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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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S5700-28X-LI-24S-DC

S5700-28X-LI-24S-DC

Version Mapping

Table 4-92 lists the mapping between the S5700-28X-LI-24S-DC chassis and software versions.

Table 4-92  Version mapping

Series

Model

Software Version
S5700-LI S5700-28X-LI-24S-DC

V200R003C00 to V200R012C00 versions

NOTE:
This model does not match V200R003C02, V200R003C10, V200R005C00SPC500, V200R005C01, V200R005C02, V200R005C03, or V200R007C10.

Appearance and Structure

Figure 4-36  S5700-28X-LI-24S-DC appearance
1 Twenty 100/1000BASE-X ports 2 Four combo ports (10/100/1000BASE-T + 100/1000BASE-X)
3 Four 10GE SFP+ ports 4 One mini USB port
5 One console port 6 One USB port
7 Ground screw
NOTE:
It is used with a ground cable.
8 DC power terminal
NOTE:

It is used together with a DC Power Cable.

9 RPS socket
NOTE:

It is used with an RPS cable, which is not hot swappable.

- -

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 4-93 describes the attributes of a 100/1000BASE-X port.
Table 4-93  Attributes of a 100/1000BASE-X port

Attribute

Description

Connector type

LC/PC

Optical interface attributes

Depend on the optical module used

Standards compliance

IEEE802.3z

Working mode

100/1000 Mbit/s auto-sensing

Combo port
A combo port refers to a pair of ports consisting of an optical Ethernet port and an electrical Ethernet port on the panel. Each combo port matches only one internal forwarding port. A combo port can be configured as an electrical port or an optical port, but only one port can be active at a time. When one port is active, the other port is shut down.
NOTE:

By default, a combo port works in auto mode, in which the port type is determined as follows:

  • If the optical port has no optical module installed and the electrical port has no Ethernet cable connected, the port type depends on which port is connected first. If the electrical port is connected by an Ethernet cable first, the electrical port is used for data switching. If the optical port has an optical module installed first, the optical port is used for data switching.
  • If the electrical port has an Ethernet cable connected and is in Up state, the electrical port is still used for data switching when the optical port has an optical module installed.
  • If the optical port, no matter in Up or Down state, has an optical module installed, the optical port is still used for data switching when the electrical port has an Ethernet cable connected.
  • If the optical port has an optical module installed and the electrical port has an Ethernet cable connected, the optical port is used for data switching after the switch restarts.
You can configure a combo port as an electrical or optical port using the combo-port command.
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 4-94 describes the attributes of a 10GE SFP+ Ethernet optical port.
Table 4-94  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 4-95.
Table 4-95  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

Mini USB port

The mini USB port is connected to a console for on-site configuration. When both the Mini USB and console port have a cable connected, only the Mini USB port works.

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 flash drive used on a switch must comply with USB 1.1.
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

The S5700-28X-LI-24S-DC has the same types of indicators as the S5700-28X-LI-24S-AC. For details, see Indicator Description.

Power Supply Configuration

The S5700-28X-LI-24S-DC has a built-in power module and does not support pluggable power modules. It can connect to an RPS1800 power supply for power redundancy.

Figure 4-37 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.
Figure 4-37  Power supply by a single DC power module

NEG: negative cable

RTN: positive cable

GND: 12 V reference ground

Heat Dissipation

The S5700-28X-LI-24S-DC has two built-in fans for forced air cooling. The airflow direction is left-to-right.

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

Technical Specifications

Table 4-96 lists technical specifications of the S5700-28X-LI-24S-DC.

Table 4-96  Technical specifications

Item

Description

Memory (RAM)

256 MB

Flash

200 MB

Mean time between failures (MTBF)

89.91 years

Mean time to repair (MTTR)

2 hours

Availability

> 0.99999

Service port surge protection

Common mode: ±6 kV

Power supply surge protection

±1 kV in differential mode, ±2 kV in common mode

Dimensions (H x W x D)

43.6 mm x 442.0 mm x 220.0 mm (1.72 in. x 17.4 in. x 8.7 in.)

Weight (with packaging)

3.5 kg (7.72 lb)

Stack ports

Four uplink 10GE SFP+ ports

RTC

Supported

RPS

Supported

PoE

Not supported

Rated voltage range

-48 V DC to -60 V DC

Maximum voltage range

-36 V DC to -72 V DC

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

57 W

Typical power consumption (30% of traffic load)
  • Tested according to ATIS standard
  • EEE enabled
  • No PoE power consumption

46.9 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.).

Storage temperature

-40°C to +70°C (-40°F to +158°F)

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

< 49.6 dB(A)

Relative humidity

5% to 95%, noncondensing

Operating altitude

0-2000 m (0-6562 ft.)

Certification

  • EMC certification
  • Safety certification
  • Manufacturing certification

Part number

02355303
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Updated: 2019-06-21

Document ID: EDOC1000013597

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