TP-Link SafeStream TL-ER5120 User manual

Business Networking Solution
Installation Guide
Gigabit Business Router
TL-ER5120/TL-ER6120

About this Installation Guide
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 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 illustrates how to log in and set up the router.
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 http://www.tp-link.com.
• 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.
Related Document
This Installation Guide is also available in PDF on our website. To obtain the latest
documentation and product information, please visit the official website:
http://www.tp-link.com

Contents
Chapter 1 Introduction ——————————— 01
1.1 Product Overview ...........................................................01
1.2 Appearance.......................................................................01
Chapter 2 Installation———————————— 04
2.1 Package Contents ..........................................................04
2.2 Safety Precautions .........................................................04
2.3 Installation Tools..............................................................06
2.4 Product Installation ........................................................07
Chapter 3 Lightning Protection ——————— 09
3.1 Cabling Reasonably........................................................09
3.2 Connect to Ground.........................................................11
3.3 Equipotential Bonding...................................................12
3.4 Use Lightning Arrester..................................................13
Chapter 4 Connection ——————————— 15
4.1 WAN Port............................................................................15
4.2 LAN Port .............................................................................15
4.3 Verify Installation ...........................................................15
4.4 Power On............................................................................13
4.5 Initialization........................................................................14
Chapter 5 Conguration —————————— 17
5.1 Preparations......................................................................17
5.2 Login ....................................................................................17
Appendix A Troubleshooting ———————— 19
Appendix B Hardware Specications ————— 20

01
Gigabit Business Router
Introduction
Chapter 1 Introduction
1.1 Product Overview
The Gigabit Business Router TL-ER5120/TL-ER6120 providing three adjustable gigabit
ports, which enable the users to configure the amount of WAN ports based on need
and connect multiple Internet lines for bandwidth expansion. The router possesses
excellent data processing capability and multiple powerful functions including IPsec/
PPTP/L2TP VPN (TL-ER6120), Load Balance, Access Control, Bandwidth Control,
Session Limit, IM/P2P Blocking, 802.1Q VLAN and so on, which consumedly meet the
needs of small and medium enterprise, hotels and communities with volumes of users
demanding a efficient and easy-to-manage network with high security.
1.2 Appearance
■Front Panel
The front panel of TL-ER5120 is shown as the following figure.
Figure 1-1 Front Panel of TL-ER5120
LEDs
LED Status Indication
PWR On The router is powered on
Off The router is powered off or power supply is abnormal
SYS Flashing The router works properly
On/Off The router works improperly
Speed
On (Green) The port is running at 1000Mbps
On (Yellow) The port is running at 100Mbps
Off There is no device linked to the corresponding port or
the port is running at 10Mbps
WAN On The port is working in WAN mode
Off The port is working in LAN mode

02
Gigabit Business Router
Introduction
Interface Description
Interface Description
WAN The WAN port is designed to connect the router to a DSL/Cable
modem or Ethernet by the RJ45 cable
LAN The LAN port is designed to connect the router to the local PCs or
switches by the RJ45 cable
Reset
Use the button to restore the router to the factory defaults. With the router powered
on, use a pin to press and hold the Reset button (about 4~5 seconds). After the
SYS LED goes out, release the Reset button. If the SYS LED is flashing with a high
frequency about two or three seconds, it means the router is restored successfully.
The front panel of TL-ER6120 is shown as the following figure.
Figure 1-2 Front Panel of TL-ER6120
LEDs
LED Status Indication
PWR On The Router is powered on
Off The Router is powered off or power supply is abnormal
SYS Flashing The Router works properly
On/Off The Router works improperly
Speed
On (Green) The port is running at 1000Mbps
On (Yellow) The port is running at 100Mbps
Off There is no device linked to the corresponding port or the
port is running at 10Mbps
WAN On The port is working in WAN mode
Off The port is working in LAN mode

03
Gigabit Business Router
Introduction
Interface Description
Interface Description
WAN The WAN port is designed to connect the router to a DSL/Cable modem
or Ethernet by the RJ45 cable
LAN The LAN port is designed to connect the router to the local PCs or
switches by the RJ45 cable
Reset
Use the button to restore the router to the factory defaults. With the router powered
on, use a pin to press and hold the Reset button (about 4~5 seconds). After the
SYS LED goes out, release the Reset button. If the SYS LED is flashing with a high
frequency about two or three seconds, it means the router is restored successfully.
■Rear Panel
The rear panel of TL-ER5120/TL-ER6120 is shown as the following figure.
Figure 1-3 Rear Panel
100-240V~ 50/60Hz 0.2A
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).
Grounding Terminal
The router already comes with lightning protection mechanism. You can also ground
the router through the PE (Protecting Earth) cable of AC cord or with Ground Cable.
For detailed information, please refer to Chapter 3 Lightning Protection.
Kensington
The kensington lock port is used to connect to a kensington lock to secure your
router.
Caution:
Please use the provided power cord.

04
Gigabit Business Router
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 Router One Power Cord This Installation Guide
Two mounting brackets and the
ttings
Installation Guide
BusinessNetworking Solution
Gigabit Business Router
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 router.
■Make sure that the supply voltage matches the specifications indicated on the rear
panel of the router.
■Ensure the vent hole is well ventilated and unblocked.
■Do not open or remove the cover of the router.
■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.

05
Gigabit Business Router
Installation
Temperature/Humidity
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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 router 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 router, 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.

06
Gigabit Business Router
Installation
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 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