Huawei S5700 Series Hardware Description

Figure 3-28 Power supply by a single DC power module
Motherboard
GND12V
PWR
NEG RTN
NEG: negative cable RTN: positive cable GND: 12 V reference ground
Heat Dissipation
The S5700-28X-LI-DC 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 3-74 lists technical specifications of the S5700-28X-LI-DC.
Table 3-74 Technical specifications
Item
Description
Memory (RAM) 256 MB
Flash 200 MB
Mean time between
failures (MTBF)
68.95 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.
146

Huawei S5700 Series Specifications

General

Model	S5700 Series
Category	Switch
Power Supply	AC or DC
Fixed GE Ports	24/48 (depending on model)
PoE	Available on some models
Routing Protocols	RIP, OSPF, BGP, IS-IS
Management	SNMP, RMON, Web-based, CLI
Operating Temperature	0°C to 45°C
VLAN	4094
Dimensions (W x D x H)	442.0 mm x 220.0 mm x 43.6 mm