Alcatel-Lucent 7342 - Figure 6-1 VDSL2 LP MDU ONT Functional Blocks

6 — LP MDU, MDU, and modular ONT hardware functional blocks
Alcatel-Lucent 7342 ISAM FTTU ONT R04.05.06 July 2008 6-3
3FE 51892 AAAA TCZZA Edition 01 ONT Product Information Manual
The LP MDU ONT motherboard and service board contain the following functional
blocks:
• optical functional block
• GPON MAC FPGA
• gigabit Ethernet multilayer switch
• on-board controller
• test and diagnostic functions
• complex programmable logic device
• network synchronization
• time calibration
• voice subsystem
• RF video amplifier
The VDSL2 LP MDU ONT motherboard contains the following functional blocks
that are contained on the service board of the GE LP MDU ONT:
• VoIP DSP devices
• Alexandria FPGA
• gigabit Ethernet physical layer interface (PHY)
Figure 6-1 illustrates the motherboard and service board functional blocks for the
VDSL2 LP MDU ONT.
Figure 6-1 VDSL2 LP MDU ONT functional blocks
Figure 6-2 illustrates the motherboard and service board functional blocks for the GE
LP MDU ONT.
LVDS
GMII
SERDES
POTS NTR
Alexandria FPGA
configuration
SS SMII
MII
TDM
Control
Bus
PCI
Bus
Control
Bus
Type F
connector
Optical
functional block
Clock
Triplexer
RF video
CDR/BMLD
-48 V power
Converter
VDSL
BME
VDSL
AFE
VDSL
IFE
OBC
GE
multilayer
switch
CODEC/SLIC
CODEC/SLIC
CODEC/SLIC
CODEC/SLIC
8
POT
S
Ports
4
VDSL
Ports
LD 2
CH
LD 2
CH
Alexandria
FPGA
DSP 8
channel
GPON
FPGA
1896
4