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Description:
The Fiber Optic Repeater (FOR) consists of two parts: Donor Unit and Remote Unit. The Donor Unit transforms downlink radio signal to optical signal and transmits to the Remote Unit. Then the Remote Unit transforms the optical signal to radio signal and transmit to coverage areas. Conversely, the Remote Unit transforms the uplink radio signal to optical signal, and transmits to the Donor Unit. Then the Donor Unit transforms the optical signal to radio signal and transmit to base station. It achieves the bidirectional amplification of the base station uplink and downlink signal via combine fiber optic transmission with radio coverage. Thereby availably expand coverage range of base station, provide solution of flexible outdoor coverage, enhance voice quality and improve the coverage effect of mobile communication network. The Simulate Fiber Optic Repeater, which directly amplify the simulate radio signal(without digital disposal).
Product Category:
As per the method of receiving BTS signal by the Donor Unit, two types of FOR are available:
Cable-Access FOR: the receive BTS signal via a direct coupler closed to the BTS (recommended);
Wireless-Access FOR: to receive BTS signal via a Donor Antenna (applicable when no fiber optic cable connecting to the BTS); can be sorted into 2 sub-categories: Band-Selective and Channel-Selective.
According to the system composing the FOR can be also divided into single system, dual system, and multi-system (above three).
Products series:
Our products, covering from common communication 2G (CDMA450, CDMA800, CDMA1900, GSM, EGSM, GSM1800, GSM1900, DCS, PCS), 3G and 4G (WCDMA, UMTS, CDMA2000), Trunking Communication(TETRA, iDEN, GoTa, GT800, 350Mhz Police Communication), Digital TV Communication(CMMB, DVB-H, T-DMB, S-DMB), Railway Communication System(450MHz Radio Train Dispatch Communication Series, GSM-R Series), Military Communication, FM Broadcast Communication, VHF, UHF Interphone Communication, Marine Communication, Sea Area Coverage Systems, output power can be chose from 0.5W(27dBm) to 60W(48dBm).
Product Features:
1.ALC and AGC to ensure easy installation without setting.
2.High gain linear power amplifier technique with reliable performance, support multi-carrier working.
3.One Donor Unit can link 4 Remote Units at most.
4.Adopting Wavelength Division Multiplexing technology to realize long distance transmission via a fiber.
5.Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink.
6.Details repeater parameters and status monitor, such as RSSI, temperature, output power level, gain, ATT, return loss, VSWR etc.
7.Configure RS-232 ports to links to laptop for local test.
8. Monitor the Remote Unit via Donor Unit.
9.Can choose SMS, GPRS or TCP/IP for remote monitoring.
Technical parameters:
|
Maximum output power(dBm) |
27~48 |
|
Gain(dB) |
50~70 |
|
Gain adjustment range(dB) |
≥30 |
|
Noise factor(dB) |
≤4.0(at maximum gain) |
|
VSWR |
≤1.4 |
|
Power requirement |
AC220V±20% 45~55Hz, DC-48V±20% or solar cell supply |
|
Fiber Optic |
Single Mode Fiber wavelength 1.31μm and 1.55μm |
|
Optical receiver sensitivity(dBm) |
-18(carrier noise ratio of transmission≥24dB) |
|
Interface |
FC/APC |
|
Local and remote monitoring |
power,gain,standing wave,input power sign,output power,temperature,fault alarm etc. |
|
Remote monitoring mode |
GPRS or Internet or SMS |
|
Work temperature(℃) |
-20~+40 (indoor);-40~+55(outdoor) |
|
Average faultless working time (H) |
50000 |
Typical Application:
Applicable to airport,underground,high building,large-scale building, such areas where transmission distance is long, hard to construct and easy to cause pilot pollution.
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