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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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S5720I-12X-PWH-SI-DC

S5720I-12X-PWH-SI-DC

Version Mapping

Table 4-651 lists the mapping between the S5720I-12X-PWH-SI-DC chassis and software versions.

Table 4-651 Version mapping

Series

Switch Model

Software Version
S5720I-SI S5720I-12X-PWH-SI-DC

V200R012C00 and later versions

Appearance and Structure

Figure 4-255 S5720I-12X-PWH-SI-DC appearance
1

DC input power socket

NOTE:

It must be used with the Phoenix connector, which is included in the installation accessory package.

2

Monitoring port

NOTE:

It must be used with the Phoenix connector, which is included in the installation accessory package.

The monitoring port detects the status of external devices, for example, monitoring the opening and closing of the cabinet door.

For details about how to use a monitoring port, see "Monitoring Interface Configuration" in the CLI-based Configuration Guide - Device Management Configuration Guide.

3 One console port 4 One PNP button
NOTICE:

To restore the factory settings and reset the switch, hold down the button for at least 6 seconds.

To reset the switch, press the button.

Resetting the switch will cause service interruption. Exercise caution when you press the PNP button.

5 One USB port 6 Eight PoE++ 10/100/1000BASE-T ports
7 Four 10GE SFP+ ports 8 Ground screw
NOTE:
It is used with a ground cable.

Port Description

10/100/1000BASE-T port
A 10/100/1000BASE-T Ethernet electrical port sends and receives service data at 10/100/1000 Mbit/s, and must use an Ethernet cable. Table 4-652 describes the attributes of a 10/100/1000BASE-T Ethernet electrical port.
Table 4-652 Attributes of a 10/100/1000BASE-T Ethernet electrical port

Attribute

Description

Connector type

RJ45

Standards compliance

IEEE802.3, IEEE802.3u, IEEE802.3ab

Working mode

10/100/1000 Mbit/s auto-sensing

Maximum transmission distance

It supports long-distance interconnection with Huawei cameras. For example, it supports the distance of 200 m at 100 Mbit/s and supports the distance of 250 m at 10 Mbit/s.
  • The supported camera models are M2220-I, M2221-FL, M2221-VL, M2260-I, and M2220-I(8-32mm).
  • If the transmission distance exceeds 100 m, Category 5E or higher Ethernet cables are required.
10GE SFP+ port
A 10GE SFP+ Ethernet optical port supports auto-sensing to 1000 Mbit/s. It sends and receives service data at 1000 Mbit/s or 10 Gbit/s. Table 4-653 describes the attributes of a 10GE SFP+ Ethernet optical port.
Table 4-653 Attributes of a 10GE SFP+ port

Attribute

Description

Connector type

LC/PC

Optical port attributes

Depend on the optical module used

Standards compliance

IEEE802.3ae

Working mode

GE/10GE 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 4-654.
Table 4-654 Attributes of a console port

Attribute

Description

Connector type

RJ45

Standards compliance

RS-232

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

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.
NOTE:
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

NOTE:
Hold down the mode switch button for 6s and release it to start the web initial login mode. Either of the following situations will occur:
  • If the switch has no configuration file, the system attempts to enter the web initial login mode. In this mode, the status of mode indicators is as follows:
    • If the system enters the web initial login mode successfully, all mode indicators turn green and stay on for a maximum of 10 minutes.
    • If the system fails to enter the initial login mode, all mode indicators fast blink for 10 seconds and then restore to the default status.
  • If the switch has a configuration file, the system cannot enter the web initial login mode. In this case, all mode indicators fast blink for 10s, and then return to the default states.
Figure 4-256 Indicators on the S5720I-12X-PWH-SI-DC

NOTE:

The S5720I-SI series switches provide a command for setting fault indicators, which help field maintenance personnel find a faulty switch quickly.

The SYS indicator and mode indicators (STAT, SPED, STCK, and PoE) are used as fault indicators. When an S5720I-SI switch is faulty, you can run the command to turn on the fault indicators. Then the SYS indicator and mode indicators fast blink red to help field maintenance personnel quickly find the faulty switch.

Table 4-655 Description of indicators on the switch
No. Indicator Name Color Status Description
1 PWR Power module indicator - Off The switch is powered off.
Green Steady on The system power supply is normal.
2 SYS System status indicator - Off The system is not running.
Green Fast blinking The system is starting.
Green Slow blinking The system is running normally.
Red Steady on The system does not work normally after registration, or a fan alarm or temperature alarm has been generated.
3 STAT Status indicator - Off The status mode is not selected.
Green Steady on The status mode (default mode) is selected. If the status mode is selected, the service port indicator shows the port link or activity state.
4 SPED Speed indicator - Off The speed mode is not selected.
Green Steady on The service port indicators show the port speeds. After 45 seconds, the service port indicators automatically restore to the status mode.
5 STCK Stack indicator - Off
  • If you are not changing the indicator mode (default): The switch is in stack standby or slave state or the stacking function is not enabled on the switch.
  • If you are changing the indicator mode: The stack mode is not selected.
Green Steady on The switch is a standby or slave switch in a stack, and the service port indicators show the stack ID of the switch.
Green Blinking
  • If you are not changing the indicator mode (default): The switch is a stack master switch or a standalone switch with the stacking function enabled.
  • If you are changing the indicator mode: The switch is the master switch in a stack or a standalone switch, and the service port indicators show the stack ID of the master switch.
After 45 seconds, the service port indicators automatically restore to the status mode.
6 PoE PoE indicator - Off The PoE mode is not selected.
Green Steady on The service port indicators show the PoE status. After 45 seconds, the service port indicators automatically restore to the status mode.
7 MODE Mode switch button - -
  • When you press this button once, the service port indicators change to the speed mode and show the speed of each service port
  • When you press this button a second time, the service port indicators change to the stack mode and show the stack ID of the local switch.
  • When you press this button a third time, the service port indicators change to the PoE mode and show the PoE status of each service port.
  • When you press this button a fourth time, the service port indicators restore to the default mode, and the STAT indicator turns green.

If you do not press the MODE button within 45 seconds, the service port indicators restore to the default mode. In this case, the STAT indicator is steady green, the SPED and PoE indicators are off, and the STCK indicator is off or blinking green.

8 - Service port indicator

Meanings of service port indicators vary in different modes. For details, see Table 4-656.

9 - USB-based deployment indicator - Off
  • No USB flash drive is connected to the switch.
  • The USB port is damaged.
  • The indicator is damaged.
  • The USB flash drive does not have any configuration file and cannot be used for deployment.
  • The switch has been upgraded using the USB flash drive and is restarting.
Green Steady on A USB-based deployment has been completed.
Green Blinking The system is reading data from the USB flash drive.
Yellow Steady on The switch has copied all the required files and completed the file check. The USB flash drive can be removed from the switch.
Red Blinking An error has occurred when the system is executing the configuration file or reading data from the USB flash drive.
Table 4-656 Description of service port indicators in different modes (one indicator for each port)
Display Mode Color Status Description
Status - Off The port is not connected or has been shut down.
Green Steady on A link has been established on the port.
Blinking The port is sending or receiving data.
Speed - Off The port is not connected or has been shut down.
Green Steady on

10M/100M/1000M port: The port is operating at 10/100 Mbit/s.

1000M/10GE port: The port is operating at 1000 Mbit/s.

Green Blinking

10M/100M/1000M port: The port is operating at 1000 Mbit/s.

1000M/10GE port: The port is operating at 10 Gbit/s.

PoE - Off The port is not providing power to a powered device (PD).
Green Steady on The port is providing power to a PD.
Yellow Steady on The PoE function is disabled on the port.
Yellow Blinking The port stops providing PoE power because of an exception (for example, an incompatible PD is connected to the port).
Green and yellow Blinking green and yellow alternately The port fails to supply power to a PD due to one of the following reasons:
  • The power required by the connected PD exceeds the maximum power or the configured power threshold of the port.
  • The total power consumption of PDs has reached the maximum power of the switch.
  • The manual power management mode is used and the port is not enabled to provide power to the PD.
Stack - Off Port indicators do not show the stack ID of the switch.
Green Steady on
The switch is not the master switch in a stack.
  • If the indicator of a port is steady on, the number of this port is the stack ID of the switch.

  • If the indicators of ports 1 to 8 are steady on, the stack ID of the switch is 0.

Green Blinking
The switch is the master switch in a stack.
  • If the indicator of a port is blinking, the number of this port is the stack ID of the switch.

  • If the indicators of ports 1 to 8 are blinking, the stack ID of the switch is 0.

Power Supply Configuration

The S5720I-12X-PWH-SI-DC has a built-in power module and does not support pluggable power modules. It can directly connect to the external power module with 50 V DC to 56 V DC power or the PAC-260WA-E or PAC240S56-CN power module. Table 4-657 lists its power supply configurations.

Table 4-657 Power supply configurations
Power Supply Configuration Available PoE Power Maximum Number of Ports (Fully Loaded)
External power module with 50 V to 56 V DC power supply 220 W by default; 240 W at most
  • 802.3af (15.4 W per port): 8
  • 802.3at (30 W per port): 8
  • 802.3bt (60 W per port): 4
260 W power module (PAC-260WA-E) 220 W by default; 240 W at most
  • 802.3af (15.4 W per port): 8
  • 802.3at (30 W per port): 8
  • 802.3bt (60 W per port): 4
240 W power module (PAC240S56-CN) 220 W
  • 802.3af (15.4 W per port): 8
  • 802.3at (30 W per port): 7
  • 802.3bt (60 W per port): 3
NOTE:
The PoE power supply of S5720I-12X-PWH-SI-DC is in direct mode. The input voltage must meet the PoE standard. If the input voltage does not meet the PoE standard, the voltage on the PD side may be too low.

If the external DC power supply is in grounding design, the non-isolated AP and camera cannot be used. In this case, isolate the AP and camera.

If a non-Huawei external DC power supply is used, ensure that it meets the following requirement:

Maximum power consumption of the device (20 W) + Number of PoE ports in use x PoE consumption of each port

Figure 4-257 shows the power supply mode of a single DC power module. The built-in DC power module (PWR) receives DC power from an external power source and provides a 12 V output to the chassis and -56 V output to the PoE power supply.
Figure 4-257 Power supply connections of a single DC power module

NEG: negative cable

RTN: positive cable

GND: 12 V reference ground

RTN1: -56 V reference ground

Heat Dissipation

The S5720I-12X-PWH-SI-DC has no fans and uses natural heat dissipation.

Technical Specifications

Table 4-658 lists technical specifications of the S5720I-12X-PWH-SI-DC.

Table 4-658 Technical specifications

Item

Description

Memory (RAM)

512 MB

Flash

512 MB in total. To view the available flash memory size, run the display version command.

Mean time between failures (MTBF)

64.23 years

Mean time to repair (MTTR)

2

Availability

> 0.99999

Service port surge protection

±1.5 kV in differential mode, ±6 kV in common mode

Power supply surge protection

±2 kV in differential mode, ±4 kV in common mode

Dimensions (H x W x D)

43.6 mm x 250.0 mm x 180.0 mm (1.72 in. x 9.84 in. x 7.09 in.)

Weight (with packaging)

2.5 kg (5.51 lb)

Stack ports

Eight 10/100/1000BASE-T ports and four 10G SFP+ ports

RTC

Not supported

RPS

Not supported

PoE

Supported

Rated voltage range

50 V DC to 56 V DC

Maximum voltage range

46 V DC to 57 V DC

Maximum power consumption (100% throughput)

Using PAC-260WA-E power module:
  • Without PoE: 28.8 W
  • 100% PoE loads: 288.4 W (system power consumption: 48.4 W, PoE: 240 W)
Using PAC240S56-CN power module:
  • Without PoE: 26.5 W
  • 100% PoE loads: 270.1 W (system power consumption: 50.1 W, PoE: 220 W)
Typical power consumption (30% of traffic load)
  • Tested according to ATIS standard
  • EEE enabled
  • No PoE power consumption
Using PAC-260WA-E power module:

27.6 W

Using PAC240S56-CN power module:

25 W

Operating temperature

  • -40°C to +65°C (-40°F to +149°F) (installed in the sealing cabinet)
  • -40°C to +70°C (-40°F to +158°F) (installed in the ventilation cabinet, with the wind speed of at least 40 LFM)
  • -40°C to +75°C (-40°F to +167°F) (installed in the ventilation cabinet shipped with fans with a fan speed of at least 200 LFM)
NOTE:

When the altitude is 1800-5000 m (5906-16404 ft.), the highest operating temperature reduces by 1°C (1.8°F) every time the altitude increases by 220 m (722 ft.).

Storage temperature

-40°C to +85°C (-40°F to +185°F)

Protection rating

IP30

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

Noise-free (no fans)

Relative humidity

5% to 95%, noncondensing

Operating altitude

0-5000 m

Certification

  • EMC certification
  • Safety certification
  • Manufacturing certification
Part number 98010795
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Updated: 2019-08-19

Document ID: EDOC1000013597

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