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Site Guidelines and Requirements

You must install the device in a rack or cabinet in a dry, clean, well-ventilated, and temperature-controlled environment.

Follow these environmental guidelines:

  • The site must be as dust-free as possible because dust can clog air intake vents and filters, reducing the efficiency of the device cooling system.

  • Maintain ambient airflow for normal device operation. If the airflow is blocked or restricted, or if the intake air is too warm, the device might overheat, and the router temperature monitor might shut down the device to protect the hardware components.

Site and Electrical Guidelines

General Site Installation Guidelines

Efficient device operation requires proper site planning and maintenance. It also requires proper layout of the equipment, rack or cabinet, 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 the prescribed airflow guidelines to ensure that the cooling system functions properly. Ensure 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.

Electrical Wiring Guideilnes

Warning:

You must provide a properly grounded and shielded environment and use electrical surge-suppression devices.
Table 1: Electical Wiring Guidelines
Site Wiring Factor Guidelines
Signaling limitations

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 can damage unshielded conductors and electronic devices.
Radio frequency interference

To reduce or eliminate RFI from your site wiring, you can:

  • Use a twisted-pair cable with a good distribution of grounding conductors.

  • If you must exceed the recommended distances, use a high-quality twisted-pair cable with one ground conductor for each data signal when applicable.
Electromagnetic compatibility

If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly from lightning or radio transmitters, seek expert advice.

Strong sources of electromagnetic interference (EMI) may cause the following problems:

  • Destruction of the signal drivers and receivers in the device

  • Equipment damage due to power surge in electrical lines

Clearance Requirements

When planning the site for installing the device, ensure that there is sufficient space around the installed chassis.

  • For the operating temperature of the device to be optimal, the airflow around the chassis must be unrestricted.

  • For service personnel to remove and to install hardware components, and to accommodate the interface and power cable bend radius, there must be adequate space at the front and rear of the appliance.

  • If you are mounting the appliance in a rack with other equipment, or if you are placing it on the desktop near other equipment, ensure that the exhaust from other equipment does not blow into the intake vents of the chassis.