CR300 Bi-Directional Repeater Installation & User Manual www.signalreach.
Document Title: Installation & User Manual Product release:CR300 Document version:CR300 User Manual v1.8.doc Date: May 2004 Copyright1 Printing2Legal statements3 1Copyright 2000- 2004 SignalReach Inc., All Rights Reserved 2Printed in Canada 3Information is subject to change without notice. Arrista Technologies Inc. reserves the right to make changes in design or components as progress in engineering and manufacturing may warrant.
Installation & User Manual Table of Contents Introduction ________________________________________________________________________2 Functional Description _______________________________________________________________3 Installation Procedure ________________________________________________________________4 Fault Reporting _____________________________________________________________________7 Operation __________________________________________________________________________7 Product Maintenance__________
Installation & User Manual Introduction In-building repeaters provide enhanced coverage of cellular telephone signals for areas that are confined or enclosed such as tunnels, underground parking garages, and within buildings. Many buildings are constructed of materials like metal, brick and concrete that attenuate cellular telephone signals. Symptoms such as dropped calls, broken audio and static indicate the need for an inbuilding repeater.
Installation & User Manual CR300 Features: • Easy Installation – No calibration required • Automatic feedback detection and warning circuitry • Auxiliary in-building antenna port provides enhanced coverage • Up to 20000 ft2 of free space coverage with only one interior antenna • Network-compatible operation • Auto levelling circuitry ensures linear operation • IC, FCC approved • External fault output signal Functional The repeater works on the principle of receiving the handset signal Des
Installation & User Manual Installation Warning; Equipment Installation Procedure Proper Grounding Follow the local building codes for installation of antennas on buildings. Ensure that the exterior mounted donor antenna is properly mounted and grounded for lightning protection. RF exposure Guidelines During transmitter operation, in order to meet RF Maximum Permissible Exposure Safety Guidelines, a minimum distance of 50 cm (20 in.) shall be maintained between the outdoor (uplink) antenna and personnel.
Installation & User Manual 60dB, as a result, the isolation required between the subscriber and the donor antenna is in a range of 70dB. The line of sight separation between the subscriber (indoor) and donor (outdoor) antennas represented by a free space loss of 70dB within a building is 17 meters (55 feet). The separation distance can be reduced if the donor antenna is mounted on the building exterior (i.e. on a roof), or using a directional donor antenna (narrow beam width).
Installation & User Manual If a second subscriber (indoor) antenna is to be used, select a location that is at least 16 meters (55ft) away from both the first subscriber (indoor) antenna and the donor (outdoor) antenna. Once the antenna is connected, adjust the sliding switch to enable the secondary subscriber port (Ant 2). Figure 1. CR300 Connections Verify all cables are connected properly and connect the provided AC to DC adapter to the unit.
Installation & User Manual Fault Reporting The unit has an open collector output than can relay any fault condition to an external device. This uses the third pin in the power connector. This pin is rated at 12V, 200mA and is at ground potential when a fault condition exists. Figure 2 Power Connector Pinout Operation The in-building repeater operates automatically and does not require user intervention.
Installation & User Manual Troubleshooting The repeater unit contains no user serviceable parts and should not require maintenance. Two LEDs on the unit will indicate its current operating state. Indication Power LED is off, status LED is off Cause The repeater does not have power applied to it Action Check the power supply connection. Power LED is on, status LED is off The repeater is operating normally None.
Installation & User Manual RF Specifications Frequency Range Typical Output Power Uplink Downlink 806-825 MHz 851-870 MHz + 23dBm +15dBm 60 dB 60 dB 18 dBi 9 dBi 1 Typical Gain Maximum Allowable Antenna Gain Poor Isolation Detection & If re-generative feedback between indoor and outdoor Warning Indicator antennas is detected, condition will be indicated with an amber LED indicator 1 Maximum Possible Exposure Human exposure to non-ionizing radiation meets or exceeds (MPE) the permissibl
Installation & User Manual Copyright © 2004 Arrista Technologies Inc. All rights reserved.
