Transcript
GSM-R & WIRELESS CARRIER SOLUTIONS
MBF-40 Series for GSM-R Multi band fibre OPTIC fed repeater
Remote supervision and alarm handling in the MBF-40 for GSM-R is realised through the fibre connection via the OMU unit’s modem or optional via built in modem.
The unique combination of high output power and highly linear power amplifiers ensures large coverage with uniformly excellent signal quality.
The MBF-40 for GSM-R can optionally be upgraded with a second optical transceiver module for redundant fiber applications such as 2 BTS located in both sides of a tunnel, feeding the same MBF remote unit installed in the tunnel.
The MBF-40 for GSM-R is a fibre optic fed GSM-R repeater and is part of a system that is fed from an Optical Master Unit (OMU). The maximum optical loss that is allowed between the OMU and the most distant remote unit supported by the OMU is 10 dB. This offers great
flexibility when providing RF coverage in areas where it is not possible to rely on off air transmission. The fibre optic system is easily remotely monitored and controlled by Axell Wireless effective supervision tool, Axell Wireless Element Manager.
Automatic optical gain setting The gain is adjusted in the downlink chain by measuring the level of the pilot carrier sent from the Optical Master Unit (OMU). The level of the received pilot carrier is continuously monitored.
Base station site Tunnel OMU
Antenna Optical Fibre
Specifications Note! This specification covers the RF-part of a typical Fibre Fed repeating system. Optimum levels for fibre to RF and typical fibre link NF’s are assumed. ELECTRICAL SPECIFICATIONS
Uplink (UL)
(Downlink) DL
Frequency range GSM-R 900
876 – 880 MHz
921 – 925 MHz
Operational bandwidth
4 MHz
Gain UL/DL
Adjustable, in 1 dB steps
Passband ripple
< 2 dB
Composite output power DL
+ 37 dBm GSM/GMSK + 34 dBm EDGE/8-PSK
Noise Figure UL
6 dB (maximum gain)
Propagation Delay
< 2 μsec
modulation accuracy at nominal output power GSM / GMSK
< 2.5˚ RMS and < 10˚ peak at + 37dBm
EDGE / 8-PSK
< 3 % EVM RMS at + 34dBm
Intermodulation
< - 36 dBm (two carriers at + 34 dBm, 600 kHz spacing)
Spurious responses
< - 36 dBm for 9 kHz – 1 GHz < - 30 dBm for 1 GHz – 13 GHz
GENERAL Return loss at antenna connections
> 16 dB
Antenna connector
DIN 7/16
Electrical ratings
230 VAC 50Hz, 115 VAC 60Hz, -48 VDC
Power consumption
150 W
System impendance
50 Ohm
ENVIRONMENTAL Operating temperature
- 25 to + 55°C
Storage temperature
- 30 to + 70°C
Humidity
ETSI EN 300 019-2-4 (see compliance below)
EMC mechanical Dimensions
See compliance below 540 x 382 x 198 mm
Weight
21 kg
Enclosure
Aluminium ( IP 65 )
MTBF
> 100000 hrs
Complies Complies with
R& TTE Directive including ETS EN 301 502 ( ETS EN 300 609-4 / GSM 11.26 ) ETS EN 301 498-8 EN 60 950 EN 60 825 -1 EN 50 385
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
About Axell Wireless Axell Wireless is one of the top 3 global providers of wireless coverage solutions and the market leader in the provision of solutions for the public safety market worldwide. Applications for Axell Wireless equipment include coverage solutions for all sorts of environments including road and rail tunnels, metros, small and large buildings and transportation systems such as railways and aeroplanes. With its headquarters in the UK, Axell Wireless has been operating for over 30 years and has a substantial international presence operating out of 10 offices across 4 continents. A proven track record combined with a worldwide reputation for providing innovative and high quality products have made Axell Wireless a truly global player in the wireless coverage industry. www.axellwireless.com MBF-40 series_GSM-R_rev A • © Axell Wireless Ltd
