INSTALLATION GUIDE FOR UHF DAS
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GENERAL INFORMATION
The Public Safety UHF Distributed Antenna System (hereinafter called “UHF PS DAS”) consists of the Master Unit
(MU), the Expansion Unit (EU) and Remote Unit (RU). The MU includes the MU Chassis, Power Supply Unit (PSU),
and RF module. The Expansion Unit includes the optical modules. The Fiber Optical module is a modular design, and can
support up to 4 or 8 independent Remote Units. The Remote Unit is designed with a compact form for easy installation.
The low signal transmission loss of optical fiber is applicable for long distance transmission. UHF PS DAS can support
optical transmission with up to 6.5dBo of optical loss, equivalent to 8 miles of fiber length.
Main Features
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Supports P25 P1/P2, digital and conventional analog communications simultaneously
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Simplex and internal Duplexing supported
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Up to 32 narrow band filters (Class A)
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Up to 4 wide band filters (Class B)
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Supports up to 32 Remote Units when cascading Expansion Unit
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Supports MU/EU/Fiber Redundancy
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Channelized and per time slot Auto Level Control (ALC) supported (Class A)
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Channelized uplink squelch supported (Class A)
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Built-in mandatory isolation test to prevent oscillation
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Auto shutdown with alarm upon oscillation detection
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Web based GUI for intelligent configuration, SNMP supported
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NFPA 1221 / IFC compliant dry contact alarms
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UL50E Type 4 / NEMA 4 enclosure on MU/RU/EU
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The following figure shows the enclosure of the UHF PS DAS Master Unit(MU), Expansion Unit(EU) and Remote
Unit(RU).
Figure 1: Master Unit (MU)
