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Getting Started
SYSTIMAX® AirSPEED™ AP542
User Guide
16
The Dual Band SEA is a dual band indoor antenna that works with both 2.4 GHz (802.11b/g) and 5 GHz (802.11a)
radios. The Dual Band SEA can be used with either radio on the AirSPEED AP542. The Dual Band SEA allows for
better antenna placement to enhance the signal for installations in the ceiling or in RF unfriendly environments.
Antenna Diversity Options
With one Dual Band SEA connected to one of the two external antenna connectors on a radio, the AP supports
antenna diversity (one embedded antenna and one external SEA) and one of the two embedded antennas is disabled.
With two Dual Band SEAs connected to the two external antenna connectors, the AP supports antenna diversity (two
external SEAs), and both embedded antennas are disabled.
Power over Ethernet (PoE)
The AirSPEED AP542 is equipped with an 802.3af-compliant Power over Ethernet (PoE) module. Power over Ethernet
delivers both data and power to the Access Point over a single Ethernet cable. SYSTIMAX recommends using a
midspan Power over Ethernet device to power the AP as an alternative to the power adaptor. The use of such device
will not affect the operation of the AP.
–
The Power over Ethernet (PoE) integrated module receives ~48 VDC over a standard Category 5e/6 Ethernet
cable.
–
To use PoE, you must have a midspan PoE device (also known as a power injector) connected to the network.
–
The cable length between the midspan PoE device and the Access Point should not exceed 100 meters
(~325 feet). The midspan PoE device is not a repeater and does not amplify the Ethernet data signal.
–
If connected to a midspan PoE device and AC power simultaneously, the Access Point draws power from
Power over Ethernet.
Refer to
Power over Ethernet Interface
in the
Hardware Specifications for the SYSTIMAX AirSPEED AP542
section for
more information.
LED Indicators
The top panel of the AirSPEED AP542 has the following LED indicators.
Figure 2-2
LED Indicators on the AirSPEED AP542 Top Panel
Power
Wireless
Interfaces
Ethernet