL ..........................................................5
3 HARDWARE COMPOSITION OF A BASE STATION .......................................................................6
3.1
PSU: POWER SUPPLY UNIT MODULE.............................................................................................. 6
3.2
DSP: DIGITAL SIGNAL PROCESSOR ................................................................................................. 7
3.3
RECEIVER ...................................................................................................................................... 8
3.4
TRANSMITTER............................................................................................................................... 9
3.5
I/O AND SERVICES MODULE ........................................................................................................ 10
4 TECHNICAL DATA....................................................................................................................11
4.1
REGULATIONS COMPLIANCE........................................................................................................ 11
4.2
GENERAL CHARACTERISTICS ........................................................................................................ 11
4.3
IP interfacing .............................................................................................................................. 12
4.3.1
LAN protocol ................................................................................................................................... 12
4.3.2
LAN requirements ........................................................................................................................... 12
4.3.3
Ports and connectors ...................................................................................................................... 13
4.3.4
Codec VoIP ...................................................................................................................................... 13
4.4
Radio frequency.......................................................................................................................... 14
4.4.1
Transmitter......................................................................................................................................14
4.4.2
Receiver...........................................................................................................................................15
4.4.3
Frequency bands ............................................................................................................................. 17
4.4.4
Commutation band (without duplexer).......................................................................................... 17
4.4.5
Branching requirements .................................................................................................................17
4.4.5.1
TX to antenna duplex isolation requirements @10W TX RF power ........................................17
4.4.5.2
Suggested RX max input limits on unwanted signals...............................................................18
4.5
Other specifications .................................................................................................................... 18
4.5.1
Environmental parameters ............................................................................................................. 19
4.5.2
Power supply................................................................................................................................... 19
4.5.3
Mechanical characteristics.............................................................................................................. 19
4.5.4
Audio balanced interfaces............................................................................................................... 19
5 EQUIPMENT INSTALLATION AND MAINTENANCE ....................................................................20
5.1
CONNECTIONS AND PINOUTS...................................................................................................... 20
5.2
EQUIPMENT START UP, RUNNING AND ALARMS: INDICATOR LAMPS ........................................... 27
5.2.1
PSU .................................................................................................................................................. 27
5.2.2
DSP .................................................................................................................................................. 27