M200 Integrated Access Device
Product Description
2 Structure
Issue 01 (2008-04-11)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
2-7
Power System
Item
Value
rectifier unit)
Efficiency
≥
89% (rated input, 50% to 100% load)
Temperature range
–5°C to +55°C
Cooling method
Forced air cooling, with the built-in fan
in the rectifier unit
Dimensions (W x H x
D)
482.6 mm x 43 mm x 240 mm
2.3.2 Lightning Protection Busbar
This topic provides the information about the functions of the lightning protection busbar in
the M200 cabinet and provides the related technical specifications of the lightning protection
busbar.
The M200 cabinet is equipped with a lightning protection busbar and need not be configured
with an extra maintenance socket.
Figure 2-4
shows the appearance of the lightning protection busbar.
Figure 2-4
Appearance of the lightning protection busbar
Functions of the lightning protection busbar are as follows:
2-level and 3-line indirect lightning protection at the level of 6000 A
Detection of the grounding and the polarity
10A overcurrent protection
AC filter
Power surge protection
2.3.3 DC Power Distribution Panel
The DC-powered M200 cabinet uses the DC power distribution panel to distribute the power.
Figure 2-5
shows the appearance of the DC power distribution panel.
