The basic working principles of the H806VPEA board are as follows:
l The control and service integration module, including the service processor and
peripheral memory, manages the H806VPEA board and service boards, communicates
with the SPM subrack through a serial port, calculates the link signal compensation for
service boards, achieves the energy-saving control, detects the slot information and types
of service boards, performs the clock frequency-dividing detection, and records the
restart information.
l The switching module provides four GE ports, for the interconnection between the main
control board, control and service integration module, monitoring network port.
l The BITS clock daughter board recovers the 2 Mbit/s clock signals or shapes the 2 MHz
clock signals, which can function as the system clock source.
l The power module supplies power to other function modules of the board.
l The clock module provides the working clock for other function modules of the board.
The service process of the H806VPEA board is as follows:
The H806VPEA board provides 120GE bus signals, and sends these signals to each service
board in a star topology (20GE signals for each service board). This method enables the
H806VPEA board to calculate the link signal compensation for each service board.
Front Panel Port
Alarm digital
parameters port
Connected to an external
port (used for detecting
alarm digital parameters)
or to a control output port
BITS/TOD
Connected to the
BITS clock source,
time source, or lower
stratum clock
GE transparent
transmission port
Connected to the
Ethernet port of the
peer device
SPM 485 serial port
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.
729
To Next Page
Loading...
Need help?
General
