Function Overview; Panel - Huawei Quidway S3700 Series Manual

Quidway S3700 Series Ethernet Switches
Hardware Description

2.3.1 Function Overview

The 170 W DC power supply units are used on S3700-26C-HI. A power supply unit provides
+12 V DC power, and it has the following functions:
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2.3.2 Panel

Figure 2-6
Figure 2-6 Appearance of the 170 W DC power supply unit
1. Handle
Table 2-1
Table 2-1 Description of the 170 W DC power indicators
Name
INPUT
OUTPUT
Issue 02 (2011-11-21)
EMC filtering and surge protection
Protection against reversed connection, input and output overcurrent, input and output
overvoltage, short circuit, and overtemperature
Various alarms, for example, the alarm triggered when there is no power input or output
NOTE
Only S3700-26C-HI support the 170 W DC power supply unit.
shows the appearance of the 170 W DC power supply unit.
1 2
describes the meanings of the indicators.
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3
2. Indicator
Status
Green
Off
Green
Blinking green
2 Power Supply Unit
3. DC jack
Description
The DC input power is within
range.
The DC input power is out of
range or no DC input power.
The DC output power is
within range.
The output power is out of
range, for example,
overvoltage, overcurrent, or
short circuit occurs.
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