Dc Power Supply Units; Function Overview - Huawei S5700 Series Hardware Description

S5700&S5710 Series Ethernet Switches
Hardware Description
Table 2-4 Technical specifications of the 150 W AC power supply unit
Item
Dimensio
ns (width
x depth x
height)
Weight
Rated
input
voltage
Maximu
m input
voltage
Maximu
m input
current
Maximu
m output
current
Maximu
m output
power
2.5 170 W DC Power Supply Units
This section describes the functions, appearance, switch, indicators, and technical specifications
of the S5700 170 W DC power supply unit.

2.5.1 Function Overview

The 170 W DC power supply units are used on S5700-28C-HI and S5700-28C-HI-24S. A power
supply unit provides +12 V DC power, and it has the following functions:
l
l
l
Issue 01 (2012-03-15)
S5700-2 S5700-28
8C-EI C-EI-24S
100 mm x 220 mm x 43 mm
0.8 kg
100 V AC to 240 V AC, 50/60 Hz
90 V AC to 264 V AC, 47 Hz to 63 Hz
3 A
12.5 A
150 W
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 S5700-28C-HI and S5700-28C-HI-24S support the 170 W DC power supply unit.
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S5700-2 S5700-5
8C-SI 2C-EI
2 Power Supply Unit
S5700-5 S5710-2 S5710-5
2C-SI 8C-EI 2C-EI
33