Proxim AP-4000 Manuel D’Utilisation

Page de 235
Installation and Initialization
AP-4000 Series User Guide
AP-4000 Series Hardware Description
20
Figure 2-2 AP-4000/4000M/4900M Antenna Connectors
Connectors 1 and 2 are for the 802.11b/g radio; connectors 3 and 4 are for the 802.11a radio. When the AP is mounted 
on a wall, connectors 1 and 4 correspond to the horizontally polarized internal antenna, providing a coverage pattern 
parallel to the wall; connectors 2 and 3 correspond to the vertically polarized internal antenna, providing a coverage 
pattern parallel to the ceiling/floor. When the AP is mounted to a ceiling, connectors 1 and 4 correspond to the vertically 
polarized internal antenna, and connectors 2 and 3 correspond to the horizontally polarized internal antenna. Plugging an 
external antenna in to the antenna connector disables the corresponding internal antenna on the wireless interface. 
The AP continues to support antenna diversity with external antennas connected. With one external antenna connected 
to one of the two antenna connectors on a radio, one internal antenna and one external antenna are used for antenna 
diversity. With two external antennas connected, both external antennas are used for antenna diversity, and both internal 
antennas are disabled. 
With external antennas connected, you may wish to manually select a particular antenna for use. To do so, disable 
antenna diversity by manually selecting which antenna to use for each wireless interface through the Command Line 
Interface. Se
 for information.
For a list of recommended antennas, see 
. For installation instructions, 
see 
.
4.9 GHz Antenna
On the AP-4900M, antenna connector 3 is equipped with a pigtail adaptor for connection to a 4.9 GHz antenna. When the 
AP-4900M is configured to operate in the 4.9 GHz Public Safety operational mode, antenna diversity is automatically 
disabled, and antenna 3 is statically configured for use. Connecting an external antenna to this antenna port disables the 
corresponding internal antenna. For a list of recommended antennas, see 
. For installation instructions, see 
Active Ethernet
The AP-4000/4000M/4900M is equipped with an 802.3af-compliant Active Ethernet module. Active Ethernet (AE) 
delivers both data and power to the access point over a single Ethernet cable. If you choose to use Active Ethernet, there 
is no difference in operation; the only difference is in the power source.