User's Guide

Table Of Contents
hwc_apstartup.fm
Configuring the Wireless AP
Wireless AP overview
9034530-02,
March 2010
HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide 89
5 GHz radio supporting the 802.11a standard – The 802.11a standard is an
extension to 802.11 that applies to wireless LANs and provides up to 54 Mbps in
the 5-GHz band. The 802.11a standard uses an orthogonal frequency division
multiplexing encoding scheme, rather than Frequency-Hopping Spread
Spectrum (FHSS) or Direct-Sequence Spread Spectrum (DSSS).
2.4 GHz radio supporting the 802.11b/g standards – The 802.11g standard
applies to wireless LANs and specifies a transmission rate of 54 Mbps. The
802.11b (High Rate) standard is an extension to 802.11 that specifies a
transmission rate of 11 Mbps. Since 802.11g uses the same communication
frequency range as 802.11b (2.4 GHz), 802.11g devices can co-exist with
802.11b devices on the same network.
The radios are enabled or disabled through the HiPath Wireless Assistant. Both
radios can be enabled to offer service simultaneously. For more information, see
Section 4.4.5.3, “Modifying Wireless AP 2610/2620 radio properties”, on page
152.
The Unlicensed National Information Infrastructure (U-NII) bands are three
frequency bands of 100 MHz each in the 5 GHz band, designated for short-range,
high-speed, wireless networking communication.
The Wireless AP supports the full range of 802.11a:
5.15 to 5.25 GHz – U-NII Low Band
5.25 to 5.35 GHz – U-NII Middle Band
5.47 to 5.725 GHz – UNII 2+
5.725 to 5.825 GHz – U-NII High Band
4.1.1.2 AP4102/4102C Access Points
The AP4102 and AP4102C access points are Enterasys manufactured access
points that run HiPath WLAN software. The AP4102/4102C access point has 2
integrated dual-band antennas. Diversity, which is the use of two antennas to
increase the odds that a better radio stream is received on either of the antennas,
is supported only with integrated antennas.
The available external antennas for the AP4102/4102C access point are:
Left antenna:
RBT4K - AG - IA, 2 dBi
RBTES - BG - M08M, 8dBi
RBTES - BG - P18M, 18 dBi
RBTES - BG - S1490M, 14 dBi