Figure 3-52 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 S5700S-28P-LI-AC has no fans and uses natural heat dissipation.
Technical Specifications
Table 3-139 lists technical specifications of the S5700S-28P-LI-AC.
Table 3-139 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)
49.69 years
Mean time to repair
(MTTR)
2 hours
Availability > 0.99999
Service port surge
protection
Common mode: ±6 kV
Power supply surge
protection
±6 kV in differential mode, ±6 kV in common mode
Dimensions (W x
D x H)
442.0 mm x 220.0 mm x 43.6 mm (17.4 in. x 8.7 in. x 1.72 in.)
Weight ≤ 5 kg (11.02 lb)
Stack ports Not supported
RPS Supported
S5700 Series Ethernet Switches
Hardware Description
3 Chassis
Issue 24 (2016-08-12) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
221
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