Table of Contents
Advertisement
5 — SoC based ONT functional blocks
Voice subsystem
SoC based ONTs provide a maximum of four POTS lines for voice services and can
support either H.248 (Megaco) or session initiation protocol (SIP) signaling
protocols. All POTS ports on an ONT must be configured to use the same signaling
protocol. Signaling protocols can not be mixed.
SoC based ONTs support the following:
•
for ONTs with four POTS lines, two lines can have both 3-way and 2-way call
support, but the remaining two lines can support only 2-way calls
•
support for G.711, G.726, and G.729 CODEC; the support for G.729 requires
reduced channel number with software upgrade
•
fax per T.38 on POTS lines
The SoC based ONTs are compatible with all existing subscriber voice equipment
including analog phones with tone or rotary dial capabilities, cordless phones,
modems, fax machines, and caller ID boxes (Type I, Type II, and Type III).
Data and IP video subsystems over Ethernet interface
Data and IP video services are delivered through the Ethernet cable interface. The
Ethernet interface connects the subscriber premises equipment to the GPON.
A set-top box is required for the IP video service. The requirement for the television
set associated with the set-top box is that it must be able to receive and display analog
broadcasts on channel 3 or 4.
5-4
Figure 5-2 ONT with a diplexer
Power
Converter
GPON
Diplexer
July 2008
ONT Product Information Manual Edition 01
POTS (4)
SOC
Ethernet (2)
Alcatel-Lucent 7342 ISAM FTTU ONT R04.05.06
RJ-11
RJ-45
18783
3FE 51892 AAAA TCZZA
Advertisement
Table of Contents
