Grounding The Access Point - Cisco C9124AXE-E Installation Manual

Grounding the Access Point

3
Cable for the Lightning Arrestor
Coaxial cable loses efficiency as the frequency increases, resulting in signal loss. The cable should be kept
as short as possible because cable length also determines the amount of signal loss (the longer the run, the
greater the loss).
Cisco recommends a high-quality, low-loss cable for use with the lightning arrestor.
Grounding the Access Point
The AP must be grounded before connecting power.
In all outdoor installations, you must follow these steps to ground the case properly:
Procedure
Step 1
If using insulated 6-AWG copper ground wire, strip the insulation required for the grounding lug.
Step 2 Use the appropriate crimping tool to crimp the bare 6-AWG copper ground wire to the supplied grounding
lug.
Note
Step 3
Open the anti-corrosion sealant (supplied) and apply a liberal amount over the metal surface called the Ground
Pad, where the ground strap screw holes are located.
Step 4
Connect the grounding lug to the AP grounding screw holes using the supplied two Phillips head screws (M4
x10–mm) with lock washers. Tighten the grounding screw with 22 to 24 lb-in (2.5 to 2.7 Nm) of torque.
Step 5 If necessary, strip the other end of the ground wire and connect it to a reliable earth ground, such as a grounding
rod or an appropriate grounding point on a metal streetlight pole that is grounded.
Figure 75: Position of the Ground Pad on the Right Side of the AP
Cisco Catalyst 9124AX Series Outdoor Access Point Hardware Installation Guide
66
Ground lug
The grounding lug and hardware used must comply with local and national electrical codes.
Installation Overview