User's Manual

Zinwave 2700 DAS – User Manual
Issue 1.2
April 2007
© Zinwave Ltd. 2007
3.4 277X Antenna Unit – Band specific
3.4.1 Overview
o The 277X AUs are 3U high wall, ceiling or rack mountable units which amplify
the received optical signals for transmission over a wireless link (in the case of
the downlink signals) and amplify the received wireless signals for transmission
over the optical link (in the case of the uplink signals).
o The 277X AUs utilize the 2765 wideband AU in its core together with a band-
specific duplexer to suppress undesired frequency bands.
o Because of the integrated duplexer, a single antenna is required for both
transmit and receive.
o Adjustable gain settings allow you to define the coverage area of each AU
individually. Control of the AU is remotely via the HU. These are controlled
remotely via the Hub Unit.
o The 277X AUs are powered via IEEE 802.3af compliant Power over Ethernet
(PoE).
Figure 3-21 show a block diagram of the 277X AU.
Figure 3-21: Block diagram of the 277X AU.
3.4.2 Dimensions and Weight
Dimensions and weight listed in Table 3-13 are for an AU without the optional 19” rack
mounting kit.
Table 3-13: Dimensions and weight of the 277X AU.
Parameter 277X Unit
Height 12.0 (4.75) cm (inch)
Width 37.0 (14.5) cm (inch)
Depth 26.0 (10.25) cm (inch)
Weight 5.3 kg
Control + Monitoring
To/From
antenna
Optical
Transceiver
PoE
From Hub
To Hub
Duplexer
2765 AU