Huawei S5700 Series Hardware Description page 144

S5700 Series Ethernet Switches
Hardware Description
Table 3-61 Power supply configurations
Power
Supply
Configuratio
n
No RPS used
RPS used
Figure 3-23
power module (PWR) receives power from an external power source and provides a 12 V
output to the chassis.
Figure 3-23 Power supply mode of a built-in AC power module
Motherboard
L: live wire
Heat Dissipation
The S5701-28TP-PWR-LI-AC has built-in fans for forced air cooling. The airflow direction is
left-to-right.
Technical Specifications
Table 3-62
Issue 24 (2016-08-12)
Available PoE
Power
184.8 W
184.8 W
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 S5701-28TP-PWR-LI-AC.
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Copyright © Huawei Technologies Co., Ltd.
Maximum Number of Ports (Fully Loaded)
l 802.3af (15.4 W per port): 12
l 802.3at (30 W per port): 6
l 802.3af (15.4 W per port): 12
l 802.3at (30 W per port): 6
12V GND
L N PGND
PGND: protection ground
4
3
2
1
Cold air
Hot air
GND: 12 V reference ground
3 Chassis
130