Huawei S5700 Series Hardware Description page 210

S5700 Series Ethernet Switches
Hardware Description
The mini USB port is connected to a console for on-site configuration. When both the Mini
USB and console port have a cable connected, only the Mini USB port works.
Indicator Description
The S5700-52X-LI-DC has the same types of indicators as the S5700-28X-LI-AC. For
details, see
Power Supply Configuration
The S5700-52X-LI-DC has a built-in power module and does not support pluggable power
modules. It can connect to an RPS1800 power supply for power redundancy.
Figure 3-44
power module (PWR) receives DC power from an external power source and provides a 12 V
output to the chassis.
Figure 3-44 Power supply by a single DC power module
Motherboard
NEG: negative cable
Heat Dissipation
The S5700-52X-LI-DC has built-in fans for forced air cooling. The airflow direction is left-
to-right.
Technical Specifications
Table 3-118
Issue 24 (2016-08-12)
Indicator Description.
shows the power supply mode of a single DC power module. The built-in DC
PWR
PWR
RPS
SYS
STAT
SPED
STCK
MODE
NOTE
This figure only shows the airflow direction and does not depict the actual device.
lists technical specifications of the S5700-52X-LI-DC.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
12V GND
NEG RTN
RTN: positive cable
4
3
2
1
Cold air
Hot air
GND: 12 V reference ground
3 Chassis
196