Related Manuals for Cerevo CR-SIW21WB-20
Summary of Contents for Cerevo CR-SIW21WB-20
- Page 1 User’s Manual for CR-SIW21WB-20 User’s Manual WCDMA2100 Mini Repeater Model: CR-SIW21WB-20 www.cerevotech.com...
- Page 2 TECHNOLOGY LIMITED. No Part may be reproduced, disclosed or used except as authorized by contract of other written permission. No responsibility is assumed by CEREVO TECHNOLOGY LIMITED for any business or personal use, or for any infringements of patents or other rights of third parties that may result from its usage.
- Page 3 User’s Manual for CR-SIW21WB-20 CONTENTS OF DELIVERY Items Quantity CR-SI Series In-building Repeater 9V DC Plug-in Power Supply Screw Plastic Expansion Bolt User’s Manual www.cerevotech.com...
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Page 4: Table Of Contents
User’s Manual for CR-SIW21WB-20 Content CHAPTER 1 GENERAL 1.1 Abbreviations 1.2 Safety Warnings 1.3 For Helps CHAPTER 2 BEFORE GETTING STARTED 2.1 Product Description 2.2 How Does It Work 2.3 Accessories Selection CHAPTER 3 INSTALLATION 3.1 Overview 3.2 Internal Antenna Installation 3.3 In-building Repeater Installation... -
Page 5: Chapter 1 General
User’s Manual for CR-SIW21WB-20 Chapter 1 GENERAL 1.1 Abbreviations Automatic Gain Control Automatic Level Control Antenna Attenuation Base Transceiver Station CDMA Code Division Multiple Access Decibel Decibels Relative 1 milliwatt Downlink Digital Signal Processor Duplexer Global Standard for Mobile Communication... -
Page 6: Safety Warnings
User’s Manual for CR-SIW21WB-20 1.2 Safety Warnings 1 Repeater must be installed following user’s manual strictly, and assure good groundings and lightning for delivering repeaters stable protection. 2 The power supply of repeater should meet the standards of security. 3 Any user should disconnect power prior to operate repeater. -
Page 7: For Helps
User’s Manual for CR-SIW21WB-20 1.3 For Helps If you need additional copies of this manual, or have questions about products selection, solution configuration, or need help with installation or operation and any other technical supports, please contact us: Cerevo Tech Headquarter Add: Rooms 1318-20, 13/F, Hollywood Plaza, 610 Nathan Road, Mongkok, Kowloon, Hong Kong. -
Page 8: Chapter 2 Before Getting Started
User’s Manual for CR-SIW21WB-20 Chapter 2 BEFORE GETTNG STARTED 2.1 Product Introduction The in-building repeaters are designed to improve cellular coverage within a facility. Combined with interior antennas, and an exterior antenna, the repeater boosts the signal level for distribution within the interior areas, reducing dropped calls and expanding the carriers’... - Page 9 User’s Manual for CR-SIW21WB-20 Panel Introduction Connected with Donor antenna (External antenna) Connected with Power Light Alarm LED service antenna Connected with DC power (internal antenna) ATT Dips Power Switch Panel and Interfaces Internal Structure Schematic Diagram www.cerevotech.com...
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Page 10: How Does It Work
User’s Manual for CR-SIW21WB-20 2.2 How Does It Work The single-band indoor amplifiers operating within one band guarantee better cellular service and reduce dropped calls by enhancing signal strength. The in-building repeaters work combining with two antennas. One is donor antenna and the other one is service antenna. -
Page 11: Accessories Selection
Donor antennas are applied for obtaining signals from cell tower on DL, and retransmitting the amplified signals to cell tower on UL. It requires high directional capability and narrow beam width. Cerevo recommend you use Yagi Antenna as a Donor Antenna:... - Page 12 Panel Antennas Log-periodical antennas For more information about Cerevo Antennas, please visit our website: www.cerevotech.com Coaxial Cables Selection Coaxial cables with lower loss and easy layout is strongly recommended, such as 50 ohm 1/2’’...
- Page 13 User’s Manual for CR-SIW21WB-20 Splitters and Couplers Selection An in-building mini repeater will be used by combining with splitters or couplers if it is multi spot coverage, so that the signals will be divided and sent to several different service antennas in different locations.
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Page 14: Chapter 3 Installation
User’s Manual for CR-SIW21WB-20 Chapter 3 INSTALLATION 3.1 Overview The following steps can be followed in the in-building repeater’s installation Step1 Determine the internal antennas positions and install the antennas on roof or wall. Step2 Install the repeater inside at convenient (considering the power supply) and safe (far away from other electrical appliances for heat-dissipation) location. - Page 15 User’s Manual for CR-SIW21WB-20 Omni-directional Antennas Application For narrow area coverage, such as covering a narrow aisle or garden road, install the internal antenna (generally use directional panel antenna) at one side of the target area, and rotate the direction of the internal antenna pointing directly to the rest of the coverage area.
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Page 16: In-Building Repeater Installation
User’s Manual for CR-SIW21WB-20 3.3 In-building Repeater Installation Select a suitable location for repeater installation. The installation location should be convenient for AC power supply and safe, dry, cool and with adequate ventilation for heat-dissipation. In addition, considering the cable loss, the minimize coaxial cable lengths to these antennas is better, in other words, the repeater should be installed near to service antennas. -
Page 17: External Antenna Installation
User’s Manual for CR-SIW21WB-20 Besides wall mounted, you also can select other installation locations, like on a table or a bookshelf. No matter where you put it on, do not forget to fix the repeater. IMPORTANT: 1. The repeater should be placed at a safe, dry and safe location with enough ventilation. - Page 18 User’s Manual for CR-SIW21WB-20 Separation between Donor and Service ANT 5. If there is no any obstacle between donor antenna and service antenna, following separation between donor antenna and service antenna must be guaranteed: Type of Amplifier Minimum Separation 60dB Amplifier...
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Page 19: Repeater Launched
User’s Manual for CR-SIW21WB-20 IMPORTANT: 1. Only apply power to the repeater after the donor and server antennas are installed and connected 2. Indoor Port connects to internal antenna and Outdoor Port connects to external antenna. 3. Make sure all the connections are tightened. - Page 20 User’s Manual for CR-SIW21WB-20 each sequence number, there is one-to-one correspondence attenuating value in Fox example, one repeater has 70dB gain on downlink, and 65dB gain on uplink, when all the dips are dipped down, it means 0 dB attenuating value on downlink and uplink.
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Page 21: Troubleshooting
User’s Manual for CR-SIW21WB-20 Chapter 4 TROUBLESHOOTINGS & F.A.Q 4.1 Troubleshooting: Problems Probable Cause Corrective Action Check Power Supply Connections Power Supply problem POWER LED is Off reconnect power supply repeater. ALARM LED is in Red Input signals are too high... - Page 22 User’s Manual for CR-SIW21WB-20 4.2 F.A.Q: Solutions Question1 Check whether the output power of Adapter is DC9V or not Check whether the connector of outdoor antenna is tight or not Check whether the connectors of RF cable are tight or not...
- Page 23 User’s Manual for CR-SIW21WB-20 Chapter 5 SPECIFICATIONS Specifications for CR-SIW21WB-20 Frequency 1920-1980MHz 2110-2170MHz Electrical Specification Output Power (dBm) DL:20 UL:15 Max Gain (dB) DL:≥70 UL:≥65 AGC (dB) ≥20 Gain Adjust Range (dB) ≥30dB;1dB/step NF (dB) ≤6 Ripple in Band (dB) ≤8...