Cisco 5509 - Catalyst Chassis Switch Руководство по установке - Страница 21
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The grounding lug must be NRTL listed and compatible with copper conductors. Only copper conductors
Note
(wires) must be used and the copper conductor must comply with National Electrical Code (NEC) for
ampacity.
To attach the grounding lug and cable to the chassis, follow these steps:
Use a wire-stripping tool to remove approximately 0.75 inch (19 mm) of the covering from the end of
Step 1
the grounding cable.
Insert the stripped end of grounding cable into the open end of the grounding lug.
Step 2
Use the crimping tool to secure the grounding cable in the grounding lug.
Step 3
Remove the adhesive label from either the right or left grounding pad on the chassis.
Step 4
Place the grounding lug against the grounding pad so that there is solid metal-to-metal contact, and insert
Step 5
the two M4 screws with washers through the holes in the grounding lug and into the grounding pad.
Ensure that the lug and cable do not interfere with other equipment.
Step 6
Prepare the other end of the grounding cable and connect it to an appropriate grounding point in your
Step 7
site to ensure adequate earth ground.
Preventing ESD Damage
Electrostatic discharge (ESD) damage occurs when electronic cards or components are improperly
handled and can result in complete or intermittent failures.
Always use an ESD-preventive wrist or ankle strap and ensure that it makes good skin contact. Connect
the strap to one of the following:
•
•
Caution
Periodically check the resistance value of the antistatic strap. The measurement should be between 1 and
10 megohms (Mohms).
Figure 18
78-18998-01
ESD wrist strap connector (see
Any unpainted surface on the chassis
ESD Wrist Strap Connector Location
Cis co 550
0 Ser ies
Wir ele ss
Co ntr olle
r
RP SP
USB 0 USB
CONSO LE
1
EN
EN
1
2
3
4
5
Mo del 550
6
7
8
8
PS1 PS2
SYS ACT
Figure 18
for the connector location)
Cisco 5500 Series Wireless Controller Installation Guide
Unpacking and Installing the Controller
21