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Installation & User Manual

CR100 Bi-Directional Repeater

Document Number: 102-2001-001

Product release:

Document version:Prelim 2.02

Date:Jan 2004

Copyright1 Printing2Legal statements3 Trademarks

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.

Trademarks are property of their respective owners

Summary of content (8 pages)

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Installation & User Manual CR100 Bi-Directional Repeater Document Number: 102-2001-001 Product release: Document version:Prelim 2.02 Date:Jan 2004 Copyright1 Printing2Legal statements3 Trademarks 4 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.
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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 in-building repeater.
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Threshold of handset receiver: -104dBm Actual received power: as low as -130dBm (too low for handset) Signal strength outside building -90dBm Base Station Building material attenuates signal by 10 to 40dB This product is designed for installations where cellular coverage is available outside the building, and indoor coverage is inadequate.
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Base Station Threshold of handset receiver: -104dBm In-building repeater provides 40 dB gain Signal strength outside building at antenna: -90dBm Actual received power (with losses inside building): -95dBm (10 dB margin) Arrista’s CR-100 in-building repeater is a Class B Broadband device, it will process the entire cellular 800MHz spectrum. Input and output duplexers and band pass filters in the downlink and uplink path provide the repeater’s filtering and isolation.
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Installation Procedure The repeater unit should be installed in a sheltered area, it’s operating temperature range is extensive, but is not sealed to prevent water (rain) ingress. The repeater unit should not be installed in an area where the ambient temperature is expected to exceed +60°C. The indoor and outdoor antenna locations must be chosen carefully to avoid re-generative feedback. Re-generative feedback occurs when the subscriber antenna picks up the donor antenna transmit signal.
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outside wall of a building. A cell phone can be used to determine if an adequate signal is present at the chosen location. Run a length of 50-ohm cable (LMR-240 is recommended for cable runs less than 15meters (50ft)) between chosen location and the repeater unit. Warning Equipment Installation: • • • • • Follow the local building codes for installation of antennae on buildings. Ensure that the exterior mounted donor antenna is properly mounted and grounded for lightening protection.
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has an open collector output than can relay the 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. Product Maintenance The CR100 does not require maintenance, as long as the it is properly installed following the guidelines stated in this manual.
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Specifications RF Specifications Frequency Range Maximum Output Power 1 Maximum Gain Poor Isolation Detection & Warning Indicator Maximum Possible Exposure (MPE) Uplink Downlink 824-849 MHz 869-894 MHz + 20dBm +15dBm 60 dB 60 dB If re-generative feedback between indoor and outdoor antennae is detected, condition will be indicated with an amber LED indicator Human exposure to non-ionizing radiation meets or exceeds the permissible FCC mandated MPE specification 1 The RF output power specification is for a