ADC 850 Cellular, 800 ESMR manual Digital Host Unit, Digital Expansion Unit, Digital Remote Unit

6 / 0 8 • 1 0 2 4 4 0 A E InterReach® In-building Coverage Solution

InterReach® In-building Coverage Solution

800 ESMR, 850 Cellular, 1900 PCS

Digital Host Unit

The DHU provides the input interface for RF signals from a base transceiver station (BTS), or a bi-directional amplifier (BDA). The DHU converts the RF signal into a digital format and distributes the digitized signal over fiber to multiple output ports, either Digital Expansion Units or Digital Re- mote Units. The DHU also performs power and alarming functions for the system. Alarms are accessible via dry contact closures. The DHU also has alarm status LEDs. The DHU is typically wall- or rack-mounted in a basement or other point of entry within a building requiring coverage.

Digital Expansion Unit

The DEU is used when more than six remotes are required to serve a building. The DEU receives the digitized signals from the DHU and distri- butes them over fiber to multiple digital outputs. These outputs can be Digital Remote Units or additional Digital Expansion Units. The DEU has alarm LED indicators. The DEU is typically wall- or rack-mounted in a wiring closet within the building requiring coverage.

Digital Remote Unit

The DRU receives the digitized signals from the DHU or intermediate DEU, converts the signals back into RF, and interfaces with the antennas to amplify the RF signals throughout the building. The Digital Remote Unit is a compact module that is typically mounted above ceiling tile.

Total Solution Support

ADC offers turnkey EF&I services for in-building applications and can provision all ancillary equipment needed to support various applica- tions. In addition, the company can provide infrastructure such as fiber, CAT5, connectors, and patch panels. From its skilled wireless systems engineering staff to its Professional Services, ADC supports in-building wireless applications end-to-end from system design through optimization and post-sale support.

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