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Cisco Aironet 1550 Series for Hazardous Locations Installation Guide
Chapter 1 Overview
Hardware Features
installation and grounding of the antenna, please refer to national and local codes (e.g. U.S.:
NFPA 70, National Electrical Code, Article 810, Canada: Canadian Electrical Code, Section 54).
Statement 280
For your safety, read and follow these safety precautions.
1.
Before you install an antenna, contact your Cisco account representative to explain which mounting
method to use for the size and type of antenna that you are about to install.
2.
Select your installation site with safety, as well as performance, in mind. Remember that electric
power lines and phone lines look alike. For your safety, assume that any overhead line can kill you.
3.
Contact your electric power company. Tell them your plans and ask them to come look at your
proposed installation.
4.
Plan your installation carefully and completely before you begin. Each person involved in an
installation should be assigned to a specific task and should know what to do and when to do it. One
person should be in charge of the operation to issue instructions and watch for signs of trouble.
5.
When installing your antenna, follow these guidelines:
–
Do not use a metal ladder.
–
Do not work on a wet or windy day.
–
Do dress properly—wear shoes with rubber soles and heels, rubber gloves, and a long-sleeved
shirt or jacket.
6.
If the assembly starts to drop, move away from it and let it fall. Because the antenna, mast, cable,
and metal guy wires are all excellent conductors of electrical current, even the slightest touch of any
of these parts to a power line completes an electrical path through the antenna and the installer.
7.
If any part of the antenna system should come in contact with a power line, do not touch it or try to
remove it yourself. Call your local power company to have it removed safely.
8.
If an accident should occur with the power lines, call for qualified emergency help immediately.
Multiple Power Sources
The 1550 series access point for hazardous locations supports these power sources:
•
AC power—100 to 240 VAC (model 1552H and 1552SA access points)
•
External 24 VDC (1552SD and 1552WU)
•
Power-over-Ethernet (PoE)—56 VDC power injector (AIR-PWRINJ1500-2=), on model 1552H
only
Warning
Connect the unit only to DC power source that complies with the safety extra-low voltage (SELV)
requirements in IEC 60950 based safety standards.
Statement 1033
The 1552 access point for hazardous locations can be connected to more than one power source. The
access point detects the available power sources and switches to the preferred power source using the
following default prioritization:
•
AC power (1552H and 1552SA)
•
External 24 VDC (1552SD and 1552WU)
•
Power injector PoE power (1552SA/1552SD and 1552H)
