Huawei SmartAX MA5603T - Page 607

Working Principle
Figure 3-114 Working principle of the H807ADPE board
H807ADPE
B
a
c
k
p
l
a
n
e
C
o
n
n
e
c
t
o
r
-48V
DC
power
Power
module
Voltage required
by the board
Clock
module
Clock required
by the board
Control
board
Clock
signal
Service
signal
Control
signal
Power
signal
Backplane
Front panel
GE
Control
module
Interface
module
Forwarding module
Protection module
DC
block
Protector
PSTN
PSTN0
PSTN1
ATU-R
LINE0
LINE1
SPL
module
The basic working principle of the H807ADPE board is as follows:
l The control module loads the board software, controls the running of the board, and
manages the entire board.
l The protection module protects and isolates the board from lightning strikes. The DC
block isolates the direct current. The protector protects the high voltage.
l The splitter module separates POTS signals from ADSL2+ signals over the subscriber
line.
l The interface module supports two functions:
– In the upstream direction, the interface module converts line signals into a cell flow,
aggregates the flow to the forwarding module, and then reorganizes the flow into
ATM packets.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
3 Board
Issue 24 (2018-07-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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