I-021G-P And I-241G-Q Functional Blocks - Alcatel-Lucent 7302 Information Manual

23 — I-021G-P and I-241G-Q unit data sheet
For the I-241G-Q indoor ONT, contact your Alcatel-Lucent technical support
representative for more information.
The following power supply supports the I-241G-Q indoor ONT. Click on the data
sheet link for more information.
•
DVE 24 W ac/dc switching power adapter unit data sheet
23.9

I-021G-P and I-241G-Q functional blocks

I-021G-P indoor ONTs transmit Ethernet packets to two RJ-45 Ethernet ports and
video traffic to one F-type coaxial connector while I-241G-Q indoor ONTs transmit
voice packets to two RJ-11 POTS ports, Ethernet packets to four RJ-45 Ethernet
ports and video traffic to one F-type coaxial connector.
ONT SoC technology serves as the main hardware block for I-021G-P and I-241G-Q
indoor ONTs. ONT SoC technology consists of five key elements:
•
GPON MAC
The Gigabit Passive Optical Network Media Access Control (GPON MAC)
element on the SoC terminates the GPON interface using an optical triplexer.
This interface supports GPON as described in G.984.3 (GPON TC Layer) ITU
specification.
•
Ethernet MAC
The SoC provides up to two GE MACs.
•
DSP interface (I-241G-Q ONT only)
The Digital Signal Processor (DSP) provides voice processing for 2 POTS lines
with the 3-way calling. The DSP has a dedicated 64 kbyte instruction cache and
shares a 32 kbyte data cache with the Control Processor.
•
Control Processor
The Control Processor features an integral memory management unit that
supports a dedicated 64 kbyte instruction cache and shares a single 32 kbyte data
cache with the DSP. The Control Processor and DSP also include a single channel
Data Management Application (DMA) controller with a 4 kbyte read ahead
low-latency Dynamic Random Access Memory (DRAM) access port. The
processors typically run at 400 MHz.
•
Switch matrix
The Switch matrix provides an integrated data channel between the two GE
MACs, the GPON MAC, the MoCA MAC, the DSP, the control processor, and
the other integrated elements such as flash memory, DRAM, and the local bus
controller.
These ONTs can also interact with additional hardware components to support
functionality not provided by the SoC technology.
23-10 November 2013 Alcatel-Lucent 7302 ISAM | 7330 ISAM FTTN | 7360 ISAM FX ONT R04.06.02
Edition 01 3FE 55873 AAAA TCZZA
ONT Product Information Guide