Cisco Aironet 1570 Series, Руководство по установке

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Cisco Aironet 1570 Series Outdoor Access Point Hardware Installation Guide
OL-32138-01
Chapter 3 Mounting the Access Point
Choosing the Mounting Kit
Note The access point is designed with consideration for resistance to effects of lightning effects on the access
point electronics. The access point employs lightning arrestor circuitry on the Ethernet and power ports.
On the input Ethernet port, Gas Discharge Tubes (GDT) are used for the Power Entry Module (PEM) to
mitigate lightning effect. On the AC power, GDTs are also used along with fuses to mitigate high-current
condition. For the DC power, a fuse is used to mitigate high current condition.
While not a common practice, the user may want to consider using lightning protection at the antenna
ports for added protection. To meet EN/IEC60950-22 (Clause 4.2) requirements, the installer must
ensure that additional protection is provided external to this equipment to reduce transient surges from
Overvoltage IV to Overvoltage Category II at the AC power input of the access point. The over-voltage
and fault-current protection components used to achieve this protection must comply with the IEC 61643
series of standards. To meet CAN/CSA-C22.2 No. 60950-22-07/UL60950-22 requirements, the installer
may use alternative components to provide this additional protection. Those components may comply
with ANSI/IEEE C62.11, CSA Certification Notice No. 516, CSA C22.2 No. 1, or UL 1449. Suitability
of the components for the application must be determined for the intended installation. (For example,
some devices are suitable for installation on the load side of the service entrance only, and some are
suitable for use with cord-connected equipment only.)
Choosing the Mounting Kit
Personnel installing the access point must understand wireless access points and bridging techniques and
grounding methods.
Note •
When mounting an access point horizontally or vertically, ensure that the base of the access point,
with the LED indicators, is visible from the ground below the access point.
•
Ensure that the access point is mounted in such a way so that all antenna ports and the console port
are accessible for future use.
1
Pole or wall on which AP is vertically
mounted.
6
Ground
2 Shielded outdoor-rated Ethernet
(CAT5e or better) cable
1
1. User supplied.
7 AC power cord
2
2. The safety ground wire in the AC power cord must have a ground path to a grounding rod.
3 Water drip loop 8 Power injector
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3. The shielded Ethernet cable has a ground path through the power injector and the safety ground wire in the AC power cord.
4
6-AWG copper grounding wire
1
9
Shielded Ethernet (CAT5e or better) cable
1
5
Ground rod
1
10
Controller (through a switch)