Juniper Systems Allegro CX Manual - Manual (Page 278)

278 Allegro CX Owner’s Manual
802.11b Expansion Pod
An Allegro using the 802.11b expansion pod offers the fl exibility
and benefi ts of being connected to a Wireless Local Area Network
(WLAN). The 802.11b (also referred to Wi-Fi) is a variant to the
802.11 series that applies to WLAN.
A WLAN is a data communication system used to replace or
extend a wired LAN system. A WLAN system provides additional
functionality by using radio frequency technology to transmit and
receive data over the air, through walls, ceilings, and even cement
structures, without wire cabling.
A WLAN provides all of the benefi ts and features of established
LAN technologies like Ethernet, but without the limitations of being
attached to a cable. An Allegro using 802.11b provides signifi cantly
increased freedom and fl exibility for both data collection applications
and the people collecting the data.
An Allegro using the 802.11b expansion pod with a Cisco Aironet 350
card offers the following features:
Superior range and throughput
Indoors: 130 feet (40m) at 11 Mbps and 350 feet (107m) at 1 Mbps
Outdoors: 800 feet (224m) at 11Mbps and 2000 feet (610m) at 1
Mbps, up to 5000 feet with external antenna on access point
Secure network communications
World mode for international roaming and reduced range
The 802.11b provides 11 Mbps data transmission in the 2.4 GHz band
under optimal conditions. Depending on the amount of surrounding
interference such as trees, walls, people, etc., the transmission rate
can fall back to 5.5, 2 or 1 Mbps.
The Allegro with an 802.11b expansion pod is shipped with the
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