TP-Link T2500-28TC User manual

Business Networking Solution
Installation Guide
JetStream 24-Port 10/100Mbps +
4-Port Gigabit L2 Managed Switch
T2500-28TC (TL-SL5428E)

Related Document
The User Guide and CLI Reference Guide of the product are provided on the
resource CD.
To obtain the latest product information, please visit the Official Website:
http://www.tp-link.com
About this Installation Guide
This Installation Guide describes the hardware characteristics, installation methods
and the points that should be attended to during 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 Lightning Protection. This chapter illustrates how to prevent lightning
damage.
Chapter 4 Connection. This chapter illustrates how to do the physical connection
of the switch.
Chapter 5 Configuration. This chapter instructs you to configure the switch via
Web Interface and CLI commands.
Appendix A Troubleshooting.
Appendix B Hardware Specifications.
Audience
This Installation Guide is for:
Network Engineer Network Administrator
Conventions
■The figures in Chapter 2 to Chapter 4 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.

Contents
Chapter 1 Introduction ———————————— 01
1.1 Product Overview.........................................01
1.2 Appearance .................................................01
Chapter 2 Installation ————————————— 03
2.1 Package Contents.........................................03
2.2 Safety Precautions........................................03
2.3 Installation Tools..........................................05
2.4 Product Installation ......................................05
Chapter 3 Lightning Protection ———————— 07
3.1 Cabling Reasonably ......................................07
3.2 Connect to Ground .......................................09
Chapter 4 Connection ————————————— 12
4.1 Ethernet Port ...............................................12
4.2 SFP Port ......................................................12
4.3 Console Port ................................................12
4.4 Verify Installation .........................................13
4.5 Power On ..................................................13
4.6 Initialization.................................................14
Chapter 5 Conguration———————————— 15
5.1 Congure the Switch via GUI ........................15
5.2 Congure the Switch Using CLI .....................16
Appendix A Troubleshooting—————————— 19
Appendix B Hardware Specications —————— 20

01
L2 Managed Switch
Introduction
Chapter 1 Introduction
1.1 Product Overview
TP-Link JetStream L2 Managed Switch, designed for workgroups and departments,
provides wire-speed performance and abundant layer 2 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/
CLI/Telnet 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
networking performance.
1.2 Appearance
■Front Panel
The front panel of T2500-28TC is shown as the following figure.
Figure 1-1 Front Panel of T2500-28TC
LEDs 10/100Mbps RJ45 Port SFP Port
10/100/1000Mbps RJ45 Port
Console Port
LEDs
LED Status Indication
Power
On The switch is powered on
Off The switch is powered off or power supply is abnormal
Flashing Power supply is abnormal
System Flashing The switch works properly
On/Off The switch works improperly
10/100M
On Green Running at 100Mbps
Yellow Running at 10Mbps
Flashing Data is being transmitted or received
Off Not linked
1000M
On Green Running at 1000Mbps
Yellow Running at 10/100Mbps
Flashing Data is being transmitted or received
Off Not linked

02
L2 Managed Switch
Introduction
Note: The port 25–28 of the switch are “Combo” ports. A “Combo” port consists of a
RJ45 port and an SFP port, and the two ports share the same LED.
Port Feature
Model Console Port 10/100Mbps
RJ45 Port
10/100/1000Mbps
RJ45 Port SFP Port
T2500-28TC 124 4 4
Console Port
Designed to connect with the serial port of a computer or terminal for monitoring
and configuring the switch.
10/100Mbps Port
Designed to connect to the device with a bandwidth of 10Mbps or 100Mbps.
Each has a corresponding 10/100M LED.
10/100/1000Mbps Port
Designed to connect to the device with a bandwidth of 10Mbps, 100Mbps or
1000Mbps. Each has a corresponding 1000M LED.
SFP Port
Designed to install the SFP module. The switch features some SFP transceiver
slots that are shared with the associated RJ45 ports. The associated two ports
are referred as a “Combo” port, which means they cannot be used simultaneously,
otherwise only SFP port works.
■Rear Panel
The rear panel of T2500-28TC is shown as the following figure.
Figure 1-2 Rear Panel of T2500-28TC
Grounding Terminal Power Socket
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 information, please refer to Chapter 3 Lightning
Protection.
Power Socket
Connect the female connector of the power cord here, and the male connector to
the AC power outlet. Please make sure the voltage of the power supply meets the
requirement of the input voltage (100-240V~ 50/60Hz).
Caution: Please use the provided power cord.

03
L2 Managed Switch
Installation
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, please contact your distributor.
One Resource CD
One Switch One Power Cord and one
Console Cable
This Installation Guide
Two mounting brackets,eight
screws and four feet
Installation Guide
BusinessNetworking Solution
2.2 Safety Precautions
To avoid any device damage and bodily injury caused by improper use, please
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 the vent hole is well ventilated and unblocked.
■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.
■Site Requirements
To ensure normal operation and long service life of the device, please install it in an
environment that meets the requirements described in the following subsection.
Temperature/Humidity
40℃
0℃

04
L2 Managed Switch
Installation
Please keep a proper temperature and humidity in the equipment room. Too high/
low humidity may lead to bad insulation, electricity leakage, mechanical property
changes and corrosions. Too high temperature may accelerate aging of the
insulation materials and can thus significantly shorten the service life of the device.
For normal temperature and humidity of the device, please check the following
table.
Environment Temperature Humidity
Operating 0℃to 40℃10% to 90%RH Non-condensing
Storage -40℃to 70℃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, please attach much importance
to the following items:
■Dust the device regularly, and keep the indoor air clean.
■Keep the device well grounded and ensure 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, please 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, strong-current devices, such as radio
transmitting station.
■Use electromagnetic shielding when necessary.
Lightening 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

05
L2 Managed Switch
Installation
this instant current is strong enough to damage electronic devices, more effective
lightning protection measures should be taken.
■Ensure the rack and 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, please refer to Chapter 3
Lightning Protection.
Installation Site
When installing the device on a rack or a flat workbench, please note the following
items:
■The rack or workbench is flat and stable, and sturdy enough to support the weight
of 5.5kg at least.
■The rack or workbench has a good ventilation system. The equipment room is well
ventilated.
■The rack is well grounded. Keep the power socket less than 1.5 meters away from
the device.
2.3 Installation Tools
■Phillips screwdriver
■ESD-preventive wrist wrap
■Cables
Note: These tools are not provided with our product. If needed, please purchase
them.
2.4 Product Installation
■Desktop Installation
To install the device on the desktop, please follow the steps below:
1. Set the device on a flat surface strong enough to support the entire weight of the
device with all fittings.
2. Remove the adhesive backing papers from the rubber feet.

06
L2 Managed Switch
Installation
3. Turnover the device and attach the supplied rubber feet to the recessed areas on
the bottom at each corner of the device.
Figure 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 grounding and stability 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.
Figure 2-2 Bracket Installation
Rack-
mounting
Bracket
Screw
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.
Figure 2-3 Rack Installation
Rack
Caution:
■Please set 5–10cm gaps around the device for air circulation.
■Please avoid any heavy thing placed on the device.
■Please 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.

07
L2 Managed Switch
Lightning Protection
Chapter 3 Lightning Protection
3.1 Cabling Reasonably
In the actual network environment, you may need cable outdoors and indoors, and
the requirements for cabling outdoors and indoors are different. A reasonable
cabling system can decrease the damage of induced lightning to devices.
Note: It’s not recommended to use Ethernet cables outdoors. When cabling
outdoors, please use a signal lightning arrester.
■Requirements for Cabling Outdoors
■Aerial cabling without safeguard is not allowed.
■It’s not allowed cabling down the building to connect network devices in different
floors.
■Outdoor cables should be buried and paved to the indoor through basement. A
piece of steel wire should be paved underground along the pipe and connected to
the lightning protection terminal of the building for shielding. Before connecting
the cable to the device, install a signal lightning arrester on the corresponding
port.
■When an aerial cable is set up, the cable should be through a metal pipe (15m long
at least) before coming into the building. The two ends of this metal pipe should
be grounded. Before connecting the cable to the device, install a signal lightning
arrester on the corresponding port.
■It’s not necessary to pave STP cables through pipes. The shielded layer of STP
cable should be well grounded. Before connecting the cable to the device, install a
signal lightning arrester on the corresponding port.
■Requirements for Cabling Indoors
When cabling indoors, keep a certain distance away from the devices that may
cause high-frequency interferences, such as down-conductor cable, powerline,
power transformer and electromotor.
■The main cable should be paved in the metal raceway of the access shaft. When
cabling, keep the loop area formed by the cable itself as small as possible.

08
L2 Managed Switch
Lightning Protection
■Requirements for the distance between Ethernet cable and other pipelines are
shown in the table.
Other Pipelines
Ethernet Cable
Min Parallel Net
Length L (mm)
Min Parallel-overlapping Net
Height H (mm)
Down-conductor 1000 300
PE 50 20
Service pipe 150 20
Compressed air pipe 150 20
Thermal pipe (not
wrapped) 500 500
Thermal pipe (wrapped) 300 300
Gas pipe 300 20
The two diagrams below demonstrate parallel net length and parallel-overlapping
net height.
Note: The above minimum net length/height is required when metal raceway is not
used. If any requirements cannot be met, you can add a steel tube or metal raceway
for shielding.
■Requirements for the distance between Ethernet cable and high-power electric
devices are in following tables.
Cable Pave Way Min Parallel
Length (mm)
<2kVA
powerline
Parallel cabling 130
One is in the grounded metal raceway or metal pipe 70
The both are in the grounded metal raceway or metal pipe 10
2 to 5kVA
powerline
Parallel cabling 300
One is in the grounded metal raceway or metal pipe 150
The both are in the grounded metal raceway or metal pipe 80
>5kVA
powerline
Parallel cabling 600
One is in the grounded metal raceway or metal pipe 300
The both are in the grounded metal raceway or metal pipe 150
Device Min Distance (m)
Switch case 1.00
Transformer room 2.00
Elevator tower 2.00
Air-conditioner room 2.00

09
L2 Managed Switch
Lightning Protection
3.2 Connect to Ground
Connecting the device to ground is to quickly release the lightning over-voltage and
over-current of the device, which is also a necessary measure to protect the body
from electric shock.
In different environments, the device may be grounded differently. The following
will instruct you to connect the device to the ground in two ways, connecting to
the grounding bar or connecting to the ground via the power cord. Please connect
the device to ground in the optimum way according to your specific operation
environment.
Note:
For the device without grounding terminal, please refer to the rst way Connecting to
the Ground via the Power Supply only.
■Connecting to the Ground via the Power Supply
If the device is installed in the normal environment, the device can be grounded via the
PE (Protecting Earth) cable of the AC power supply as shown in the following figure.
Figure 3-4 Connecting to the Ground
Note:
■The figure is to illustrate the application and principle. The power cord you get
from the package and the socket in your situation will comply with the regulation in
your country, so they may differ from the figure above.
■If you intend to connect the device to the ground via the PE (Protecting Earth)
cable of AC power cord, please make sure the PE (Protecting Earth) cable in the
electrical outlet is well grounded in advance.
■Connecting to the Ground via the Grounding Terminal
Use the grounding bar
If the device is installed in the Equipment Room, where a grounding bar is available,
you are recommended to connect the device to the Grounding Bar as shown in the
following figure.

10
L2 Managed Switch
Lightning Protection
Figure 3-1 Connecting to the Grounding Bar
Switch (Rear Panel)
Ground Cable
Grounding Terminal
Grounding Bar
Note: The grounding bar and ground cable are not provided with our product. If
needed, please purchase them.
Equipotential Bonding
Equipotential Bonding is the practice of intentionally electrically connecting all
earthed systems to the same grounding grid or connecting the grounding grids of
all the earthed systems together through the ground or overground metal so as
to create an earthed equipotential zone. When lightning occurs, the high voltage
produced by lightning current in all systems will meanwhile exist in their ground
cables, and thus all ground cables have the same electrical potential and basically
eliminate the electric strikes between the systems.
The figure bellow illustrates how to practice equipotential bonding in a network.
Figure 3-2 Equipotential Bonding
Grounding Terminal Equipotential Bonding Cable
Grounding BarGround Cable

11
L2 Managed Switch
Lightning Protection
When equipotential bonding, please note that the cable should be copper wrapped
Kelly with its area being 6mm2at least. The shorter cable the better, and use a
grounding bar to establish an equipotential bonding point.
Note: The equipotential bonding cable is not provided with our product. If needed,
please purchase it.
Use Lightning Arrester
Power lightning arrester and signal lightning arrester are used for lighting protection.
Power lightning arrester is used for limiting the voltage surge due to a lightning. If
an outdoor AC power cord should be directly connected to the device, please use a
power lightning arrester.
Note: Power lightning arrester is not provided with our product. If needed, please
purchase it.
Signal lightning arrester is used to protect RJ45 ports of the device from lightning.
When cabling outdoors, please install a signal lightning arrester before connecting
the cable to the device.
When purchasing or using a signal lightning arrester, please observe the following
rules:
■The port rate of the signal lightning arrester should match the rate of the desired
port on the device. If it is not matched, this signal lighting arrester will not work.
Purchase a standard lightning arrester.
■Install signal lightning arrester near the protected device and connect it to the
ground via a shorter ground cable.
Figure 3-3 Lightning Arrester Connection
Ethernet CableEquipotential Bonding CableGrounding Terminal
Signal Lightning Arrester Device
Note: Signal lightning arrester is not provided with our product. If needed, please
purchase it.

12
L2 Managed Switch
Connection
Chapter 4 Connection
4.1 Ethernet Port
Connect the Ethernet ports of the switch to the network devices by RJ45 cable as
the following figure shows.
Figure 4-1 Connecting the RJ45 Port
RJ45 Cable
RJ45 Port
4.2 SFP Port
Connect the SFP port to an SFP module. For the switch, if an SFP transceiver
(purchased separately) is installed in a slot and has a valid link on the port, the
associated RJ45 port will be disabled and cannot be used.
Figure 4-2 Inserting the SFP Module
SFP Port
4.3 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.
Connect the console port of the device with your computer by the console cable as
the following figure shows.

13
L2 Managed Switch
Connection
Figure 4-3 Connecting the Console Port
You can also manage the device through the console port, for details please refer to
the CLI Reference Guide on the resource CD.
Note:
■The console port is the first port on the left of the front panel.
■Please keep the device power off when plugging the console cable.
■Do not connect the console port with other ports by RJ45 cable.
4.4 Verify Installation
After completing the installation, please verify the following items:
■There are 5–10cm of clearance around the sides of the device for ventilation and
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.
4.5 Power On
Plug the female connector of the provided power cord into the power socket of the
device, and the male connector into a power outlet as the following figure shows.
Figure 4-4 Connecting to Power Supply
1
2

14
L2 Managed Switch
Connection
Note: The gure is to illustrate the application and principle. The power cord you get
from the package and the socket in your situation will comply with the regulation in
your country, so they may dier from the gure above.
4.6 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 as follows:
■The Power LED indicator will light on all the time.
■After keeping off for several seconds, the LED indicators of all the ports will flash
momentarily and then turn off again after the initialization.
■The System LED indicator will flash, which represents a successful initialization.

15
L2 Managed Switch
Conguration
Chapter 5 Conguration
5.1 Congure the Switch via GUI
Note: To log on to the GUI of the switch, the IP address of your PC should be set in
the same subnet addresses of the switch. The IP address is 192.168.0.x ("x" is any
number from 2 to 254), Subnet Mask is 255.255.255.0.
1. To access the GUI of the switch, open a web browser and type in the default
management address http://192.168.0.1 in the address field of the browser, then
press the Enter key.
Figure 5-1 Web Browser
2. Enter admin for the default User Name and Password, both in lower case letters.
Then click the Login button or press the Enter key.
Figure 5-2 Login
3. After a successful login, the main page will appear as the following figure, and
you can configure the function by clicking the setup menu on the left side of the
screen.

16
L2 Managed Switch
Conguration
Figure 5-3 Main Page of the Switch
5.2 Congure the Switch Using CLI
You can log on to the switch and access the CLI by the following two methods:
■Log on to the switch by the console port on the switch.
■Log on to the switch remotely by a Telnet or SSH connection through an Ethernet
port.
■Logon by a Console Port
To log on to the switch by the console port on the switch, please take the following
steps:
1. Connect the PCs or Terminals to the console port on the switch by a provided
cable. Refer to 4.3 Console Port to learn how to connect.
2. If you attach a PC, start the terminal emulation program (such as the
Hyperterminal) on the PC.
3. Specify the connection COM port in the terminal emulation program.
4. Configure the terminal emulation program or the terminal to use the following
settings:
■Baud rate: 38400 bps
■Data bits: 8
■Parity: none
■Stop bits: 1
■Flow control: none
5. The DOS prompt ”T2500-28TC>” will appear after pressing the Enter button as
Figure 5-4 shows. It indicates that you can use the CLI now.