22 — I-020E-B, I-020E-H, and I-020G-F unit data sheet
Alcatel-Lucent 7302 ISAM | 7330 ISAM FTTN | 7360 ISAM FX ONT R04.06.02 November 2013 22-9
3FE 55873 AAAA TCZZA Edition 01
ONT Product Information Guide
The GPON connection performs a GPON transmission convergence (TC) layer
function. The GPON signal from the P-OLT terminates at a diplexer. The diplexer is
an optical module that performs optical and electrical conversion. The diplexer
interfaces with the GPON MAC on the SoC. Figure 22-4 shows an ONT with a
diplexer, four POTS, and two Ethernet ports.
Figure 22-4 ONT with a diplexer
ONT SoC technology serves as the main hardware block for these ONTs; see
Figure 22-5.
Figure 22-5 I-020x-x ONT hardware block
ONT SoC technology consists of five key elements:
• GPON MAC
The GPON MAC element on the SoC provides the GPON interface to the TC
layer via the optical diplexer or triplexer (if using RF video). This interface
supports the FSAN standards compliant GEM mode transport and provides AES,
FEC, and data fragmentation functionality over the GPON as described in
G.984.3 (GPON TC Layer) ITU specification.
Power
Converter
SOC
POTS (4)
Ethernet (2)
RJ-11
RJ-45
18783
Diplexer
GPON
Control
processor
Ethernet
MACs
Ethernet ports GPON
POTS ports
DSP
GPON
MAC
SoC
19421
SoC Bridge
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