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Related Manuals for CenRF CEG-P10
Summary of Contents for CenRF CEG-P10
- Page 1 CEG-P10 ~ CEG-P20 GSM Series Band selective repeater User’s Manual...
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Page 2: Table Of Contents
SYSTEM CHARACTERISTICS ............................7 4.1. : ................................7 EATURES 4.2. CEG-P10 ~ CEG-P20-GSM ..................7 PPEARANCE OF REPEATERS BLOCK DIAGRAM AND WORK PRINCIPLE........................8 THE REPEATER SYSTEM .............................9 CEG-P10 ~ CEG-P20 MAIN TECHNICAL SPECIFICATION..................10 7.1............................10 ECHANICAL SPECIFICATION 7.2............................10 NVIRONMENT ONDITIONS 7.3...........................10 TECHNICAL SPECIFICATION 7.4. -
Page 3: Safety Warnings
This user’s manual describes the installation, commissioning and maintainance of CEG-P10 ~ CEG-P20 repeaters. Please do read the user manual carefully before installing and maintaining CEG-P10 ~ CEG-P20 repeaters. The information in this manual is subject to change without prior notice Opinions are welcomed about the manual improvement. -
Page 4: Why Repeater
2. Why repeater 2.1. Reason 1 1) Blind or weak signal areas are formed if the buildings are too far away from BTS, or the buildings themselves shield or absorb the signals. 2) There are too many complicated signals in the higher part of the buildings, therefore ping-pong switching effect has been formed and the signals fluctuate a lot, there are annoying noises during phone calls and there are dropped phone calls accordingly. - Page 5 The maximum power level of CEG-P10 ~ CEG-P20 is 0.01W, and it decreases to be maximum 0.003W when reaching server antenna. And since the server antenna is installed over the ceiling or onto the wall, there are usually more than 3 meter away from the human body, 3meter away means at least 40dB propagation loss, or 10000 times less, 0.0000003W, therefore it is too weak to influence human bodies though it is still a very good...
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Page 6: Introduction
One Yagi antenna, as a donor antenna, has been installed at the top of the roof to pick up good mobile signals from outside, and send through a 5D-FB cable to a CEG-P10 ~ CEG-P20 repeater to be amplified significantly, then the output signals are divided into two signals by a 2way splitter, sent to two indoor omni antennas and finally transmitted into the coverage area. -
Page 7: System Characteristics
Manual gain control provides a variety of applications. MTBF>50000h, low failure rate 4.2. Appearance of CEG-P10 ~ CEG-P20-GSM repeaters Figure 1 the front view (colors may differ from real products). Figure 2 Side View Page 7 of 25... -
Page 8: Block Diagram And Work Principle
5. Block diagram and work principle CEG-P10 ~ CEG-P20 is basically a bi-directional amplifier, the downlink signals are received by the repeater from BTS by the donor antenna, filtered by its internal duplexers and FC unit, amplified by low noise amplifier (LNA) and downlink PA unit, and then sent via the server antenna to the coverage area. -
Page 9: The Repeater System
6. The repeater system Donor Antenna: 5~7dbi outdoor panel or 7~9dBi wide band Yagi are recommended as donor antenna. Function: Pick up donor signals from the BTS and send to the repeater by cable; the received signals’ power level and quality influence a lot on the coverage effect. Donro antenna also transmit the uplink signals from the repeater to BTS. -
Page 10: Ceg-P10 ~ Ceg-P20 Main Technical Specification
7. CEG-P10 ~ CEG-P20 Main technical specification 7.1. Mechanical specification Item specification Dimensions 218x 155 x 65 mm Weight 1.2 kg Environment Conditions IP54 Cooling mode Nature cooling 7.2. Environment Conditions Item specification Operating Temperature -25°C to +55°C Storage Temperature -40°C to +80°C... -
Page 11: Requirements For Adapters
Automatic Level Control ≧20dB ±400KHz ＜50dB ±600KHz ＜40dB Out of Band Gain ±1MHz ＜35dB ±5MHz ＜25dB 9KHz~1GHz ≦ -36dBm @ 3KHz Spurious Emission 1GHz~12.75GHz ≦-30dBm @ 3KHz 9KHz~1GHz ≦ -36dBm @ 3KHz Output inter-modulation 1GHz~12.75GHz ≦-30dBm @ 3KHz Noise Figure ≦... -
Page 12: Installation
8. Installation CEG-P10 ~ CEG-P20 micro repeater should be used to cover the area indoor and the humidity and temperature of working can affect the reliability of repeater. So, temperature, humidity, dust, interference, power, space requirements and other factors should be considered during installation of repeater. - Page 13 Output power. The signal strength from the outdoor antenna directly affects the efficiency of the indoor coverage. It is very important to choose the location of the outdoor antenna carefully. With this in mind, it is not recommended the donor antenna to be installed in an attic. ...
- Page 14 In order to avoid interference, please note that the donor antenna should be far away from the following objects. Metal High-voltage line RF antenna High-voltage transformer Repeater is a two-way signal amplifier. So proper isolation between donor antenna and server antenna is necessary in order to avoid self-oscillation.
- Page 15 Installation of panel antenna as donor antenna Installation of wide directional antenna as donor antenna Installation of YAGI antenna as donor antenna Page 15 of 25...
- Page 16 Test the call quality of donor antenna Lightening Test Engineer Phone Fix the donor antenna after selecting the best position, and adjust slightly its height or angles in order to get the signals with suitable input power level and calling Quality ...
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Page 17: Indoor Antenna Installation
3) Keep horizontal cables straight and fasten them stably with a fixing clip every 1 to 1.5 meters, with a proper stress. 4) Bind and fasten vertical cables every two to three meters to avoid damaging cables or connectors owing to their own heavy weight. -
Page 18: Repeater Installation
(corridors, long row of houses in two sides, tunnels or elevators or rural open space) 8.6 Repeater Installation 8.4.1. Installation Steps CEG-P10 ~ CEG-P20 shall be installed in indoor areas only Drill four holes as per the bracket size on the location where the repeater shall be installed and input expanding plastic. -
Page 19: Repeater's Ports Description
Check again to make sure the repeater is installed firmly and repeater alarm LED is green. 8.4.2. Repeater’s ports description Outdoor port: connected with the donor antenna by cable Indoor port: connected with server antenna directly or by cable DC IN: connected with power supply. Page 19 of 25... -
Page 20: Accessories Selection
8.4.3. Accessories selection Please pay attention to the two points of “frequency” and “impedance” during the selection of the accessories. All accessories shall support the repeater’s frequencies from feeder line, antenna and splitter to combiners etc. For example, the repeater’s frequency is GSM900, so all the accessories must support the GSM900 frequency. And the repeater’s impedance is 50ohm, so the accessories shall all be 50ohm. -
Page 21: Manual Gain Control (Mgc)
8.5.2. Manual Gain Control (MGC) DIP Switch attenuation Uplink attenuation Downlink attenuation DIP switch uplink attenuation setting: Att. Att. 0 dB off 11dB off 22dB off 1 dB off 12dB off off 23dB 2 dB off 13dB off 24dB off 3 dB ON ON off 14dB off... -
Page 22: Repeater Commissioning
8.5.3. Repeater Commissioning The curve about device working status Output Power Critical stable point input Power linear Green LED Equipment Red LED Orange LED amplification area overload zone Stable work area Output power, input signal and their attenuation curve Output Power Output Power: Input Power... -
Page 23: System Test
Setting of “edge point”: Switch on the power supply after connection with donor antenna and server antenna, and observe ALARM LED. If it shines “orange”, use 1dB as step to reduce the gain until “green” turns on, then increase the gain 1~3dB attenuation value until “orange”... - Page 24 power is enough; please install more server antennas or change with a repeater with higher power level. 2) If the signals in small part of the areas have not been improved, please check below: Check whether the service antenna is installed correctly or not, you may try to move the antnena location improve coverage ...
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Page 25: Repeater Can Not Communicate In Power-On Status
8.6.2. Repeater can not communicate in Power-ON status The power is on but there is signal fluctuation 1) The power is on but it has a signal fluctuation or a flash signal. The phone call can not achieved. It shall be caused by the insufficient isolation between donor antenna and serve antenna, Please take below measures: ...