12
Introduction to the Extricom Wireless LAN System
Access Points with Connectors for External Antennas
Some applications may require an access point capable of connecting to external antenna(s). The
EXRP-20E/EXRP-40E, and EXRP-40En accommodate this requirement. The EXRP-20E/EXRP-
40E have the same electronics as the EXRP-20/40 (respectively), but with a metal, plenum-rated
casing, and connectors for attaching external antennas. The EXRP-20E contains two 802.11a/b/g
radios and has four external antenna connectors. The EXRP-40E contains four 802.11a/b/g radios
and has eight external antenna connectors. The EXRP-40En contains two 802.11a/g/n radios and
two 802.11a/b/g radios. The EXRP-40En has ten external antenna connectors.
An external antenna may be desired to make the AP less visible by mounting it in the plenum. There
may also arise situations where, to ensure connectivity and service levels within a complex
coverage environment, directional antennas may be needed, rather than the omni-directional
antennas that are standard inside Extricom integrated antenna APs. In such cases, the antennas may
also be located at some distance from the AP in order to cover a specific area.
Figure 9: EXRP-20E/40E access points
The EXRP-20E/40E and EXRP-40En APs are connected to the Extricom WLAN Switch via
standard Cat5e/6 cables, in exactly the same manner as integrated antenna AP models. The APs are
powered by the standard 802.3af Power over Ethernet (PoE), but can be powered by an external
power supply if desired.
An antenna with an RP-SMA plug (male) connector can be connected to the EXRP-20E/40E and
EXRP-40En . For purposes of product homologation testing, Extricom used a “Rubber Duck”-type
antenna, specifically the Netgate 2.4-2.5 / 5.1-5.9 GHz Dual Band Rubber Duck RP-SMA (part
number: ANT-2458-5RD-RSP). More specifications on this antenna can be found at
http://www.netgate.com/product_info.php?products_id=386
.
!
With EXRP-20E/40E/40En - Use only xPVC or similar jacket cable which is NEC
Article 725 and 444 Compliant and plenum rated per NFPA 262 (UL 910) standard
Содержание EXRP-20E
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