Huawei NetEngine40E Hardware Description page 134

HUAWEI NetEngine40E Universal ServiceRouter
Hardware Description
Indicator
Figure 5-5
Figure 5-5 Plastic panel of the power module on the NE40E-8
Table 5-3
Table 5-3 Connection between the DC power cable and the terminal
Terminal
Identifier
RTN (+)
NEG (-)
PGND
NOTE
Functions
The power supply of the NE40E-8 have a primary straight-through output and a secondary
regulated voltage of -48 V DC output.
The power supply provides the following functions:

Issue 01 (2012-09-30)
Color
 The primary line supplies power for the NE40E system and boards.
 The secondary line supplies power for the fan module.
shows the plastic panel of the power module on the NE40E-8.
shows the connection between the DC power cable and the terminal.
Cable
Power ground cable
Power cable
Protection ground
cable
 RTN: Return
 NEG: Negative
 PGND: Protection Ground
The primary straight-through power provides protection against short circuits.
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Description
V DC to -78 V DC).
 The secondary power output is abnormal, like the power
fan fault, the overheated power module, and the
lightning prevention circuit fault.
Color
Black
Blue
Yellow and
green
5 NE40E-8 Chassis Overview
Connected Terminal
JG dual-hole crimp terminal
Not necessary to connect
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