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HUAWEI CX600-8/16/X3/X8/X16 Metro Service Platform
Hardware Description
Figure 2-4
Figure 2-4 Signal flow transmission on the monitoring plane
The monitoring plane, like the control plane, supports bidirectional signal flows.
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Issue 03 (2013-11-30)
illustrates the principles of signal flow transmission on the monitoring plane.
Master MPU
Monitor
System
Control
maintenance
unit
Slave MPU
Monitor
System
Control
maintenance
unit
Board-to-MPU signal flow: implements monitoring. The system maintenance unit on each
MPU uses a MonitorBus to collect operating information on system units and generates
control information based on the unit-specific operating status.
MPU-to-board signal flow: implements control. An MPU delivers control information to
modules to monitor board information, such as the installation and operating status and fan
speed. The MPU also loads a bus to locally or remotely test or upgrade system units.
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Monitor
Uplink unit
Monitor
Control
unit
SFU
Monitor
Monitor
Control
unit
Monitor
Downlink unit
Control
Monitor
unit
2 Product Signal Flow Overview
11
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