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Requesting a Site Survey 7
Site Electrical
Considerations
AirConnect APs draw power from wall outlets or over CAT 5 cabling using the
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:
1
Isolated ground circuit with online, uninterruptable power supply (UPS) that also
acts as filter and surge suppressor
2
Isolated ground circuit with surge suppressor
3
Dedicated circuit with UPS
4
Dedicated 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.
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
Site Survey
The Site Survey Request Form contains detailed information about a customer, the
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.
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.