Huawei S5700 Series Hardware Description page 160

S5700 Series Ethernet Switches
Hardware Description
Figure 3-28 Power supply by a single DC power module
Motherboard
NEG: negative cable
Heat Dissipation
The S5700-28X-LI-DC has built-in fans for forced air cooling. The airflow direction is left-
to-right.
Technical Specifications
Table 3-74
Table 3-74 Technical specifications
Item
Memory (RAM)
Flash
Mean time between
failures (MTBF)
Mean time to repair
(MTTR)
Availability
Service port surge
protection
Issue 24 (2016-08-12)
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 S5700-28X-LI-DC.
Description
256 MB
200 MB
68.95 years
2 hours
> 0.99999
Common mode: ±6 kV
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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
146