This Installation Guide describes the hardware characteristics, installation methods and the
points that should be attended to during the installation. This Installation Guide is structured as
follows:
Chapter 1 Introduction
This chapter describes the external components of the switch.
Chapter 2 Installation
This chapter illustrates how to install the switch.
Chapter 3 Connection
This chapter illustrates how to do the physical connection of the switch.
Appendix A Troubleshooting
Appendix B Hardware Specifications
Audience
This Installation Guide is for:
Network Engineer Network Administrator
Conventions
• Some models featured in this guide may be unavailable in your country or region. For local sales
information, visit https://www.tp-link.com.
• The figures in Chapter 2 and Chapter 3 are for demonstration purposes only. Your switch may
differ in appearance from that depicted.
• This guide uses the specific formats to highlight special messages. The following table lists the
notice icons that are used throughout this guide.
Remind to be careful. A caution indicates a potential which may result in device damage.
Remind to take notice. The note contains the helpful information for a better use of the
product.
Related Document
The User Guide and CLI Reference Guide of the product are provided on the resource CD. To
obtain the latest product information, visit the official website:
3.7 Accessing the Switch ....................................................16
Appendix A Troubleshooting ———————— 17
Appendix B Hardware Specications ————— 18
JetStream L2 Managed Switch
Chapter 1 Introduction
1.1 Product Overview
Designed for workgroups and departments, TP-Link JetStream L2 Managed Switch provides wirespeed performance and abundant L2 management features. It provides a variety of service features
and multiple powerful functions with high security.
The EIA-standardized framework and smart configuration capacity can provide flexible solutions
for a variable scale of networks. ACL, 802.1x and Dynamic ARP Inspection provide robust security
strategies. QoS and IGMP snooping/filtering optimize voice and video application. Link aggregation
(LACP) increases aggregated bandwidth, optimizing the transport of business critical data. SNMP,
RMON, WEB and CLI Log-in bring abundant management policies. TP-Link JetStream L2 Managed
Switch integrates multiple functions with excellent performance, and is friendly to manage, which
can fully meet the need of the users demanding higher net working performance.
T2500G-10MPS/T2600G-28MPS is also a Power Sourcing Equipment (PSE*). All the RJ45 por ts on
the switch support Power over Ethernet (PoE*) function, which can automatically detect and supply
power to those powered devices (PDs*) complying with IEEE 802.3af and IEEE 802.3at.
*PSE: a device (switch or hub for instance) that provides power through an Ethernet cable.
*PoE: This technology describes a system to transmit electrical power, along with data, to remote
devices over standard twisted-pair cable in an Ethernet.
*PD: a device powered by a PSE and thus consumes energy. Examples include powering network
cameras, wireless LAN access points, IP telephones, network hubs, embedded computers etc.
1.2 Appearance
■
Front Panel
The front panel of TL-SG5412F is shown as the following figure.
Figu re 1-1 Front Panel of T L-SG5412F
LEDsConsole Port
SFP Port
The front panel of T2500G-10TS is shown as the following figure.
Figu re 1-2 Front Panel of T2500G -10TS
LEDs
Console Port
(RJ-45/USB)
10/100/1000Mbps
RJ45 Port
10/100/1000Mbps RJ45 Port
SFP Port
01Introduction
JetStream L2 Managed Switch
T2600G-28TS
T2600G-28TS-DC
The front panel of T2500G-10MPS is shown as the following figure.
Figu re 1-3 Front Panel of T2500G -10MPS
LEDsSFP Port10/100/1000Mbps
LED Mode
Switch Button
Console Port
(RJ-45/USB)
RJ45 Port
The front panel of T2500-28TC is shown as the following figure.
Figu re 1-4 Front Panel of T2500-28TC
LEDs
Console Port
10/100Mbps RJ45 Port
10/100/1000Mbps RJ45 Port
The front panel of T2600G-18TS is shown as the following figure.
Figu re 1-5 Front Panel of T2600G-18TS
LEDs
Console Port
(RJ45/USB)
10/100/1000Mbps
RJ45 Port
The front panel of T2600G-28TS is shown as the following figure.
Figu re 1-6 Front Panel of T2600G-28TS
SFP Port
SFP Port
LEDs
Console Port
(RJ45/USB)
10/100/1000Mbps
RJ45 Port
The front panel of T2600G-28TS-DC is shown as the following figure.
Figu re 1-7 Front Panel of T2600G-28TS- DC
LEDs
Console Port
(RJ45/USB)
10/100/1000Mbps
RJ45 Port
02Introduction
SFP Port
SFP Port
JetStream L2 Managed Switch
The front panel of The T2600G-28MPS is shown as the following figure.
Figu re 1-8 Front Panel of T2600G-28MPS
LEDs
LED Mode
Switch Button
Console Port
(RJ45/USB)
10/100/1000Mbps
RJ45 Port
SFP Port
The front panel of The T2600G-28SQ is shown as the following figure.
Figu re 1-9 Front Panel of T2600G-28SQ
Link/Act
2 4 6 8 10 12 14 16 18 20 22 24
PWR
SYS
FAN
1 3 5 7 9 11 13 15 17 19 21 23 25
1000Mbps
LEDs
10Gbps
28
1Gbps
activity
27
26
)
Console(RJ-45
)
Console(USB
111 13 15
Console Port
(RJ45/USB)
84 62
3 5 7
1612 1410
919 21 23
17
10/100/1000Mbps
2420 22
21T23TSFP+
RJ45 Port
24T22T18
25 26 27 28
SFP+ PortSFP Port
The front panel of The T2600G-52TS is shown as the following figure.
Figu re 1-10 Front Panel of T2600G-52TS
ConsoleConsole(USB)
Console Port
(RJ45/USB)
LEDs
10/100/1000Mbps
RJ45 Port
SFP Port
LEDs
For TL-SG5412F/T2500G-10TS/T2500-28TC/T2600G-18TS/T2600G-28TS/T2600G-28TS-DC/
T2600G-28SQ / T2600G-52TS
LEDIndication
Note: Power for T250 0-28TC and PWR for the other switches.
Power
PWR
On: The switch is powered on.
Off: The switch is powered off or power supply is abnormal.
Flashing: Power supply is abnormal.
System
SYS
Note: System for T2500-28TC and SYS for the other switches.
Flashing: The switch works properly.
On or Off: The switch works improperly.
Note: Only for T2600G -28SQ.
FAN
Green On: The fan works normally.
Yel low On : The fan works abormally.
03Introduction
JetStream L2 Managed Switch
LEDIndication
Note: Only for ports1-24 of T2500-28TC.
Green On: Running at 100Mbps, but no activity.
10/10 0M
1000M
10/10 0/100 0M
10/10 0/100 0BAS E-T
1000Mbps
Green Flashing: Running at 100Mbps and is transmitting or receiving data.
Yel low On : Running at 10Mbps, but no activity.
Yellow Flashing: Running at 10Mbps and is transmitting or receiving data.
Off: No device is linked to the corresponding port.
Note: 1000M for ports25-28 of T2500-28TC, 10/100/1000M for T2500G-10TS and
ports 1-48 of T2600G-52TS, 10/100/1000Base-T for ports 9T-12T of TL-SG5412F.
Green On: Running at 1000Mbps, but no activity.
Green Flashing: Running at 1000Mbps and is transmitting or receiving data.
Yel low On : Running at 10/100Mbps, but no activity.
Yellow Flashing: Running at 10/100Mbps and is transmitting or receiving data.
Off: No device is linked to the corresponding port.
Note: For TL-SG5412F/T2600G-18TS/T2600G-28TS/T2600G-28TS-DC and
ports1-24 of T2600G-28SQ.
On: Running at 1000Mbps.
Off: Running at 10/100Mbps or no device is linked to the corresponding por t.
For TL-SG5412F/T2600G-18TS/T2600G-28TS/T2600G-28TS-DC/ T2600G-52TS
and ports 1-24 of T2600G-28SQ:
On: A device is linked to the corresponding port and running properly.
Flashing: Transmitting or receiving data.
Off: No device is linked to the corresponding port.
Link/Act
SFP1, SFP2
For por ts 25-28 of T2600G-28SQ:
Green On: Running at 10Gbps, but no activity.
Green Flashing: Running at 10Gbps and is transmitting or receiving data.
Yel low On : Running at 1000Mbps, but no activit y.
Yellow Flashing: Running at 1000Mbps and is transmitting or receiving data.
Off: No device is linked to the corresponding port.
Note: Only for T2500G-10TS.
Green On: A 1000Mbps device is linked to the corresponding port, but no activity.
Green Flashing: A 1000Mbps device is linked to the corresponding port and data is
being transmitted or received.
Yel low On : A 100Mbps device is linked to the corresponding port, but no activity.
Yellow Flashing: A 100Mbps device is linked to the corresponding port and is
transmitting or receiving data.
Off: No device is linked to the corresponding port but no activit y.
For T2500G-10MPS/T2600G-28MPS
T2500G-10MPS/T2600G-28MPS has an LED mode switch button which is used to switch the LED
status indication. When the Speed LED is on, the port LED is indicating the data transmission rate.
When the PoE LED is on, the port LED is indicating the power supply status. By default the Speed LED
04Introduction
JetStream L2 Managed Switch
is on. Pressing the mode switch button, the Speed LED will turn off and the PoE LED will light up. Then
the PoE LED will turn off after being on for 60 seconds and the Speed LED will light up again.
LEDIndication
On: The switch is powered on.
PWR
Off: The switch is powered off or power supply is abnormal.
Flashing: Power supply is abnormal.
SYS
Flashing: The switch works properly.
On or Off: The switch works improperly.
Green: All the fans work properly.
FAN
Yel low : Not all the fans work properly.
Off: The switch works improperly.
PoE Max
(Wh en the PoE LE D
is on)
On: The remaining PoE power is equal to or less than 7W.
Flashing: The remaining PoE power is equal to or less than 7W and lasts for more than
2 minutes.
Off: The remaining PoE power is larger than 7W.
Green On: Running at 1000Mbps, but no activity.
Speed or PoE
(Wh en the Spee d
LED is o n)
Green Flashing: Running at 1000Mbps and is transmitting or receiving data.
Yel low On : Running at 10/100Mbps, but no activity.
Yellow Flashing: Running at 10/100Mbps and is transmitting or receiving data.
Off: No device is linked to the corresponding port.
Green On: The port is supplying power normally.
Speed or PoE
(Wh en the PoE LE D
is on)
Green Flashing: The supply power exceeds the correponding port's maximum power.
Yel low On : Overload or short circuit is detected.
Yellow Flashing: Power-on self-test failed.
Off: Not providing PoE power on the port.
Note: SFP1 and SFP2 for T2500G-10MPS, SFP for T2600G-28MPS
Green On: A 1000Mbps device is linked to the corresponding port, but no activity.
Green Flashing: A 1000Mbps device is linked to the corresponding port and data is
SFP
SFP1, SFP2
being transmitted or received.
Yel low On : A 100Mbps device is linked to the corresponding port, but no activity.
Yellow Flashing: A 100Mbps device is linked to the corresponding port and is
transmitting or receiving data.
Off: No device is linked to the corresponding port.
Console Port (RJ-45/USB)
Designed to connect with a computer for monitoring and configuring the switch. For T2500G-10TS/
T2500G-10MPS/T2600G-18TS/T2600G-28TS/T2600G-28TS-DC/T2600G-28MPS/
T2600G-28SQ/T2600G-52TS, the switch has an RJ-45 console port and a micro-USB console port.
Console input is active on only one console port at a time. By default, the micro-USB connector takes
precedence over the RJ-45 connector.
10/100Mbps RJ45 Port
Designed to connect to the device with a bandwidth of 10Mbps or 100Mbps.
05Introduction
JetStream L2 Managed Switch
100-240V~50/60Hz 0.5A
10/100/1000Mbps RJ45 Por t
Designed to connect to the device with a bandwidth of 10Mbps, 100Mbps or 1000Mbps. For
T2500G-10MPS/T2600G-28MPS, the por t can also provide power for PDs.
SFP Port
Designed to install the 1Gbps SFP module. For T2600G-28SQ, ports 17-24 also support 100Mbps
SFP module.
SFP+ Port
Designed to install the 10Gbps SFP+ module.
Combo Ports
A Combo port consists of one RJ45 port and one SFP port, and they share the same por t ID. The
SFP port and the associated RJ45 port cannot work simultaneously. If both of the two ports are
connected, only the SFP port works.
For T2500-28TC, RJ45 ports 25-28 and SFP ports 25-28 are combo ports; For T2600G-28SQ, RJ45
ports 21-24 and SFP ports 21-24 are combo ports.
Port Feature
Model
TL-S G5412 F401201
T25 00 G-10T S80202
T25 00-28TC424401
T25 00 G-10MPS80202
T26 00 G-18TS1602 02
T2600G -28TS2404 02
T2600G-28TS-DC2404 02
T2600G-28MPS2404 02
T2600G -28SQ402442
T2600G-52TS480402
■
Rear Panel
10/10 0/100 0Mbps
RJ45 Por t
10/10 0Mbps RJ45
Port
SFP PortSFP+ Por t
Console
Port
For TL-SG5412F/T2500G-10TS/T2500G-10MPS/T2500-28TC/T2600G-18TS/T2600G-28TS/
T2600G-28MPS/T2600G-28SQ/ T2600G-52TS
The rear panel is shown as the following figure. Here we take T2600G-28TS as an example.
Figu re 1-11 Rear Pane l of T2600G-28T S
Kensington Security slot
Grounding Terminal
Power Socket
06Introduction
For T2600G-28TS-DC
The rear panel is shown as the following figure.
Figu re 1-12 Rear Panel of T2600G -28TS-DC
JetStream L2 Managed Switch
Kensington Security slot
Grounding Terminal
DC Power Input
Kensington Security Slot
Secure the lock (not provided) into the security slot to prevent the device from being stolen.
Note:
TL-SG5412F/T2500-28TC does not have a kensington security slot.
Grounding Terminal
The switch already comes with lightning protection mechanism. You can also ground the switch
through the PE (Protecting Earth) cable of AC cord or with Ground Cable. For detailed lightning
protection measures, go to https://ww w.tp-link.com/support, search the model number of your
switch and go to the product Support web page, refer to the Lightning Protection Guide from the Related Documents:
https://www.tp-link.com/us/configuration-guides/lightning_protection_guide/
Power Socket
Plug the negative connector of the power cord directly into the power socket and plug the positive
connector into an AC power outlet. Make sure that the voltage of the power supply meets the
requirement of the input voltage (100-240V~ 50/60Hz).
Note:
You should use the provided power cord.
DC Power Input
Attach the power wires to the DC power input. We recommend you use 22-14 AWG wires. Connect
the positive pole of the DC power supply to the "+" end, and the negative pole to the "-" end. Make
sure the power supply meets the requirement of the input (18-48V 1.2A). A disconnecting device
like an isolating switch shall be installed and easily accessible. The disconnecting device shall have a
contact separation at least equal to the minimum clearance for basic insulation.
Note:
The power wires and disconnecting device are not included with our product. If needed, you
can purchase them separately.
07Introduction
JetStream L2 Managed Switch
Chapter 2 Installation
2.1 Package Contents
Make sure that the package contains the following items. If any of the listed items is damaged or
missing, contact your distributor.
One Switch
One Power Cord, One Console
Cable and One USB Cable
Installation Guide
Business Networking Solution
Installation Guide
One Resouce CD
Two mounting brackets, eight
screws and four rubber feet
Note:
The USB Cable is not provided with TL-SG5412F/T2500-28TC. The power cord is not provided
with T2600G-28TS-DC.
2.2 Safety Precautions
To avoid any device damage and bodily injury caused by improper use, you should observe the
following rules.
■
Safety Precautions
■
Keep the power off during the installation.
■
Wear an ESD-preventive wrist strap, and make sure that the wrist strap has a good skin contact and is
well grounded.
■
Use only the power cord provided with the switch.
■
Make sure that the supply voltage matches the specifications indicated on the rear panel of the
switch.
■
Ensure that the switch is installed in a well-ventilated environment and its ventilation hole is not
blocked.
■
Do not open or remove the cover of the switch.
■
Before cleaning the device, cut off the power supply. Do not clean it by the waterish cloth, and never
use any other liquid cleaning method.
■
Place the device with its bottom surface downward.
08Installation
JetStream L2 Managed Switch
■
Site Requirements
Temperature/Humidity
40℃
0℃
Keep the equipment room at an appropriate level of temperature and humidity. Too much or too
little humidity may lead to bad insulation, leakage of electricity, mechanical property changes,
and corrosion. High temperatures may accelerate aging of the insulation materials, significantly
shortening the service life of the device. To find out the best temperature and humidity conditions
for the device, check the following table.
EnvironmentTemperatureHumidity
Operating0℃ to 40
Storage-40℃ to 70
℃
℃
10% to 90%RH Non-condensing
5% to 90%RH Non-condensing
Clearness
The dust accumulated on the switch can be absorbed by static electricity and result in poor contact
of metal contact points. Some measures have been taken for the device to prevent static electricity,
but too strong static electricity can cause deadly damage to the electronic elements on the internal
circuit board. To avoid the effect of static electricity on the operation of the Switch, attach much
importance to the following items:
■
Dust the device regularly, and keep the indoor air clean.
■
Keep the device well grounded and ensure that the static electricity has been transferred.
Electromagnetic Interference
Electronic elements including capacitance and inductance on the device can be affected by external
interferences, such as conducted emission by capacitance coupling, inductance coupling, and
impedance coupling. To decrease the interferences, make sure to take the following measures:
■
Use the power supply that can effectively filter interference from the power grid.
■
Keep the device far from high-frequency and strong-current devices such as radio transmitting
station.
■
Use electromagnetic shielding when necessary.
09Installation
JetStream L2 Managed Switch
Lightning Protection
Extremely high voltage currents can be produced instantly when lightning occurs and the air in the
electric discharge path can be instantly heated up to 20,000℃. As this instant current is strong
enough to damage electronic devices, more effective lightning protection measures should be
taken.
■
Ensure that the rack and the device are well earthed.
■
Make sure the power socket has a good contact with the ground.
■
Keep a reasonable cabling system and avoid induced lightning.
■
Use the signal SPD (Surge Protective Device) when wiring outdoor.
Note:
For detailed lightning protection measures, go to https://w ww.tp-link.com/support, search
the model number of your switch and go to the product Support web page, refer to the
Lightning Protection Guide from the Related Documents:
When installing the device on a rack or a flat workbench, attach much impor tance to the following
items:
■
The rack or workbench is flat, stable, and sturdy enough to support the weight of 5.5 kg at least.
■
The rack or workbench has a good ventilation system. The equipment room is well ventilated.
■
The rack is well grounded. Keep the device less than 1.5 meters away from the power socket.
2.3 Installation Tools
■
Phillips screwdriver
■
ESD-preventive wrist wrap
■
Cables
Note:
These tools are not included with our product. If needed, you can purchase them separately.
10Installation
JetStream L2 Managed Switch
2.4 Product Installation
■
Desktop Installation
To install the device on the desktop, follow the steps:
1. Set the device on a flat surface which is strong enough to support the entire weight of the device
with all fittings.
2. Remove the adhesive backing papers from the rubber feet.
3. Turnover the device and attach the supplied rubber feet to the recessed areas on the bottom at
each corner of the device.
Figu re 2-1 Desktop Installation
Feet
Bottom of the Device
Notch
■
Rack Installation
To install the device in an EIA standard-sized, 19-inch rack, follow the instructions described below:
1. Check the efficiency of the grounding system and the stabilit y of the rack.
2. Secure the supplied rack-mounting brackets to each side of the device with supplied screws, as
illustrated in the following figure.
Figu re 2-2 Bracket Installation
Rack-mounting Bracket
Screw
11Installation
JetStream L2 Managed Switch
3. After the brackets are attached to the device, use suitable screws (not provided) to secure the
brackets to the rack, as illustrated in the following figure.
Figu re 2-3 Rack Installation
Rack
Caution:
■
Leave 5 to 10 cm gaps around the devices for air circulation.
■
Avoid placing heavy things on the device.
■
Mount devices in sequence from the bottom to top of the rack and ensure a certain clearance
between devices for the purpose of heat dissipation.
12Installation
JetStream L2 Managed Switch
Chapter 3 Connection
3.1 Ethernet Port
Connect an Ethernet port of the switch to the computer by RJ45 cable as the following figure shows.
Figu re 3-1 Conn ecting th e RJ45 Port
RJ45 Port
RJ45 Cable
3.2 SFP Port
The following figure demonstrates the connection of SFP port to an SFP module.
Figu re 3-2 Inserting the SFP Module
SFP Slot
SFP Module
3.3 Console Port
CLI (Command Line Interface) enables you to manage the switch, thus you can load the CLI after
connecting the PCs or Terminals to the console port on the switch via the provided cable.
13Connection
JetStream L2 Managed Switch
Connect the Console (RJ-45) port of the device with your computer by the console cable as the
following figure shows.
Figu re 3-3 Connecting the Console (RJ-45) Port
Console(RJ45)
Connect the Console (USB) port of the device with your computer by the USB cable as the following
figure shows.
Figu re 3-4 Conn ecting the Cons ole (USB) Port
Console(USB)
T2600G-28TS
Note:
■
Console (RJ-45) port and Console (USB) port cannot be used concurrently. Console (USB)
port takes priority over the Console (RJ-45) port.
■
The Console (USB) port is hot-pluggable while the Console (RJ-45) port is not. Keep the
device power off when plugging the console cable into the Console (RJ-45) port.
■
Do not connect the console port with other ports by RJ45 cable.
■
TL-SG5412F and T2500-28TC do not have a Console (USB) port.
3.4 Verify Installation
After completing the installation, verify the following items:
■
There should be 5 to 10 cm of clearance around the device for ventilation and make sure the air flow
is adequate.
■
The voltage of the power supply meets the requirement of the input voltage of the device.
■
The power socket, device and rack are well grounded.
■
The device is correctly connected to other network devices.
14Connection
JetStream L2 Managed Switch
vice
3.5 Power On
For TL-SG5412F/T2500G-10TS/T2500G-10MPS/T2500-28TC/T2600G-18TS/T2600G-28TS/
T2600G-28MPS/T2600G-28SQ/ T2600G-52TS
Plug the negative connector of the power cord directly into the power socket and plug the positive
connector into an AC power outlet as the following figure shows. Make sure that the voltage of the
power supply meets the requirement of the input voltage (100-240V~ 50/60Hz).
Figu re 3-5 Connecting to the Power Supply
100-240V~50/60Hz 0.5A
Note:
The gure is to illustrate the application and principle. The provided plug and the socket in your
region may dier from the gures above.
For T2600G-28TS-DC
Attach the power wires to the DC power input as the following figure shows. We recommend you use
22-14 AWG wires. Connect the positive pole of the DC power supply to the "+" end, and the negative
pole to the "-" end. Make sure the power supply meets the requirement of the input (18-48V 1.2A). A
disconnecting device like an isolating switch shall be installed and easily accessible. The
disconnecting device shall have a contact separation at least equal to the minimum clearance for
basic insulation.
Figu re 3-6 Connecting to the Power Supply
To a disconnecting de
and DC power supply
Note:
The figure is to illustrate the application and principle. The power wires and disconnecting
device are not included with our product. If needed, you can purchase them separately.
15Connection
JetStream L2 Managed Switch
3.6 Initialization
After the device is powered on, it begins the Power-On Self-Test. A series of tests run automatically
to ensure the device functions properly. During this time, its LED indicators will respond in the
following order:
1. The PWR LED indicator lights on all the time. The SYS LED and the LED indicators of all the ports
keep off.
2. After about one minute, the SYS LED and LED indicators of all the ports will flash momentarily and
then turn off.
3. Several seconds later, the SYS LED indicator will flash, which represents a successful initialization.
3.7 Accessing the Switch
After the initialization finished, you can access and manage the switch using the GUI (Graphical User
Inter face) or using the CLI (Command Line Inter face).
■
To access the switch using the GUI, open a web browser and type the default management address
http://192.168.0.1 in the address field, then press the Enter key. The default Username and Password
are both admin in lower case letters.
■
To access the switch using the CLI, you can use the Console port, Telnet and SSH connection. When
using the Console port, start the terminal emulation program (such as the Hyper Terminal) on the PC
and configure the terminal emulation program as follows:
Baud RateData BitsParityStop BitsFlow Control
38400bps8None1None
For the detailed configurations, refer to the Configuration Guide and CLI Reference Guide. The two
guides can both be found on the resource CD or on the download center of our official website:
https://www.tp-link.com/en/download-center.html.
16Connection
JetStream L2 Managed Switch
Appendix A Troubleshooting
Q1. What could I do if I forgot the username and password of the switch?
1. Connect the console port of the PC to the console port of the switch and open a terminal
emulation program.
2. Power off and restart the switch. Perform the action indicated by the terminal emulation
program to reach the bootUtil menu. The action differs from product to product. Possible
actions are listed below:
• Press any key to stop autoboot.
• Press CTRL-B to reach the bootUtil menu.
3. The bootUtil menu will be shown. Enter the number 6 to select the “Password recovery”
option and enter Y to delete all the users and passwords. The default login username and
password are both admin. The other configurations in the switch will not be changed.
4. For models without the password recover feature, select the "Reset" option to restore all
the configurations to factory defaults. The default login username and password are both
admin.
Q2. Why does the PWR/Power LED work abnormally?
The PWR/Power LED should be lit up when the power system works normally. If the PWR/
Power LED worked abnormally, take the following steps:
1. Make sure that the power cable is connected properly, and the power contact is normal.
2. Make sure the voltage of the power supply meets the requirement of the input voltage of the
switch.
Q3. What should I do if I cannot access the web management page?
Try the following:
1. Check every por t LED on the switch and make sure the Ethernet cable is connected
properly.
2. Try another port on the switch and make sure the Ethernet cable is suitable and works
normally.
3. Power off the switch and, af ter a while, power it on again.
4. Make sure the IP address of your PC is set within the subnet of the switch.
5. If you still cannot access the configuration page, reset the switch to its factory defaults.
Then the IP address of your PC should be set as 192.168.0.x ("x" is any number from 2 to 254)
and subnet mask as 255.255.255.0.
Q4. Why is the terminal emulation program not displaying correctly?
Try the following:
1. Make sure the power supply is normal and the console cable is properly connected.
2. Check if the console cable is the right type.
3. Ensure the parameters of the terminal emulation program are correct: configure Bits per
second as 38400, Data bits as 8, Parity as None, Stop bits as 1, and Flow control as None.