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Overview and Installation of the Cellular Distribution System (CDS) for Enhanced Cellular Coverage

The Cellular Distribution System (CDS) enhances cellular services in small to medium-sized buildings by utilizing Distributed Antenna Technology. It supports 800-900 MHz and 1900 MHz frequency bands, providing improved voice, data, and 3G services where reception is poor indoors. The compact 2U rack-mount panel is easy to install and uses low-loss cables. The installation process includes placing an external antenna, wiring the panel, and positioning internal antennas strategically. Ideal for areas with heavy loss materials, CDS ensures seamless communication indoors.

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Overview and Installation of the Cellular Distribution System (CDS) for Enhanced Cellular Coverage

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  1. CDS System Overview and Installation Training July 2009

  2. CDS – Cellular Distribution System Improves cellular services in small to medium sized buildings. Works for 800-900 MHz and 1900 MHz frequency bands Easy to install 2U rack mount panel Uses either RG6 (800-900MHz) or LMR400 (1900 MHz) low loss cables New OCC Product Overview

  3. CDS Overview • Provides improved cellular communications to buildings of poor service, where good service is available outside the building. • Applies structured cabling concepts to support wireless communications. • Uses Distributed Antenna Technology. • Voice, Data and 3G supported services.

  4. CDS Hardware Installed CDS Panel 2U 19’’ Rack Mount & Antenna Faceplate

  5. CDS Antennas External Antenna / Dual Band Internal Antenna Faceplate Antenna

  6. Broadband Antenna • Suitable for both 800-900 MHz and 1900 MHz applications. • Uses RF N-connector • Easily mountable in ceiling tile environment

  7. What is a Distributed Antenna • Distributed Antennas Systems (DAS) use multiple antennas for a single radio. • DAS offer a distinct advantage of creating low loss signal pathways at specified locations. • Heavy Loss materials (metal walls, re-bar concrete) can be by-passed. • The 4 outputs from the CDS Panel and the faceplates are a distributed antenna.

  8. CDS Architecture • External Antenna (Omni directional or high gain). • Cable to the panel from the extern (low loss coaxial cable – 5 dB). • Panel with bi-directional signal booster (65 dB Gain (37.5 Uplink and 37.5 Downlink channels) • Coaxial cable to the faceplate. (30 dB Loss) • Faceplate antenna (Omni directional)

  9. Install Considerations • Available Power Outside is proportional to Maximum Power Inside. • Multiple providers may share frequency band • Lower loss cable translates into increased coverage range. • Antennas are frequency dependent.

  10. Spectral Content prior to CDS Implementation

  11. Spectral Content after CDS Implementation

  12. DC Rooftop External Antenna Site Analysis Pennsylvania Avenue

  13. Dallas Hugley 1st Tower

  14. 2nd Tower Location Dallas

  15. CDS Install Criteria • Cell Phone Coverage must be good at a locale where the external antenna can be placed. • CDS Panel must support one of the approved service providers. • May determine frequency band from your service provider in your region www.wirelessadvisor.com

  16. There are 3 Service Provider Bands in North America 824 – 896 MHz (Verizon, AT&T) CDMA 806 and 900 MHz (Nextel, Southern Link) TDMA 1840 – 1990 MHz (PCS providers) Supports voice and data communications, as well as 3G phones (AT&T verified) CDS Supported Technologies

  17. 3 Step Installation SMP CDS? • SMP CDS offers several distinct benefits: • Place the external antenna at an outside location with good service. • Install the internal antennas in proximity to areas where service is deficient. • Provide 120AC to the panel.

  18. CDS Installation Overview

  19. Manufacturing Facility CDS Installation

  20. CDS Silver Spring Beta Test Site • Installed in Silver Spring, MD area. • 800-900 MHz Verizon and AT&T support. • Basement fill-in operational requirement in a 3 story building. • Installed October 2008 • 7 Story building currently being cabled for CDS installation at new facility next door.

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