Figure 3-54 Working principle of the H801ETHA board
H801ETHA
Switching
module
Interface
module
Control module
Power
module
Voltage
required by
the board
Clock
module
Clock
required by
the board
-48V DC
power
10GE/GE
8*GE
Control
board
Backplane
Service
signal
Clock
signal
Power
signal
Control
signal
Cascading
device
User side
B
a
c
k
p
l
a
n
e
C
o
n
n
e
c
t
o
r
The basic working principle of the H801ETHA board is as follows:
l The control module loads board software, manages and controls board running, and
reads information such as slot ID, version number, and board type.
l The interface module includes the daughter board connector and provides eight GE
ports.
l The switching module completes line rate switching for Ethernet packets.
l The power module supplies power to other functional modules of the board.
l The clock module provides working clock for functional modules on the board.
The service processing is as follows:
l In the downstream direction, the control board sends service data through the backplane
connector to the switching module for line-rate switching of the Ethernet packets. The
daughter board then implements service cascading.
l In the upstream direction, service data is sent to the switching module through the
daughter board, and then to the control board through the backplane.
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.
344
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