Ranging, Discovery, And Activation Of Onts; Onu Activation - Alcatel-Lucent 7302 Information Manual

3 — ONT and MDU general and interface technical specifications
Standards and
amendments
IEEE 802.11n
(2 of 2)
3.13

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.

ONU activation

The activation procedure is performed by the exchange of upstream and downstream
flags and Physical Layer Operations Administration and Maintenance (PLOAM)
standard messages defined for GPON, as follows:
1 The ONT receives the requested GPON operating parameters from the OLT.
2 The ONT adjusts it parameters accordingly.
3 The OLT system discovers the serial number of a new connected ONT.
4 The OLT system assigns an ID to the ONT.
5 The OLT system measures the round-trip delay of the ONT transmission.
6 The OLT system notifies the ONT of the equalization delay.
7 The ONT adjusts the transmission phase to the notified value.
3-26 November 2013
Description
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
Alcatel-Lucent 7302 ISAM | 7330 ISAM FTTN | 7360 ISAM FX ONT R04.06.02
Edition 01 3FE 55873 AAAA TCZZA
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