3Com 09-1765-001 manual Requesting a, Site Survey

Requesting a Site Survey 7

Site Electrical AirConnect APs draw power from wall outlets or over CAT 5 cabling using the Considerations AirConnect PowerBASE-T adapter. AP performance is subject to degradation due

to inherent or random electrical problems or site-specific disturbances.

The following AirConnect AP electrical installation alternatives are listed from optimal to preferred for a particular installation area:

1Isolated ground circuit with online, uninterruptable power supply (UPS) that also acts as filter and surge suppressor

2Isolated ground circuit with surge suppressor

3Dedicated circuit with UPS

4Dedicated circuit with surge suppressor

3Com recommends using one of the preceding installation alternatives when using a Network Controller Unit. Deviation from theses options can cause data loss and serious transmissions problems.

NOTE: The AP must be provided with power 24 hours a day. 3Com recommends that AP power never be provided from an Energy Management System.

If a nondedicated circuit is necessary, 3Com recommends that the circuit does not support the following:

■Hard wired devices

■Devices with components intended or known to produce heat (space heaters, laser printers, heat guns, soldering irons, etc.)

■Single devices drawing more than 20% of the rated value of the circuit

■Multiple devices drawing a total of more than 60% of the rated circuit value

Requesting a	The Site Survey Request Form contains detailed information about a customer, the
Site Survey	3Com Sales Associate representing that customer, an updated floor plan of the
	customer facility, host operating system considerations, and the quantity and type
	of AirConnect components being installed.