Huawei S5700 Series Hardware Description page 200

S5700 Series Ethernet Switches
Hardware Description
Indicator Description
The S5701-28X-LI-24S-AC has the same types of indicators as the S5700-28X-LI-24S-AC.
For details, see
Power Supply Configuration
The S5701-28X-LI-24S-AC 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 3-40
power module (PWR) receives power from an external power source and provides a 12 V
output to the chassis.
Figure 3-40 Power supply mode of a built-in AC power module
Motherboard
L: live wire
Heat Dissipation
The S5701-28X-LI-24S-AC has built-in fans for forced air cooling. The airflow direction is
left-to-right.
Technical Specifications
Table 3-108
Issue 24 (2016-08-12)
Indicator
shows the power supply mode of a built-in AC power module. The built-in AC
PWR
N: neutral wire
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 S5701-28X-LI-24S-AC.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description.
12V GND
L N PGND
PGND: protection ground
4
3
2
1
Cold air
Hot air
GND: 12 V reference ground
3 Chassis
186