3Com 3CRWEASY96A Manual de inicio rápido - Página 2

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309-2273-001AA.fm Page 2 Monday, February 3, 2003 4:54 PM

The following illustration shows the point-to-multipoint topology (also known as Infrastructure Network

Mode) using an omnidirectional antenna atop the central building, (which is attached to the central AP

inside) with a 3Com Wireless LAN bridge mounted on the other buildings.

Before you start

NOTE: This equipment must be installed in compliance with local and national building

codes, regulatory restrictions, and FCC rules. For the safety of people and equipment, only

professional network personnel should install the bridge, cables, and antennas.

If you encounter problems while installing the bridge, insert the installation CD into your computer and

review the installation information in the User Guide.

Make sure that you have the following items ready for the installation:

For a point-to point conﬁguration, two 3Com outdoor bridges.

For a point-to-multipoint conﬁguration, one 3Com 11Mbps Wireless LAN Access Point

8000 (or other Wi-Fi compliant access point) with an omnidirectional antenna for one

building, and one 3Com outdoor bridge for each other building.

Mounting hardware (supplied with each bridge).

Properly grounded outdoor mast or wall mount.

Lightning arrestor properly grounded at each building in the topology.

NOTE: A lightning arrestor will not prevent damage from a direct lightning strike. It will,

however, protect networking equipment inside the building (as well as the people working

there) from lightning-induced surges that travel over Ethernet cables. To avoid damage from

direct lightning strikes, mount the bridge at least 1 Meter (3 feet) below the top of the

mast or pole.

Outdoor rated category 5 Ethernet cable (3Com part number 3CWE487 recommended).

If you do not have IEEE 802.3af power-over-Ethernet LAN equipment, use the 3Com

Integrated Power-over-Ethernet power supply and power cord that comes with the bridge.

If your LAN equipment complies with the IEEE 802.3af power-over-Ethernet standard, you

can connect directly to the equipment, and the power supply is not needed.