Cisco Cisco Aironet 1400 Wireless Bridge 설치 가이드
6
Cisco Aironet 1400 Series Outdoor Wireless Bridge 9.5-dBi Sector Antenna
78-15546-01
Installation Notes
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 on a Mast
A mounting kit is provided with the antenna. This kit enables you to mount the antenna to masts up to
2.5-in. (6.3-cm) in diameter. The antenna can be configured for vertical or horizontal polarization. The
antenna must be in the vertical plane regardless of how its polarization is configured.
2.5-in. (6.3-cm) in diameter. The antenna can be configured for vertical or horizontal polarization. The
antenna must be in the vertical plane regardless of how its polarization is configured.
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).
Follow these steps to mount the antenna to a mast.
Step 1
Determine the polarization to use and follow these steps to adjust the polarization:
a.
Use a ¾-in. (19-mm) wrench to loosen the bulkhead connector so that you can rotate the antenna.
b.
Line up the antenna on the mounting bracket so that the desired polarization arrow points up.
shows the antenna set for vertical polarization. Make sure that the pin on the antenna is in
the hole on the mounting bracket.
c.
Make sure the drain hole at the bottom of the antenna is not plugged. If it is, remove the plug and
install it into the drain hole on the side of the antenna.
install it into the drain hole on the side of the antenna.
d.
Use a ¾-in. (19-mm) open-end wrench to tighten the bulkhead connector. Do not overtighten.
Step 2
Align the mounting bracket on the mast as close to the direction the antenna will be pointing when it is
operating.
operating.
Step 3
Form a drip loop in the antenna cable and secure the top and bottom mounting bracket tabs to the mast
using two 2-in. (5-cm) hose clamps.
using two 2-in. (5-cm) hose clamps.
Note
Use a standard screwdriver to tighten the hose clamps just tight enough to keep the bracket from
sliding down the mast. You need to be able to rotate the antenna on the mast when you perform
the alignment procedure.
sliding down the mast. You need to be able to rotate the antenna on the mast when you perform
the alignment procedure.
Step 4
Connect the antenna’s coaxial cable to the bridge’s N-Type antenna connector and tighten it hand-tight.
Note
If you prefer to tighten the antenna connection, use a torque-limiting tool like those listed in the
Tools and Equipment Required section and tighten it to 14-inch pounds. 14-inch pounds is
basically the torque a person can achieve using one hand.
Tools and Equipment Required section and tighten it to 14-inch pounds. 14-inch pounds is
basically the torque a person can achieve using one hand.