H3C S5120-9P-SI, S5120-20P-SI, S5120-52P-SI, S5120-28P-SI, S5120-9P-HPWR-SI Installation Manual

Hangzhou H3C Technologies Co., Ltd.
http://www.h3c.com

Document version: 6W105-20110308

H3C S5120-SI Switch Series

Installation Manual

Copyright © 2009-2011, Hangzhou H3C Technologies Co., Ltd. and its licensors

All rights reserved

No part of this manual may be reproduced or transmitted in any form or by any means without prior
written consent of Hangzhou H3C Technologies Co., Ltd.

Trademarks

H3C,
SecPro, SecPoint, SecEngine, SecPath, Comware, Secware, Storware, NQA, VVG, V
XGbus, N-Bus, TiGem, InnoVision and HUASAN are trademarks of Hangzhou H3C Technologies Co.,
Ltd.

All other trademarks that may be mentioned in this manual are the property of their respective owners

Notice

The information in this document is subject to change without notice. Every effort has been made in the
preparation of this document to ensure accuracy of the contents, but all statements, information, and
recommendations in this document do not constitute the warranty of any kind, express or implied.

Environmental protection

This product has been designed to comply with the environmental protection requirements. The storage,
use, and disposal of this product must meet the applicable national laws and regulations.

, Aolynk, , H3Care,

, TOP G, , IRF, NetPilot, Neocean, NeoVTL,

2

G, VnG, PSPT,

Preface

H3C S5120-SI Switch Series Installation Manual describes the appearance, installation, power-on,
maintenance, and troubleshooting of the H3C S5120-SI series Ethernet switches.

This preface includes:

•

Audience

Conventions

•

About the H3C S5120-SI documentation set

•

Obtaining documentation

•

Technical support

•

Documentation feedback

•

Audience

This documentation is intended for:

• Network planners

• Field technical support and servicing engineers

• Network administrators working with the S5120-SI series

Conventions

This section describes the conventions used in this documentation set.

GUI conventions

Convention Description

Boldface

> Multi-level menus are separated by angle brackets. For example, File > Create > Folder.

Symbols

Convention Description

WARNING

CAUTION

IMPORTANT

NOTE

Window names, button names, field names, and menu items are in Boldface. For
example, the New User window appears; click OK.

An alert that calls attention to important information that if not understood or followed can
result in personal injury.

An alert that calls attention to important information that if not understood or followed can
result in data loss, data corruption, or damage to hardware or software.

An alert that calls attention to essential information.

An alert that contains additional or supplementary information.

About the H3C S5120-SI documentation set

The H3C S5120-SI documentation set includes:

Category Documents Purposes

Marketing brochures Describe product specifications and benefits.

Product
description and
specifications

Hardware
installation

Software
configuration

Operations
and
maintenance

RPS Ordering Information for H3C
Low-End Ethernet Switches

H3C Low End Series Ethernet
Switches Pluggable Modules
Manual

Quick Start Guide Provides a quick guide to hardware installation.

Installation Manual

Pluggable SFP[SFP+][XFP]
Transceiver Modules Installation
Guide

Configuration guides

Command references Provide a quick reference to all available commands.

H3C Series Ethernet Switches
Login Password Recovery Manual

Release notes

Provides the RPS and switch compatibility matrix and
RPS cable specifications.

Describes the models, appearances, and
specifications of the pluggable modules available for
the products.

Provides a complete guide to hardware installation
and hardware specifications.

Provides regulatory information and the safety
instructions that must be followed during installation.

Guides you through installing SFP/SFP+/XFP
transceiver modules.

Describe software features and configuration
procedures.

Describes how to find or recover a lost password.

Provide information about the product release,
including the version history, hardware and software
compatibility matrix, version upgrade information,
technical support information, and software
upgrading.

Obtaining documentation

You can access the most up-to-date H3C product documentation on the World Wide Web at

http://www.h3c.com.

Click the links on the top navigation bar to obtain different categories of product documentation:

[Technical Support & Documents > Technical Documents] – Provides hardware installation, software

upgrading, and software feature configuration and maintenance documentation.

[Products & Solutions] – Provides information about products and technologies, as well as solutions.

[Technical Support & Documents > Software Download] – Provides the documentation released with the

software version.

Technical support

[e-mail]

http://www.h3c.com

Documentation feedback

You can e-mail your comments about product documentation to [e-mail].

We appreciate your comments.

Contents

Product overview·························································································································································· 1

Introduction ········································································································································································1
S5120-9P-SI·······································································································································································3

Front panel ································································································································································3
Rear panel·································································································································································3
Power supply system ················································································································································3
Cooling system ·························································································································································3

S5120-20P-SI·····································································································································································4

Front panel ································································································································································4
Rear panel·································································································································································4
Power supply system ················································································································································4
Cooling system ·························································································································································4

S5120-28P-SI·····································································································································································5

Front panel ································································································································································5
Rear panel·································································································································································5
Power supply system ················································································································································5
Cooling system ·························································································································································5

S5120-52P-SI·····································································································································································6

Front panel ································································································································································6
Rear panel·································································································································································6
Power supply system ················································································································································6
Cooling system ·························································································································································6

S5120-9P-HPWR-SI···························································································································································7

Front panel ································································································································································7
Rear panel·································································································································································7
Power supply system ················································································································································7
Cooling system ·························································································································································7

S5120-28P-PWR-SI ···························································································································································8

Front panel ································································································································································8
Rear panel·································································································································································8
Power supply system ················································································································································8
Cooling system ·························································································································································8

S5120-28P-HPWR-SI ························································································································································9

Front panel ································································································································································9
Rear panel·································································································································································9
Power supply system ················································································································································9
Cooling system ······················································································································································ 10

Ports ················································································································································································· 10

Console port··························································································································································· 10
10/100/1000Base-T Ethernet port ···················································································································· 10
1000Base-X SFP interface ···································································································································· 11

LEDs ················································································································································································· 12

Power LED ······························································································································································ 12
RPS status LED························································································································································ 12
Port mode LED························································································································································ 12
10/100/1000Base-T auto-sensing Ethernet port status LED ············································································ 13
1000Base-X SFP interface status LED ·················································································································· 14

i

Preparing for installation ···········································································································································15

Safety precautions·························································································································································· 15
Examining the installation site ······································································································································ 15

Temperature/humidity ·········································································································································· 15
Cleanness······························································································································································· 16
Electromagnetic susceptibility······························································································································· 16
Laser safety····························································································································································· 16

Installation tools······························································································································································ 17

Installing the switch····················································································································································18

Installation flow ······························································································································································18
Installing the switch into a 19-inch rack by using mounting brackets ······································································ 19

Introduction to mounting brackets························································································································ 19
Attaching the mounting brackets to a switch······································································································ 20

Mounting the switch to a rack······························································································································ 22
Mounting the switch on a workbench·························································································································· 24
Mounting the switch to a wall······································································································································· 25

Introduction to expansion screws ························································································································ 25

Installation procedure············································································································································ 25
Mounting the switch through magnet mounting·········································································································· 27

Introduction to magnetic mounting accessories ································································································· 27

Installation procedure············································································································································ 27
Connecting the grounding cable·································································································································· 29

When a grounding strip is available ·················································································································· 29

Where a grounding conductor can be buried··································································································· 30

In other installation sites········································································································································ 31
Connecting the power cord ·········································································································································· 32

Connecting an AC power cord ··························································································································· 32

Connecting an RPS DC power cord···················································································································· 33
Verifying the installation················································································································································ 34

Initial power-on···························································································································································35

Setting up the configuration environment ···················································································································· 35
Connecting the console cable ······································································································································ 35

Console cable························································································································································ 35

Connection procedure ·········································································································································· 36
Setting terminal parameters ·········································································································································· 36
Booting the switch·························································································································································· 39

Checking before power-on··································································································································· 39

Powering on the switch········································································································································· 39

Changing the boot mode ····································································································································· 41

Loading software························································································································································44

Introduction ····································································································································································· 44
Approaches for loading boot files and configuration files ························································································ 44
Loading files through the Boot ROM menu ·················································································································44

Introduction to the Boot ROM menu ···················································································································· 44

Loading files by using XMODEM through the console port·············································································· 46

Loading files by using TFTP through an Ethernet port························································································ 53

Loading files by using FTP through an Ethernet port ························································································· 56
Loading files at the CLI ·················································································································································· 59

Loading files by using FTP ···································································································································· 59

Loading files by using TFTP ·································································································································· 60

Maintenance and troubleshooting····························································································································61

File loading failure ························································································································································· 61

ii

Password loss ································································································································································· 61

User password loss ··············································································································································· 61

Boot ROM password loss ····································································································································· 61
Power supply failure ······················································································································································ 62
Configuration terminal failure······································································································································· 63

Appendix A Lightning Protection of the Switch········································································································64

Installation of Lightning Arrester for AC Power (Socket Strip with Lightning Protection) ········································ 64

iii

Product overview

Introduction

H3C S5120-SI Switch Series is a line of Layer 2 Gigabit Ethernet switching products developed by
Hangzhou H3C Technologies Co., Ltd. (hereinafter referred to as H3C). The S5120-SI switches are
intelligent manageable switches designed for network environments where high performance,
high-density port distribution, and easy installation are required.

With 10/100/1000 Mbps Ethernet interfaces, the S5120-SI switches are mainly deployed at the access
layer in enterprise networks requiring Gigabit to the Desktop (GTTD) application and at the distribution
layer in metropolitan-area networks (MANs). In the latter deployment, the S5120-SI Switch Series
provides GE el ect rical inte rfac es fo r use r acc ess o r low-end switch convergence in the downlink direction.
In the uplink direction, they are aggregated to large-capacity Layer 3 switches or switches at the
exchange office through their GE interfaces.

Table 1 and Table 2 show the models and system specifications of the S5120-SI Switch Series.

Table 1 System specifications for non-PoE switches of the S5120-SI Switch Series

Item S5120-9P-SI S5120-20P-SI S5120-28P-SI S5120-52P-SI

Physical
dimensions (H
× W × D)

Weight  2 kg (4.41 lb)  3 kg (6.61 lb)  3 kg (6.61 lb)  5 kg (11.02 lb)

Console port 1

Service ports

Input voltage
(AC)

Power
consumption

Power
consumption
(full
configuration)

43.6 × 210 × 210
mm (1.72 × 8.27 ×

8.27 in)

8 ×
10/100/1000Base­T autosensing
Ethernet ports + 4 GE
SFP interfaces

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Maximum voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

8.7 W 11.9 W 13.4 W 25.7 W

14.4 W 25.1 W 31.5 W 59.8 W

43.6 × 440 × 160
mm (1.72 × 17.32 ×

6.30 in)

16 ×
10/100/1000Base­T autosensing
Ethernet ports + 4 GE
SFP interfaces

43.6 × 440 × 160
mm (1.72 × 17.32 ×

6.30 in)

24 ×
10/100/1000Base­T autosensing
Ethernet ports + 4 GE
SFP interfaces

43.6 × 440 × 260
mm (1.72 × 17.32 ×

10.24 in)

48 ×
10/100/1000Base­T autosensing
Ethernet ports + 4 GE
SFP interfaces

Operating
temperature

Operating
humidity
(noncondensi
ng)

0°C to 50°C (32°F to
122°F)

10% to 90%

0°C to 45°C (32°F to 113°F)

1

Table 2 System specifications for the S5120-SI PoE switches

Item S5120-9P-HPWR-SI S5120-28P-PWR-SI S5120-28P-HPWR-SI

Physical dimensions
(H × W × D)

43.6 × 300 × 260 mm
(1.72 × 11.81 × 10.24 in)

43.6 × 440 × 420 mm
(1.72 × 17.32 × 16.54 in)

43.6 × 440 × 420 mm
(1.72 × 17.32 × 16.54 in)

Weight  3 kg (6.61 lb)  7 kg (15.43 lb)  7 kg (15.43 lb)

Console port 1

Service ports

Input
voltage

AC

RPS DC

8 × 10/100/1000Base-T
autosensing Ethernet ports
+ 1 GE SFP interface

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Maximum voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

—

24 × 10/100/1000Base-T autosensing Ethernet ports +
4 GE SFP interfaces

Use the external RPS unit
provided by H3C only,
with the rated voltage
ranging from –52 VDC to
–55 VDC

Supported RPS unit —

Power consumption 19 W 25.0 W

RPS1000-A3

RPS1600-A

AC: 45.6 W

DC: 27.5 W

AC power input: 528 W
(158 W for system power
consumption and 370 W
for PoE power
consumption)

DC power input: 832 W
(92 W for system power

Power consumption
(full configuration)

230 W (50 W for system
power consumption and
180 W for PoE power
consumption)

255 W (85 W for system
power consumption and
170 W for PoE power
consumption)

consumption and 740 W
for PoE power
consumption)

Operating
temperature

Operating humidity
(noncondensing)

0°C to 45°C (32°F to 113°F)

10% to 90%

2

S5120-9P-SI

Front panel

Figure 1 S5120-9P-SI front panel

(1) 10/100/1000Base-T auto-sensing Ethernet port (2) Port status LED
(3) Power LED (Power) (4) Console port
(5) 1000Base-X SFP interface

NOTE:

10/100/1000Base-T autosensing Ethernet ports on the S5120-SI Switch Series are numbered from top to
bottom and left to right as Port 1, Port 2, Port 3, and so on.

Rear panel

Figure 2 S5120-9P-SI rear panel

(1) AC receptacle (2) Grounding screw

Power supply system

AC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

Cooling system

The S5120-9P-SI adopts a noise-free and fanless design, and uses natural heat dissipation.

3

S5120-20P-SI

Front panel

Figure 3 S5120-20P-SI front panel

(1) 10/100/1000Base-T auto-sensing Ethernet port (2) Port status LED
(3) Power LED (Power) (4) Console port
(5) 1000Base-X SFP interface

Rear panel

Figure 4 S5120-20P-SI rear panel

(1)

(2)

(1) AC receptacle (2) Grounding screw

Power supply system

AC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

Cooling system

The S5120-20P-SI is equipped with one fan for heat dissipation

4

S5120-28P-SI

Front panel

Figure 5 S5120-28P-SI front panel

(1) 10/100/1000Base-T auto-sensing Ethernet port (2) Port status LED
(3) Power LED (Power) (4) Console port
(5) 1000Base-X SFP interface

Rear panel

Figure 6 S5120-28P-SI rear panel

(1) AC receptacle (2) Grounding screw

Power supply system

AC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

Cooling system

The S5120-28P-SI is equipped with one fan for heat dissipation.

5

S5120-52P-SI

Front panel

Figure 7 S5120-52P-SI front panel

(1) 10/100/1000Base-T auto-sensing Ethernet port
(2) 10/100/1000Base-T auto-sensing Ethernet port status LED
(3) Console port (4) Power LED (Power)
(5) 1000Base-X SFP interface (6) 1000Base-X SFP interface status LED

Rear panel

Figure 8 S5120-52P-SI rear panel

(1)

(2)

(1) AC receptacle (2) Grounding screw

Power supply system

AC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

Cooling system

The S5120-52P-SI is equipped with one fan for heat dissipation.

6

S5120-9P-HPWR-SI

Front panel

Figure 9 S5120-9P-HPWR-SI front panel

(1) 10/100/1000Base-T auto-sensing Ethernet port (2) Port mode LED
(3) Port status LED (4) Power LED (Power)
(5) Port status LED mode switching button (6) Console port Port
(7) 1000Base-X SFP interface

Rear panel

Figure 10 S5120-9P-HPWR-SI rear panel

(1) AC receptacle (2) Grounding screw

Power supply system

AC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

Cooling system

The H3C S5120-9P-HPWR-SI is equipped with three fans for heat dissipation.

7

S5120-28P-PWR-SI

Front panel

Figure 11 S5120-28P-PWR-SI front panel

(1) 10/100/1000Base-T auto-sensing Ethernet port (2) Port status LED mode switching button
(3) Port status LED (4) Power LED (Power)
(5) Port mode LED (6) Console port Port
(7) 1000Base-X SFP interface

Rear panel

Figure 12 S5120-28P-PWR-SI rear panel

(1) AC receptacle (2) Grounding screw

Power supply system

AC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

Cooling system

The H3C S5120-28P-PWR-SI is equipped with three fans for heat dissipation.

8

S5120-28P-HPWR-SI

Front panel

Figure 13 S5120-28P-HPWR-SI front panel

(1) 10/100/1000Base-T auto-sensing Ethernet port (2) Port status LED mode switching button
(3) RPS status LED (RPS) (4) Port status LED
(5) Power LED (Power) (6) Port mode LED
(7) Console port (8) Port 1000Base-X SFP interface

Rear panel

Figure 14 S5120-28P-HPWR-SI rear panel

(1) Screw hole of the plug (2) AC receptacle
(3) Grounding screw (4) DC power receptacle

Power supply system

The H3C S5120-28P-HPWR-SI can adopt AC power input, or DC power input, or both to provide backup

• AC power input:

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz

Input voltage range: 90 VAC to 264 VAC, 47 Hz or 63 Hz

• DC power input

Rated voltage range: –52 VDC to –55 VDC

9

CAUTION:

Only the RPS recommended by H3C can be used for the H3C S5120-28P-HPWR-SI. The –48 VDC
power supply in the equipment room cannot be used directly. Otherwise, the device may be
damaged.

Cooling system

The H3C S5120-28P-HPWR-SI is equipped with six fans for heat dissipation.

Ports

Console port

Each S5120-SI series provides one console port on the front panel.

Table 3 Console port specifications

Item Specification

Connector type

Compliant standard

Transmission baud rate 9600 bps to 115200 bps (defaulting to 9600 bps)

RJ-45

EIA/TIA-232

• It can be connected to an ASCII terminal.

Service

• It can be connected to a serial port of a local or remote (through a pair

of modems) PC running terminal emulation program.

10/100/1000Base-T Ethernet port

Each S5120-SI series provides 10/100/1000Base-T Ethernet ports on its front panel. Quantity of Ethernet
ports varies with the device model. For more information, see

Table 4 S5120-SI series 10/100/1000Base-T Ethernet port specifications

Item Specification

Connector type

Interface speed and operating
mode

RJ-45

• 10 Mbps, full duplex

• 100 Mbps, full duplex

• 1000 Mbps, full duplex

• MDI/MDI-X, auto-sensing

Table 1.

Max transmission distance

Transmission medium

Standard

100 m (328.1 ft.)

Category-5 unshielded twisted pair cable

IEEE 802.3i, IEEE 802.3u, IEEE 802.3ab

10

g

t

e

1000Base-X SFP interface

Each S5120-SI series provides one or four 1000Base-X SFP interfaces on its front panel. You can select
the GE SFP transceiver modules described in

Table 5 Transceivers supported by the S5120-SI series 1000Base-X SFP interfaces

Transceiver
type

Transceiver module

Table 5.

Central
wavelength

Connector Fiber

Max
transmiss
ion
distance

GE SFP
transceiver
module

SFP-GE-SX-MM850-A 850 nm

SFP-GE-LX-SM1310-A

1310 nm

SFP-GE-LH40-SM1310

SFP-GE-LH40-SM1550

1550 nm

SFP-GE-LH70-SM1550

SFP-GE-LX-SM1310-BIDI*

SFP-GE-LX-SM1490-BIDI*

TX: 1310

RX: 1490

TX: 1490

RX: 1310

LC

LC

50/125 m
multimode
optical fiber

62.5/125 m
multimode
optical fiber

9/125 m
single mode
optical fiber

9/125 m
single mode
optical fiber

550 m
(0.34
miles)

275 m
(0.17
miles)

10 km
(6.21
miles)

40 km
(24.86
miles)

40 km
(24.86
miles)

70 km
(43.50
miles)

10 km
(6.21
miles)

SFP-GE-T — RJ-45

* SFP-GE-LX-SM1310-BIDI and SFP-GE-LX-SM1490-BIDI must be used in pairs.

NOTE:

• H3C recommends you to use SFP transceiver modules of H3C on the S5120-SI series.

• The SFP transceiver modules available for this switch series are subject to chan

up-to-date list of SFP transceiver modules, consult your H3C sales representative or technical support
engineer.

• For the SFP transceiver module specifications, see the

Modules Manual

.

11

H3C Low End Series Ethernet Switches Pluggabl

Twisted pair
cable

e over time. For the mos

100 m
(328.08
ft)

LEDs

Table 6 LEDs

LED Device support Description

Power LED All series See “Power LED.”

RPS status LED S5120-28P-HPWR-SI See “RPS status LED.”

Port mode LED

10/100/1000Base-T
auto-sensing Ethernet port
status LED

1000Base-X SFP interface
status LED

Power LED

The power LED indicates the operation status of the switch.

Table 7 Description of the power LED

LED Status Description

Power

S5120-9P-HPWR-SI,
S5120-28P-PWR-SI, and
S5120-28P-HPWR-SI

All series

All series See “

Solid green The switch functions properly.

Blinking green (1 Hz)

Blinking green (3 Hz) The POST has failed or another fatal error has been detected.

The system is performing power-on self test (POST) or
downloading software.

See “Port mode LED.”

See “

10/100/1000Base-T auto-sensing

Ethernet port status LED.”

1000Base-X SFP interface status LED.”

RPS status LED

The H3C S5120-28P-HPWR-SI provides an RPS status LED on its front panel, indicating the working status
of the RPS of the switch.

Table 8 Description of the RPS status LED

LED Status Description

RPS

Port mode LED

The port mode LED on the S5120-9P-HPWR-SI, S5120-28P-PWR-SI, and S5120-28P-HPWR-SI can display
the working status of a port for you to obtain more device information. You can use the port mode
switching button to change the status of the port mode LED.

Off The switch has been powered off.

Solid green The RPS DC input is normal.

Off The RPS unit is not connected or the RPS DC input is abnormal.

12

Table 9 Port mode LED description

LED Status Description

Mode

Solid green Indicates port rate.

Blinking green (1 Hz) Indicates port PoE power supply.

10/100/1000Base-T auto-sensing Ethernet port status LED

NOTE:

• Each port of the S5120-52P-SI has a bi-color LED indicating its status. Each port of other models of the

S5120-SI Switch Series has two LEDs, with only one in the ON state at a time.

• Fo r e a c h p o r t of th e S 5120 - 9 P- H PW R - S I, S 512 0 -2 8 P- P W R- S I , a n d S 512 0 -28 P- H PW R- S I, t h e p o r t m o d e

LED and the status LED together indicate the port operation status.

Table 10 10/100/1000Base-T auto-sensing Ethernet port LEDs description

Switch model

Port mode
LED

Ethernet port status LED Meaning

The port operates at a rate of 1000
Mbps.

Data is being transmitted or received at
1000 Mbps.

Green

On

Fast blinking

S5120-9P-SI

S5120-20P-SI

S5120-28P-SI

S5120-52P-SI —

S5120-9P-HPWR-SI

S5120-28P-PWR-SI

S5120-28P-HPWR-SI

—

Solid
green (rate
mode)

Yellow

Green

Yellow

Green

Off

On

Fast blinking

Off

On

Fast blinking

On

Fast blinking

Off The port is not up.

On

Fast blinking

The port is not up or does not operate at
1000 Mbps.

The port operates at a rate of 10/100
Mbps.

Data is being transmitted or received at
10/100 Mbps.

The port is not up or does not operate at
10/100 Mbps.

The port operates at a rate of 1000
Mbps.

Data is transmitted or received at a rate of
1000 Mbps.

The port operates at a rate of 10/100
Mbps.

Data is transmitted or received at a rate of
10/100 Mbps.

The port operates at a rate of 1000
Mbps.

Data is transmitted or received at a rate of
1000 Mbps.

Off

13

The port is not up or does not operate at
1000 Mbps.

Switch model

Port mode
LED

Blinking
green (PoE
mode)

Ethernet port status LED Meaning

The port operates at a rate of 10/100
Mbps.

Data is transmitted or received at a rate of
10/100 Mbps.

The port is not up or does not operate at
10/100 Mbps.

Power consumption of the device
attached to the port exceeds the upper
limit of the power supply consumption of
the port, or the available power of the
switch is not enough for power supply of
the port.

No PoE power supply is provided on the
port.

The device connected to the interface is
not a PD device or a PoE failure occurs

No PoE power supply is provided on the
port or PoE power supply is normal.

Yellow

Green

Yellow

On

Fast blinking

Off

On PoE power supply is normal.

Blinking at 3
Hz

Off

On

Off

1000Base-X SFP interface status LED

NOTE:

For the S5120-9P-HPWR-SI, S5120-28P-PWR-SI, and S5120-28P-HPWR-SI, the port mode switching
button does not take effect for the 1000Base-X SFP interface LEDs.

Table 11 1000Base-X SFP interface status LEDs description

SFP interface status LED Meaning

Solid green

Blinking green The LED is fast flashing when data is being received on the port.

Off No link is present on the port.

The port operates at a rate of 1000 Mbps

The port is transmitting data at 1000 Mbps

14