General Exterior Cleaning And Inspection; Appliance; Cables And Connectors; Adapter Cards - Cisco 1120 Installation Manual

Maintaining Your Site Environment

General Exterior Cleaning and Inspection

This section details the cleaning requirements for exterior surfaces of the appliance. It also provides
information on inspecting cables and adapter cards.
Never spray cleaning solution on the surfaces of the appliance. Over spray can penetrate into the
Caution
appliance and cause electrical problems and corrosion.

Appliance

Use a lint-free, nonabrasive cloth to perform cleaning. Do not use a solvent, abrasive cleaning agents, or
tissue paper. If the appliance is dirty (for example, with thick dust), use a soft damp cloth and gently
wipe the surface of the appliance.
Immediately wipe any water or liquid off from the appliance.
Dust and Particles
A clean operating environment can greatly reduce the negative effects of dust and other particles, which
act as insulators and interfere with the operation of an appliance's mechanical components. In addition
to regular cleaning, you should follow these guidelines to deter contamination of the appliance:
•
•

Cables and Connectors

Periodically inspect cables and connectors to and from your appliance periodically to see if they are
worn out or loose.

Adapter Cards

Check the connections on the adapter cards. Ensure that they are secured to the appliance and have not
been jarred loose or mechanically damaged.
Corrosion
The oil from a person's fingers, or prolonged exposure to high temperature or humidity, can corrode the
gold-plated edge connectors and pin connectors on adapter cards in the appliance. This corrosion on
adapter card connectors is a gradual process that can eventually lead to intermittent failure of
electrical circuits.
To prevent corrosion, you should avoid touching contacts on adapter cards. Protecting the appliance from
corrosive elements is especially important in moist and salty environments, which tend to promote
corrosion. Also, as a further deterrent to corrosion, the appliance should not be used in extreme
temperatures, as explained in the
Installation Guide for the Cisco 1120 Secure Access Control Server 4.2
E-2
Do not permit smoking anywhere near the appliance.
Do not permit food or drink near the appliance.
Appendix E Maintaining the Cisco 1120 Secure Access Control Server
Temperature, page E-3 section.
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