Справочник Пользователя для ADC Telecommunications Inc. DVICS800-1
ADCP-75-110
•
Issue B
•
March 2001
Page 21
©
2001, ADC Telecommunications, Inc.
2.7 DRU Antenna Options
Four
antennas, shown in Figure 11, are available from ADC for use with the DRU. All
antennas
include a 6 foot (1.8 m) long 50-ohm coaxial cable (equipped with SMA male
connector)
for connection to the DRU. The DRU is equipped with an SMA female connector
for
connecting the antenna cable.
The
DRU antennas are designed for unobtrusive mounting within an office environment. Each
type
of antenna provides a specific coverage pattern in order to accommodate the shape of the
area
where coverage is required. The ceiling-mount omnidirectional antenna provides 2.5 dBi
of
gain and is designed to mount in the center of the coverage area. The directional panel
antenna
provides 8 dBi of gain and is designed to mount vertically on one side of the coverage
area.
The 90º panel antenna provides 7.5 dBi of gain and is designed to mount vertically in the
corner
of the coverage area. The ceiling mount hallway antenna provides 4 dBi of gain and is
designed
to mount in the center of long corridors. Other antennas other than those offered by
ADC
may also be used if required.
Note:
To comply with Maximum Permissible Exposure (MPE) requirements, antennas must
be
installed to provide at least 20 centimeters of separation from all persons per FCC 47 CFR
part
2.1091.
6.14 INCH DIAMETER
1.05 INCH DEPTH
1.05 INCH DEPTH
MOUNTING STUD
LENGTH - 1.5 INCHES
7.26 INCHES
3.88 INCHES
2.26 INCHES
8.65 INCHES
6.55 INCHES
2.38 INCHES
7.90 INCHES
2.38 INCHES
8.65 INCHES
CEILING-MOUNT
HALLWAY
CEILING-MOUNT
OMNIDIRECTIONAL
DIRECTIONAL PANEL
(WALL-MOUNT)
90 DEGREE DIRECTIONAL
(CORNER MOUNT)
MOUNTING STUD
LENGTH - 3.85 INCHES
ALL ANTENNAS ARE EQUIPPED WITH
A 72-INCH RG58/U CABLE TERMINATED
WITH A MALE SMA CONNECTOR
MOUNTING STUD
LENGTH - 1.5 INCHES
16237-A
Figure 11. DRU Antenna Options