Figure 3-13 Power supply mode of a built-in AC power module
Motherboard
GND12V
PWR
L N PGND
L: live wire N: neutral wire PGND: protection ground GND: 12 V reference ground
Heat Dissipation
The S5700-52P-LI-AC has built-in fans for forced air cooling. The airflow direction is left-to-
right.
1
2
3
4
MODE
STCK
SPED
STAT
SYS
RPS
PWR
Cold air
Hot air
NOTE
This figure only shows the airflow direction and does not depict the actual device.
Technical Specifications
Table 3-34 lists technical specifications of the S5700-52P-LI-AC.
Table 3-34 Technical specifications
Item
Description
Memory (RAM) 256 MB
Flash
l V200R001: 64 MB
l V200R002 and later versions: 200 MB
Mean time between
failures (MTBF)
39.26 years
Mean time to repair
(MTTR)
2 hours
Availability > 0.99999
Service port surge
protection
Common mode: ±6 kV
S5700 Series Ethernet Switches
Hardware Description
3 Chassis
Issue 24 (2016-08-12) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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