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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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S5720-52X-PWR-SI-AC

S5720-52X-PWR-SI-AC

Version Mapping

Table 4-564 lists the mapping between the S5720-52X-PWR-SI-AC chassis and software versions.

Table 4-564  Version mapping

Series

Model

Software Version
S5720-SI S5720-X-SI S5720-52X-PWR-SI-AC

V200R008C00 and later versions

Appearance and Structure

Figure 4-218  S5720-52X-PWR-SI-AC appearance
1 Forty-eight PoE+ 10/100/1000BASE-T ports 2 Four 10GE SFP+ ports
3 One ETH management port 4 One console port
NOTE:
It is used with a console cable. The console cable is not delivered with the switch and needs to be separately purchased if needed.
5 One USB port 6 Ground screw
NOTE:
It is used with a ground cable.
7 ESN label
NOTE:

You can draw it out to view the ESN and MAC address of the switch.

8 Power module slot 2
NOTE:
9 Power module slot 1
NOTE:
- -

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 4-565 describes the attributes of a 10/100/1000BASE-T Ethernet electrical port.
Table 4-565  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

100 m

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 4-566 describes the attributes of a 10GE SFP+ Ethernet optical port.
Table 4-566  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 4-567.
Table 4-567  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

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 BootLoad menu. File transfer through the ETH management port is faster than transfer through the console port. Table 4-568 describes the attributes of an ETH management port.
Table 4-568  Attributes of an ETH management port

Attribute

Description

Connector type

RJ45

Standards compliance

IEEE802.3

Working mode

10/100 Mbit/s auto-sensing

Maximum transmission distance

100 m

In V200R012C00 and later versions, you can log in to the switch that contains the ETH management port for the first time through the ETH port. For details, see "First Login to a Switch" in the Configuration Guide - Basic Configuration. If you have logged in to the device for the first time by pressing and holding the MODE button for 6 seconds or longer and save the configuration, the default configuration on the ETH port will be cleared. In this case, you cannot log in to the switch for the first time through the ETH port. You are advised to log in to the switch for the first time through the ETH port.
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 4-219  Indicators on the S5720-52X-PWR-SI-AC

NOTE:

The S5720-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 S5720-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 4-569  Description of indicators on the switch
No. Indicator Name Color Status Description
1 PWR1 Power module indicator - Off No power module is available in power module slot 1, or the switch has only one power module but the power module does not work normally.
Green Steady on A power module is installed in power module slot 1 and is working normally.
Yellow Steady on

The switch has two power modules installed. Any of the following situations occurs in power module slot 1:

  • A power module is available in this slot but its power switch is in the OFF position.

  • A power module is available in this slot but it is not connected to a power source.

  • The power module in this slot has failed.

2 PWR2 Power module indicator - Off No power module is available in power module slot 2, or the switch has only one power module but the power module does not work normally.
Green Steady on A power module is installed in power module slot 2 and is working normally.
Yellow Steady on

The switch has two power modules installed. Any of the following situations occurs in power module slot 2:

  • A power module is available in this slot but its power switch is in the OFF position.

  • A power module is available in this slot but it is not connected to a power source.

  • The power module in this slot has failed.

3 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.
Yellow Blinking

The system is in the sleep state.

NOTE:
The system can wake from the sleeping state if you press the MODE button.

Only non-PoE model supports sleep state.

Red Steady on The system does not work normally after registration, or a fan alarm or temperature alarm has been generated.
4 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.
5 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.
6 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.
7 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.
8 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.

9 - Service port indicator Meanings of service port indicators vary in different modes. For details, see Table 4-570.
10 - ETH port indicator - Off The ETH port is not connected.
Green Steady on The ETH port is connected.
Green Blinking The ETH port is sending or receiving data.
11 - 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 4-570  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.
Green 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 9 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 9 are blinking, the stack ID of the switch is 0.

Power Supply Configuration

The S5720-52X-PWR-SI-AC is a PoE switch. It has two power module slots, each of which can have a 500 W or 650 W power module installed. A power module can provide 369.6 W of PoE power for powered devices (PDs). A 500 W AC power module and a 650 W DC power module can be used together in the switch. Table 4-571 lists its power supply configurations.

Table 4-571  Power supply configurations
Power Module 1 Power Module 2 Available PoE Power Maximum Number of Ports (Fully Loaded)
500 W or 650 W - 369.6 W
  • 802.3af (15.4 W per port): 24
  • 802.3at (30 W per port): 12
500 W or 650 W 500 W or 650 W 739.2 W
  • 802.3af (15.4 W per port): 48
  • 802.3at (30 W per port): 24
NOTE:
When a switch has two power modules installed, the two power modules work in redundancy mode to provide power for the chassis and in load balancing mode to provide power for PDs.
Figure 4-220 shows the power supply mode of dual AC PoE power modules (PWR1 and PWR2). After AC power is transmitted to the PWR modules, the PWR modules provide 12 V and -53 V outputs. The outputs are combined on the motherboard, which then provides 12 V voltage for the switch and -53 V voltage for the PDs.
Figure 4-220  Power supply by dual AC PoE power modules

L: live wire

N: neutral wire

PGND: protection ground

GND: 12 V reference ground

RTN: -53 V reference ground

Figure 4-221 shows the power supply connections of dual DC PoE power modules. After DC power is transmitted to the PWR module, the PWR module provides 12 V and -53 V output voltages, and the motherboard provides 12 V voltage for the entire device and -53 V voltage for the PDs.
Figure 4-221  Power supply connections of dual DC PoE power modules

NEG: negative cable

RTN: positive cable

GND: 12 V reference ground

RTN: -53 V reference ground

Heat Dissipation

The S5720-52X-PWR-SI-AC has a built-in fan for forced air cooling. The airflow direction is left-to-right.

Technical Specifications

Table 4-572 lists technical specifications of the S5720-52X-PWR-SI-AC.

Table 4-572  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)

50.86 years

Mean time to repair (MTTR)

2 hours

Availability

> 0.99999

Service port surge protection

Common mode: ±6 kV

Power supply surge protection

  • Using 500 W AC power modules: ±6 kV in differential mode, ±6 kV in common mode
  • Using 650 W DC power modules: ±2 kV in differential mode, ±4 kV in common mode

Dimensions (H x W x D)

44.4 mm x 442.0 mm x 420.0 mm (1.75 in. x 17.4 in. x 16.5 in.)

Weight (with packaging)

9.6 kg (21.17 lb)

Stack ports

GE electrical ports and 10GE SFP+ optical ports on the front panel

RTC

Supported

RPS

Not supported

PoE

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

-38.4 V DC to -72 V DC

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

  • Not providing the PoE function: 93.1 W
  • 100% PoE loads: 943.2 W (system power consumption: 203.2 W, PoE: 740 W)
Typical power consumption (30% of traffic load)
  • Tested according to ATIS standard
  • EEE enabled
  • No PoE power consumption

51 W

Operating temperature

0°C to 45°C (32°F to 113°F) at an altitude of 0-1800 m (0-5906 ft.)

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.).

Short-term operating temperature

-5°C to +50°C (23°F to 122°F) at an altitude of 0-1800 m (0-5906 ft.)

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.).

The equipment can operate beyond the normal operating temperature range for a short-term period, but the following conditions must be met:
  • The equipment operates at a temperature of over 45°C (113°F) consecutively for at most 96 hours in one year.
  • The equipment operates at a temperature of over 45°C (113°F) for a total of no more than 360 hours in one year.
  • The equipment operates at a temperature of over 45°C (113°F) for no more in 15 times in one year.
The equipment may be damaged or experience unexpected exceptions if any of the preceding limits is exceeded.

The equipment cannot start when the temperature is lower than 0°C (32°F). The maximum distance of optical modules used in these conditions cannot exceed 10 km.

Storage temperature

-40°C to +70°C (-40°F to +158°F)

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

< 56.5 dB(A)

Relative humidity

5% to 95%, noncondensing

Operating altitude

0-5000 m (0-16404 ft.)

Certification

  • EMC certification
  • Safety certification
  • Manufacturing certification

Part number

02350DLX
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Updated: 2019-06-21

Document ID: EDOC1000013597

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