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.
l
System clock unit
The system clock unit of the MPU provides NPUs and PICs with reliable and synchronous
SDH clock signals.
The MPUs support the clock that complies with IEEE 1588v2.
l
System maintenance unit
The system maintenance unit of the MPU collects monitoring information, remotely or
locally tests system units, or performs in-service upgrades on 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.
2.5.2 MPUK
shows the MPUK panel.
Figure 2-20
Appearance of the MPU panel
1. STAT indicator
2. ACT indicator
3. ETH ACT indicator
4. ETH interface
5. ETH LINK indicator
6. AUX interface
7. Console interface
8. CLK clock interface
9. TOD date interface
10. RS-485 interface
11. RESET button
Table 2-23
Description of the buttons and indicators on the MPU panel
Indicator/
Button
Description
STAT indicator
If the indicator is steady green, the MPU is working properly.
If the indicator blinks green, the MPU is being registered.
If the indicator is steady red, the hardware of the MPU is faulty.
If the indicator is off, the MPU is not powered on or fails to be registered.
HUAWEI CX600-X1-M/CX600-X2-M Series Metro
Services Platform
Hardware Description
2 CX600-X2-M8 Hardware Description
Issue 03 (2014-04-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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