Cisco Systems 1550, AIRCAP1552HAK9 manual Components in a Typical Access Point Installation

Chapter 2 Installing the Access Point

Installation Guidelines

Figure 2-1 Components in a Typical Access Point Installation

10

	1
	2
9
8	3
7	4
	5	281938
6

1	Building roof-overhang	6	Ground
2	Shielded outdoor-rated Ethernet	7	AC power cord2
	(CAT5e or better) cable1
3	Water drip loop	8	Power injector3
4	6-AWG copper grounding wire1	9	Shielded Ethernet (CAT5e or better) cable1
5	Ground rod1	10	Controller (through a switch)

1.User supplied.

2.The safety ground wire in the AC power cord must have a ground path to a grounding rod.

3.The shielded Ethernet cable has a ground path through the power injector and the safety ground wire in the AC power cord.

Note The 1552 access point was designed with consideration for resistance to effects of lightning effects on the access point electronics. The 1552 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

	Cisco Aironet 1550 Series Outdoor Mesh Access Point Hardware Installation Guide
2-10	OL-24247-01