Cisco Cisco Aironet 1400 Wireless Bridge 설치 가이드
6
Cisco Aironet 1400 Series Outdoor Wireless Bridge 9-dBi Omnidirectional Antenna
78-15545-01
Installation Notes
Choosing a Mounting Location
The antenna is designed to create an omnidirectional broadcast pattern, which receives radio signals
from client sites within its range. To achieve this pattern, mount the antenna clear of any obstructions
between it and the client antennas. To avoid the changing of its radiation pattern or an impedance
mismatch, mount the antenna at the top of a mast whenever possible with no part of the mast extending
more than 1 to 2 in. (2.5 to 5.0 cm) past the top-most antenna U-bolt clamp. If a side-mount is necessary,
mount antenna no closer than 1 ft. (30.4 cm) away from the nearest metallic vertical member.
from client sites within its range. To achieve this pattern, mount the antenna clear of any obstructions
between it and the client antennas. To avoid the changing of its radiation pattern or an impedance
mismatch, mount the antenna at the top of a mast whenever possible with no part of the mast extending
more than 1 to 2 in. (2.5 to 5.0 cm) past the top-most antenna U-bolt clamp. If a side-mount is necessary,
mount antenna no closer than 1 ft. (30.4 cm) away from the nearest metallic vertical member.
Tools and Equipment Required
To install the antenna, you need the following tools and equipment:
•
One aluminum bracket with 5/16-18 set screw
•
One 1/4-20 x 2.5 in. pipe U-bolt with flat washers, spring lock washers, and nuts
•
7/16-in. (11-mm) wrench
•
5/32-in. (4-mm) hex head wrench
•
Torque-limiting pliers (Milbar Model 45Z or equivalent)
•
A Small level
•
Coaxial connector sealing compound (not provided)
The following sections contain procedures for installing the antenna. Choose the procedure that applies
to your situation. Use
to your situation. Use
as a guide.
Mounting the Antenna
A mounting bracket is provided with the antenna. This bracket enables you to mount the antenna to masts
up to 2.5 in. (6.3 cm) in diameter.
up to 2.5 in. (6.3 cm) in diameter.
The antenna is vertically polarized; therefore, it is very important to mount the antenna in a vertical (not
leaning) position for optimal performance.
leaning) position for optimal performance.
Note
The distance from the antenna to the bridge should be within reach of the antenna’s 4.9-ft (1.5-m)
preconnected coaxial cable. For optimum system performance, do not replace the preconnected antenna
cable with a longer one.
preconnected coaxial cable. For optimum system performance, do not replace the preconnected antenna
cable with a longer one.
Note
To ensure correct installation and grounding, install the antenna in compliance with your local and
national electrical codes: National Fire Protection Association (NFPA) 70, National Electrical Code
(U.S.); Canadian Electrical Code, Part 1, CSA22.1 (Canada); and if local or national electrical codes are
not available, refer to IEC 364, Part 1 through Part 7 (other countries).
national electrical codes: National Fire Protection Association (NFPA) 70, National Electrical Code
(U.S.); Canadian Electrical Code, Part 1, CSA22.1 (Canada); and if local or national electrical codes are
not available, refer to IEC 364, Part 1 through Part 7 (other countries).