Alcatel-Lucent 7330 - Page 161

3 — ONT and MDU general and interface technical specifications
Alcatel-Lucent 7330/7302 ISAM FTTN R04.02.42a March 2011 3-21
3FE 54199 AAAA TCZZA Edition 01 ONT Product Information Guide
3.11 Ranging, discovery, and activation of ONTs
When the OLT system is ranging new ONTs, working ONTs must temporarily stop
transmissions. This is done by opening a ranging window to discover new devices.
Two activation/ranging methods supported by the system:
• Configured-S/N:
The serial number of the ONT is registered in advance at the OLT.
• Discovered-S/N:
The serial number of the ONT is not registered at the OLT. It requires an
automatic detection mechanism of the serial number of the ONT based on the
operator-assigned SLID that is provisioned locally at the ONT and at the OLT for
a match. In case a new ONT is detected, an ONT ID is assigned and the ONT is
activated.
There are three triggers for initiating the activation of an ONT:
• The network operator enables the activation process to start when it is known that
a new ONT has been connected.
• The OLT automatically initiates the activation process, when one or more of the
previously working ONTs are 'missing', to see if those ONTs can return to
service.
• The OLT periodically initiates the activation process, testing to see if any new
ONTs have been connected.
IEEE 802.11a An amendment to the 802.11 specification adding a higher data rate
of up to 54 Mb/s using the 5 GHz band
IEEE 802.11b An amendment to the 802.11 specification extending throughput to
up to 11 Mb/s using the 2.4 GHz band
IEEE 802.11e An amendment to the 802.11 specification defining a set of QoS
enhancements for wireless LAN applications through modifications
to the MAC layer
IEEE 802.11g An amendment to the 802.11 specification extending throughput to
up to 54 Mb/s using the same 2.4 GHz band as 802.11b
IEEE 802.11h An amendment to the 802.11 specification for spectrum transit
power management extensions that regulate interference with
satellites and radar using the 5 GHz frequency band
IEEE 802.11i An amendment to the 802.11 specification defining security
mechanisms for wireless networks
IEEE 802.11n An amendment to the 802.11 specification extending throughput
significantly to up to 600 Mbit/s with the use of four spatial streams
at a channel width of 400 MHz
Standards and
amendments
Description
(2 of 2)