BelAir100SN User Guide
System Overview
May 31, 2010
Confidential
Document Number BDTM11001-A01 Released
System Overview
The BelAir100SN is a Wi-Fi access point that meets IEEE 802.11n standards. It
is fully interoperable with existing 802.11a/b/g standards, providing a
transparent, wireless high speed data communication between the wired LAN
and fixed or mobile devices.
The BelAir100SN can operate as a standalone device, or participate in a BelAir
Networks mesh as an edge node or to terminate the mesh.
The 802.11n Wi-Fi radios provide user traffic wireless access to the
BelAir100SN and can form point-to-point, point-to-multipoint, or
multipoint-to-multipoint mesh backhaul links.
All the members of a multipoint-to-multipoint mesh use a proprietary
algorithm based on RSTP to automatically control the creation of loops within
the mesh. This loop management function is fully transparent to customers and
under normal operating conditions, you do not need to modify any settings.
Hardware
Description
shows the relationship between the main BelAir100SN
hardware modules. The BelAir100SN consists of the following modules:
• one Dual Radio Unit (DRU) providing:
—a wireline 10/100/1000 Base-TX Ethernet interface to the Internet
—a 2.4 GHz Wi-Fi radio and a 5 GHz Wi-Fi radio using enhanced
performance links. Each radio can act as an Access Point (AP) or provide
backhaul links. An AP provides user traffic wireless access to the
BelAir100SN. Backhaul links connect to other BelAir radios to create a
radio mesh.
• a Power Protection Module (PPM) providing a wireline DOCSIS interface
and a plant interface for power
• a Cable Modem (CM)
• a Power Supply Unit (PSU)
• external antennas
• one environmental enclosure
• an external connector field