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S2700 Series Switches Hardware Description

This document provides an overall description of the S2700 hardware, helping you obtain detailed information about each chassis, cable, and optical module.
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
S2700-52P-PWR-EI

S2700-52P-PWR-EI

Version Mapping

Table 4-52 lists the mapping between the S2700-52P-PWR-EI chassis and software versions.

Table 4-52 Version mapping

Series

Model

Software Version
S2700-EI S2700-52P-PWR-EI

V100R006C03 to V100R006C05

Appearance and Structure

Figure 4-26 S2700-52P-PWR-EI appearance
1 Forty-eight PoE+ 10/100BASE-TX ports 2 Two 1000BASE-X ports
3 Two 100/1000BASE-X ports 4 One console port
5 Ground screw
NOTE:
It is used with Ground cable.
6 ESD jack
7 Fan slot
NOTE:

Applicable fan module:

CX7E1FANA fan module

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

Port Description

10/100BASE-TX port
A 10/100BASE-TX Ethernet electrical port sends and receives service data at 10/100 Mbit/s, and must use an Ethernet cable. Table 4-53 lists the attributes of a 10/100BASE-TX Ethernet electrical port.
Table 4-53 Attributes of a 10/100BASE-TX Ethernet electrical port

Attribute

Item

Connector type

RJ45

Standards compliance

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

Electrical port attributes

MDI/MDIX

NOTE:
  • A medium dependent interface (MDI) provides the physical and electrical connection to the cabling medium. Ethernet ports of most NICs are MDIs.
  • A medium dependent interface crossover (MDIX) enables connection between like devices. MDIX ports are usually used on hubs or LAN switches.

Working mode

10/100 Mbit/s auto-sensing

Maximum transmission distance

100 m

1000BASE-X port
A 1000BASE-X Ethernet optical port sends and receives service data at 1000 Mbit/s. Table 4-54 describes the attributes of a 1000BASE-X Ethernet optical port.
Table 4-54 Attributes of a 1000BASE-X Ethernet optical port

Attribute

Description

Connector type

LC/PC

Optical port attributes

Depend on the optical module used

Standards compliance

IEEE802.3z

Working mode

1000 Mbit/s

100/1000BASE-X port
A 100/1000BASE-X Ethernet optical port receives and sends service data at 100/1000 Mbit/s. Table 4-55 describes the attributes of a 100/1000BASE-X Ethernet optical port.
Table 4-55 Attributes of a 100/1000BASE-X Ethernet optical port

Attribute

Description

Connector type

LC/PC

Optical port attributes

Depend on the optical module used

Standards compliance

IEEE802.3z

Working mode

100/1000 Mbit/s auto-sensing

Console port
The console port of a switch can connect to an operation terminal for onsite configuration. The port must use Console Cable. To configure a switch after the first power-on, log in to the switch through the console port. Table 4-56 lists attributes of a console port.
Table 4-56 Attributes of a console port

Attribute

Item

Connector type

RJ45

Standards compliance

RS-232

Working mode

Full-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

Indicator Description

Figure 4-27 Indicators on the S2700-52P-PWR-EI

Table 4-57 Description of indicators on the switch

No.

Indicator/Button

Color

Description

1

PWR1: power supply 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.

Red

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.

  • Both the system power supply and PoE power supply in this slot have failed.

Yellow

Steady on: The switch has only one power module and power module slot 1 cannot provide PoE power supply normally. Alternatively, the switch has double power modules, and power module slot 1 cannot provide system power supply or PoE power supply normally.

2

PWR2: power supply 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.

Red

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.

  • Both the system power supply and PoE power supply in this slot have failed.

Yellow

Steady on: The switch has only one power module and power module slot 2 cannot provide PoE power supply normally. Alternatively, the switch has double power modules, and power module slot 2 cannot provide system power supply or PoE power supply normally.

3

SYS: system status indicator

-

Off: The system is not running.

Green

  • Steady on: The system is not running normally or is starting.

  • Slow blinking: The system is running normally.

Yellow

Steady on: The system is performing self-check during startup.

Red

Steady on: The system does not work normally after registration, or a fan alarm or temperature alarm has been generated.

4

Mode indicator

-

Off: Service port indicators work in status mode (default mode) and show the link connection states and link activity on ports.

Green

Steady on: The service port indicators show the port speeds. After 45 seconds, the service port indicators automatically restore to the default mode and the mode indicator turns off.

Red

Steady on: The service port indicators show the stack ID of the switch. After 45 seconds, the service port indicators automatically restore to the default mode and the mode indicator turns off.

Yellow

Steady on: The service port indicators show the PoE status. After 45 seconds, the service port indicators automatically restore to the default mode and the mode indicator turns off.

5

Mode switch button

-

  • When you press this button once, the mode indicator turns green and the service port indicators show the speed of each service port.
  • When you press the button a second time, the mode indicator turns red and the service port indicators show stack information.
  • When you press the button a third time, the mode indicator turns yellow and the service port indicators show PoE information.
  • When you press the button a fourth time, the mode indicator turns off and the service port indicators restore to the status mode (default mode).

If you do not press this button within 45 seconds, the mode indicator turns off.

6

Service port indicator

Meanings of service port indicators vary in different modes. For details, see Table 4-58.

Table 4-58 Description of service port indicators in different modes

Mode

Color

Description

Status

Green

  • Off: The port is not connected or has been shut down.
  • Steady on: A link has been established on the port.

  • Blinking: The port is sending or receiving data.

Speed

Green

  • Off: The port is not connected or has been shut down.
  • Steady on: The port is operating at 10/100 Mbit/s.

  • Blinking: The port is operating at 1000 Mbit/s.

PoE

Green

  • Off: The port is not providing power to a powered device (PD).
  • Steady on: The port is providing power to a PD.

  • Blinking: The power of the PD connected to the port exceeds the power capacity of the port or the power threshold configured on the port. Alternatively, the PD does not comply with IEEE standards.

Stack

Green

  • Off: Port indicators do not show the stack member ID of the switch.
  • Steady on:

    The switch is not the master switch in a stack.
    • If the indicator of a service port is steady on, the number of the service 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.

  • Blinking:

    The switch is the master switch in a stack.
    • If the indicator of a service port is blinking, the number of the service 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 S2700-52P-PWR-EI has two power module slots, each of which can have a 500 W or 250 W power module installed. A power module can provide 369.6 W or 123.2 W of PoE power for powered devices (PDs). Table 4-59 lists its power supply configurations.
Table 4-59 Power supply configurations
Power Module 1 Power Module 2 Available PoE Power Maximum Number of Ports (Fully Loaded)
250 W 123.2 W
  • 802.3af (15.4 W per port): 8
  • 802.3at (30 W per port): 4
500 W 369.6 W
  • 802.3af (15.4 W per port): 24
  • 802.3at (30 W per port): 12
250 W 250 W 246.4 W
  • 802.3af (15.4 W per port): 16
  • 802.3at (30 W per port): 8
500 W 500 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 4-28 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 4-28 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

Heat Dissipation

The S2700-52P-PWR-EI uses pluggable fan modules for forced air cooling. Air flows in from the left and right sides, and exhausts from the rear panel.

Technical Specifications

Table 4-60 lists technical specifications of the S2700-52P-PWR-EI.

Table 4-60 Technical specifications

Item

Description

Memory (RAM)

128 MB

Flash

16 MB

Mean time between failures (MTBF)

35.4 years

Mean time to repair (MTTR)

2 hours

Availability

> 0.99999

Service port surge protection

Common mode: ±1 kV

Power supply surge protection

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

Dimensions (H x W x D)

43.6 mm x 442.0 mm x 420.0 mm (1.72 in. x 17.4 in. x 16.5 in.)

Weight

≤ 8 kg (17.64 lb)

Stack ports

Two 1000BASE-X ports

RPS

Not supported

PoE

Supported

Rated voltage range

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

Maximum voltage range

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

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

880 W (system power consumption: 140 W, PoE: 740 W)

Operating temperature

0°C to 50°C (32°F to 122°F)

Storage temperature

-40°C to +70°C (-40°F to +158°F)

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

< 51 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

02354131
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Updated: 2019-08-19

Document ID: EDOC1000027458

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