Alcatel-Lucent 7342 - Time Calibration; Soc Onts with RF Video Subsystem

5 — SoC based ONT functional blocks
Alcatel-Lucent 7342 ISAM FTTU ONT R04.05.06 July 2008 5-5
3FE 51892 AAAA TCZZA Edition 01 ONT Product Information Manual
The Ethernet port can be set to the following:
• 10/100/1000BASE-T auto negotiation
• 10/100/1000BASE-T half duplex
• 10/100/1000BASE-T full duplex
• 10BASE-T auto-sensing
• 10BASE-T half duplex
• 10BASE-T full duplex
• 100BASE-T auto-sensing
• 100BASE-T half duplex
• 100BASE-T full duplex
• 1000BASE-T auto-sensing
• 1000BASE-T half duplex
• 1000BASE-T full duplex
The ONTs supports IP video service using the Internet Group Management Protocol
(IGMP). The IGMP snooping function supports:
• the ability to enable and disable IGMP per Ethernet and MoCA port
• the ability to age out multicast MAC addresses in the IGMP table
• G.984.3 compliant multicast using a single GEM port-ID for all video traffic (as
mandated by G.984.3)
• up to of 64 video multicast streams per ONT
Time calibration
The outdoor ONT derives accurate time calibration from a series of NTP servers. The
ONT communicates with the NTP servers using the NTP protocol and authenticates
NTP servers with a provisionable security key.
If NTP is not used, the ONT receives time calibration from the OLT.
5.4 SoC ONTs with RF video subsystem
For SoC based ONTs that support RF video, the diplexer is replaced with a triplexer.
The triplexer is an optical module that performs optical and electrical conversion and
interfaces with the GPON MAC on the SoC. The triplexer also forwards video
overlay signals to an RF video amplifier that is enabled or disabled by the SoC
control processor. The RF video service is connected to the subscriber equipment
using an F-type coaxial connector.
Note 1 — For ONTs that have SoC technology on-board, only one
Ethernet UNI port at a time can be configured for IPTV and multicast
streams.
Note 2 — For ONTs that have a MoCA connection and an Ethernet
port, the Ethernet port or the MoCA connector can be used for data
and IP video, but both cannot be used at the same time.