Helios® GSM&DCS&UMTS Tri-band Integrated Fiber Optic Repeater System is a innovation technology, and is designed to simultaneity solve problem of GSM&DCS&UMTS tri-band weak mobile signal in the place that is far away from the GSM&DCS&UMTS Base Stations (BTS) and has fiber optic cable network available.

Features
1. In-built Fiber Optic Transceiver Module complies with 800 - 2200MHz ultra-wideband spectrum usage to simultaneity realizes long distance transmission for GSM900MHz & DCS1800MHz & UMTS2100MHz simultaneity by a single fiber cable.
2. In-built unique "Double Hot Standby" function in Fiber Optic Transceiver Module to support automatically switch to another backup fiber cables on main fiber cable failure.
3. In-built AGC & ALC function be able to ensure easy installation without setting
4. High gain linear wide-band power amplifier technique with reliable performance, support multi-carriers working.
5. Output power +37dBm - +43dBm for option
6. 2 RS232 or RJ45 ports provide links to laptop for local setting and monitoring by built-in web interface.

7. Built-in wireless modem (Option) for remote monitoring by SMS, GPRS or TCP/IP.
8. Details repeater parameters and status can be monitoring by built-in web interface, such as RSSI, temperature, output power level, gain, ATT, return loss, VSWR etc.
9. Support upgrading firmware remotely by GPRS.
10. Outstanding Repeater Backup Power Supply Unit (Option) is designed to support repeater continued working min. 4hours on main power failure, and the power failure alarm will automatically report back to NMS center.
11. Fiber DAS Donor Unit adopts 19" (2U Height) standard casing enclosure which is very easy to be installed into 19" cabinet in BTS room.
12. Fiber DAS Remote Unit and all emote Boosters all adopt casing enclosure with IP65 protection and compact design, cool system without fan.

Technical Specifications
Frequency Range (Customized):
Uplink: 890-915MHz&1710-1785MHz&1920-1980MHz
Downlink: 935-960MHz&1805-1880MHz&2110-2170MHz
Working Bandwidth: Various bandwidth is available upon request
No. Of Channels: 1, 2, 4, 6, 8 for option
Transmission Distance: Max 20KM (From Donor Unit to Remote Unit)
Max Input Level: +10dBm
Output Power:
Uplink: Donor Unit: Min. -10dBm
Downlink: Remote Unit: Min. +37-+43dBm(5W-20W)
Gain: Remote Unit: Min. 65dB
AGC Control Range: Min 20dB (+/-2dB)

Gain Control Range: 31dB (1dB Step)
VSWR: < 1.5
Ripple in Band: Max +/- 1.5dB
In-band Inter Modulation Attenuation: Max -15dBm (Measured under rated output power)
Spurious Emissions: Comply to ETSI requirement & 3GPP TS 25.106
RF Connector: N-type Female
I/O Impedance: 50 ohm
Noise Figure: Max 5dB
Group Time Delay: Max 5µ S

Temperature Range: -30 degree Celsius to +55 degree Celsius
Relative Humidity: Max 95%
MTBF: Min. 100000 hrs
Power Supply: DC -48V / AC220V (+/-15%), 50Hz
UPS Backup Power Supply (Optional): 6 hours / 8 hours
Remote Control Module (Optional): RS232 or RJ45 + Wireless Modem + Chargeable Li-ion Battery
Approvals and Tests:
EN 60950 & ETSI 301 489-1 & ETSI 300 609-4&ETSI 301 908-11

Dimension:
Donor Unit: 483mmX342mmx110mm
Remote Unit:
+30dBm-+37dBm: 460mmX405mmx180mm +40dBm+43dBm: 605mmX445mmx225mm
Weight:
Donor Unit: 8Kg
Remote Unit: +30dBm-+37dBm: 20Kg +40dBm-+43dBm: 28Kg