Mpug - Huawei NE40E-X1 Hardware Description

HUAWEI NE40E-X1 & NE40E-X2 Universal Service
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Hardware Description
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2.5.2 MPUG

Figure 2-13
Figure 2-13 Appearance of the MPUG panel
1. USB indicator
5. Console interface
9. ETH ACT indicator
Issue 02 (2011-09-10)
The MPU manages the NPUs and communicates with the NPUs. The MPU implements
outband communication between boards. The MPU manages and carries out
communication between the NPUs and slave MPU through the outband management bus.
The MPU is also responsible for data management. The system configuration data, booting
file, upgrade software, and system logs are stored on the MPU. The Compact Flash (CF)
card on the MPU functions as a mass storage device for saving data files including system
files, configuration files, and logs, and is not hot-swappable.
The MPU manages and maintains the device. Through management interfaces such as serial
interfaces and network interfaces on the MPU, you can manage and maintain the device.
System clock unit
The system clock unit of the MPU provides NPUs and PICs with reliable and synchronous
SDH clock signals.
The MPUs supports the clock that complies with IEEE 1588v2.
System maintenance unit
The system maintenance unit of the MPU collects monitoring information, remotely or
locally tests system units, or performs in-service upgrade of system units.
Through the Monitorbus, the MPU collects the operation data periodically. The MPU
produces controlling information, such as detecting the board presence and adjusting the
fan speed.
NOTE
The MPUs work in 1:1 hot backup mode, improving system reliability.
shows the MPUG panel.
2. USB interface
6. AUX interface
10. RST button
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2 NE40E-X2 Hardware Description
3. RS-485 interface
7. ETH LINK indicator
11. ACT indicator
4. BITS clock interface
8. ETH interface
12. STAT indicator
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