General Site Guidelines
Efficient device operation requires proper site planning and maintenance and proper layout of the equipment,
rack or cabinet (if used), and wiring closet.
To plan and create an acceptable operating environment for your device and prevent environmentally
caused equipment failures:
•
Keep the area around the chassis free from dust and conductive material, such as metal flakes.
•
Follow prescribed airflow guidelines to ensure that the cooling system functions properly and that
exhaust from other equipment does not blow into the intake vents of the device.
•
Follow the prescribed electrostatic discharge (ESD) prevention procedures to prevent damaging the
equipment. Static discharge can cause components to fail completely or intermittently over time.
•
Install the device in a secure area, so that only authorized personnel can access the device.
Site Electrical Wiring Guidelines
Table 24 on page 80 describes the factors you must consider while planning the electrical wiring at your
site.
WARNING: You must provide a properly grounded and shielded environment and use
electrical surge-suppression devices.
Avertissement Vous devez établir un environnement protégé et convenablement mis
à la terre et utiliser des dispositifs de parasurtension.
Table 24: Site Electrical Wiring Guidelines
Guidelines
Site Wiring
Factor
If your site experiences any of the following problems, consult experts in electrical surge suppression
and shielding:
•
Improperly installed wires cause radio frequency interference (RFI).
•
Damage from lightning strikes occurs when wires exceed recommended distances or pass between
buildings.
•
Electromagnetic pulses (EMPs) caused by lightning damage unshielded conductors and electronic
devices.
Signaling
limitations
80
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