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S5700 Series Switches Hardware Description

This document provides an overall description of the S5700 hardware, helping you obtain detailed information about each chassis, card, power module, fan module, cable, and optical module.
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Version Mapping

Table 4-992 lists the mapping between the S5700-28C-HI-24S and software versions.

Table 4-992 Version mapping



Software Version
S5700-HI S5700-28C-HI-24S

V100R006C01 to V200R005C02

This model does not match V200R003C02 or V200R003C10.

Appearance and Structure

Figure 4-395 S5700-28C-HI-24S appearance
1 Power module slot 1
Applicable power modules:
2 Power module slot 2
Applicable power modules:
3 ESD jack

Before installing or maintaining a switch, wear an ESD wrist strap and insert the other end of the ESD wrist strap into this ESD jack.

4 One console port
5 One ETH management port 6 Front card slot
7 One USB port 8 Twenty-four 100/1000BASE-X ports
9 Ground screw
It is used with a ground cable. The switch has two ground screws, any of which can be used to install a ground cable.
10 Monitoring port
The monitoring port monitors the cabinet door, power module, battery power, and power supply of the air conditioner.

Port Description

100/1000BASE-X port
A 100/1000BASE-X port can send and receive data at 100 Mbit/s or 1000 Mbit/s. Table 4-993 describes the attributes of a 100/1000BASE-X port.
Table 4-993 Attributes of a 100/1000BASE-X port



Connector type


Optical interface attributes

Depend on the optical module used

Standards compliance


Working mode

100/1000 Mbit/s auto-sensing

Console port
The console port is connected to a console for on-site configuration. The port must use a console cable. The console port is used when a switch is powered on for the first time. For details about the attributes of a console port, see Table 4-994.
Table 4-994 Attributes of a console port



Connector type


Standards compliance


Working mode

Duplex Universal Asynchronous Receiver/Transmitter (UART)

Baud rate

9600 bit/s, 19200 bit/s, 38400 bit/s, 57600 bit/s, or 115200 bit/s

Default value: 9600 bit/s

ETH management port
You can connect a switch to a configuration terminal or network management workstation through the ETH management port to configure the switch locally or remotely. The port must use an Ethernet cable. You can choose to download the software package through the ETH management port in the BootROM menu. File transfer through the ETH management port is faster than transfer through the console port. For details on how to use the ETH management port, see the Configuration Guide - Basic Configurations. Table 4-995 describes the attributes of an ETH management port.
Table 4-995 Attributes of an ETH management port



Connector type


Standards compliance


Working mode

10/100 Mbit/s auto-sensing

Maximum transmission distance

100 m

USB port
The USB port can have a USB flash drive connected to upgrade the switch, or transfer configuration files or other files. The USB port can only connect to a USB flash drive that complies with USB 2.0.
USB flash drives from different vendors differ in model compatibility and drivers. If a USB flash drive cannot be used, try to replace it with another one from a mainstream vendor. Switches support a maximum of 128 GB USB flash drives.

Indicator Description

The S5700-28C-HI-24S has similar indicators (except service port indicators) to those on the S5700-28C-HI. For details, see Indicator Description.

Power Supply Configuration

The S5700-28C-HI-24S uses pluggable power modules. It can be configured with a single power module or double power modules for 1+1 power redundancy. Pluggable AC and DC power modules can be used together in the same switch.

Figure 4-396 shows the power supply connections of dual DC power modules. After DC power is transmitted to the PWR module, the PWR module provides 12 V output voltage, and the motherboard provides power for the entire device.
Figure 4-396 Power supply connections of dual DC power modules

NEG: negative cable

RTN: positive cable

GND: 12 V reference ground

Figure 4-397 shows the power supply connections of dual non-PoE AC power modules. After AC power is transmitted to the PWR module, the PWR module provides 12 V output voltage, and the motherboard provides power for the entire device.
Figure 4-397 Power supply connections of dual non-PoE AC power modules

L: Live wire

N: Neutral wire

PGND: Protection ground cable

GND: 12 V reference ground

Heat Dissipation

The S5700-28C-HI-24S has three built-in fans for forced air cooling. The airflow direction is left-to-right.

This figure only shows the airflow direction and does not depict the actual device.

Technical Specifications

Table 4-996 lists technical specifications of the S5700-28C-HI-24S.

Table 4-996 Technical specifications



Memory (RAM)

512 MB


64 MB

Mean time between failures (MTBF)

25.5 years when a 4-port 10GE interface card is configured, 34.8 years when a 2-port 10GE interface card is configured, 36.1 years when a 4-port GE interface card is configured

Mean time to repair (MTTR)

2 hours


> 0.99999

Service port surge protection


Power supply surge protection

  • Using AC power modules: ±6 kV in differential mode, ±6 kV in common mode
  • Using DC power modules: ±1 kV in differential mode, ±2 kV in common mode

Dimensions (H x W x D)

44.4 mm x 442.0 mm x 220.0 mm (1.75 in. x 17.4 in. x 8.7 in.)


  • Empty: ≤ 5 kg (11.02 lb)
  • Fully configured: ≤ 6.5 kg (14.33 lb)

Stack ports

  • Versions earlier than V200R003C00 do not support stack ports.
  • Since V200R003C00, 10GE ports on the front card can be used as stack ports.


Not supported


Not supported

Rated voltage range

100 V AC to 240 V AC, 50/60 Hz

-48 V DC to -60 V DC

Maximum voltage range

90 V AC to 264 V AC, 47 Hz to 63 Hz

-36 V DC to -72 V DC

Maximum power consumption (100% throughput, full speed of fans)

80.7 W

Operating temperature

-5°C to +55°C (23°F to 131°F)

The operating temperature of the switch is -5°C to +50°C (23°F to 122°F) when it uses SFP+ optical modules with 40 km or longer transmission distances.

Storage temperature

-40°C to +70°C (-40°F to +158°F)

Noise under normal temperature (27°C, sound power)

< 60 dB(A)

Relative humidity

5% to 95%, noncondensing

Operating altitude

  • AC power modules configured: 0-5000 m (0-16404 ft.)
  • DC power modules configured: 0-2000 m (0-6562 ft.)


  • EMC certification
  • Safety certification
  • Manufacturing certification

Part number

Updated: 2019-08-19

Document ID: EDOC1000013597

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Downloads: 14404

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