TP-Link TL-SM5110-LR 10GBase-LR SFP+ LC Transceiver Price in Kenya

The TP-Link TL-SM5110-LR is a high-performance 10GBASE-LR SFP+ single-mode fibre transceiver designed for long-distance 10 Gigabit Ethernet connections between compatible switches, routers, servers and other network equipment.

It operates at 1310nm, supports 10Gbps full-duplex Ethernet, uses 9/125µm single-mode fibre, and provides transmission distances of up to 10 kilometres. The module uses an LC duplex fibre interface and is intended for equipment fitted with compatible 10G SFP+ ports. 

TP-Link also specifies Digital Diagnostic Monitoring (DDM), SFP+ MSA support and hot-swappable operation, making the TL-SM5110-LR suitable for enterprise backbones, ISP networks, data centres, campus links and building-to-building 10G connections. 

TP-Link TL-SM5110-LR Specifications

TP-Link's official product page confirms 1310nm operation, 9/125µm single-mode fibre, 10km maximum cable length, 10Gbps data rate, LC duplex connectivity, DDM, SFP-MSA and hot-swappable operation. 

What Is the TP-Link TL-SM5110-LR?

The TL-SM5110-LR is an optical transceiver that plugs into a compatible:

10G SFP+ port

and converts the electrical 10Gbps interface of a network device into an optical signal suitable for transmission over single-mode fibre.

A typical installation is:

10G Switch → TL-SM5110-LR → Duplex Single-Mode Fibre → TL-SM5110-LR → 10G Switch

It is intended for networks that need more distance than short-range multimode 10GBASE-SR optics can normally provide.

What Does 10GBASE-LR Mean?

10GBASE-LR can be understood as:

10G = 10 Gigabit Ethernet
BASE = Baseband Ethernet
LR = Long Reach

The TL-SM5110-LR is therefore designed for longer 10Gbps optical connections over single-mode fibre.

TP-Link identifies the product specifically as a 10GBASE-LR 1310nm single-mode SFP+ transceiver. 

10Gbps Ethernet Speed

The TL-SM5110-LR supports:

10 Gigabits per second

of Ethernet connectivity.

This gives significantly more backbone capacity than standard Gigabit SFP modules.

Typical applications include:

• Core switch uplinks

• Distribution networks

• ISP aggregation

• Data centre connections

• Enterprise backbones

• Campus fibre

• Server interconnection

• High-capacity CCTV networks

• Building-to-building links

1310nm Wavelength

The TL-SM5110-LR operates at:

1310nm

over single-mode fibre. 

1310nm is commonly used for longer-distance Ethernet transmission over 9/125µm single-mode fibre.

Single-Mode Fibre Support

The module is designed for:

9/125µm Single-Mode Fibre

rather than multimode fibre. 

Single-mode fibre provides lower attenuation and much longer transmission distances than multimode fibre, making it appropriate for 10km-class Ethernet links.

Up to 10KM Transmission Distance

TP-Link specifies a maximum cable distance of:

10 kilometres

using suitable 9/125µm single-mode fibre. 

Actual achievable distance depends on the entire optical link budget.

Factors include:

• Fibre attenuation

• Number of splices

• Connector losses

• Patch cords

• Fibre bends

• Connector cleanliness

• Installed cable condition

• Engineering margin

10KM in Metres

The rated distance is approximately:

10,000 metres

which makes the TL-SM5110-LR suitable for connections far beyond the 100m limitation of copper Ethernet and beyond the typical reach of multimode 10GBASE-SR optics.

LC Duplex Connector

The TL-SM5110-LR uses:

LC Duplex

connectivity. 

An LC duplex interface uses two fibre strands:

Tx → Transmit

and

Rx → Receive

A typical patch cord is therefore:

LC-LC Duplex Single-Mode OS2 Fibre Patch Cord

How Many Fibre Strands Does TL-SM5110-LR Use?

A standard TL-SM5110-LR connection uses:

2 fibre cores

One fibre carries transmission in one direction while the second fibre carries traffic in the opposite direction.

This differs from a BiDi SFP+, where two complementary wavelengths can share a single fibre strand.

Watch TP-Link TL-SM5110-LR Video

https://youtu.be/hBDVmeeC53I

The TP-Link TL-SM5110-LR is designed for networks that need both high bandwidth and extended fibre distance. Its 10Gbps capacity makes it suitable for core and distribution links where traditional 1Gbps uplinks may become a bottleneck.

Unlike the TL-SM5110-SR, which is intended for short-range multimode connections, the LR version operates over 9/125µm single-mode fibre and extends Ethernet connectivity up to approximately 10km. This makes it useful for linking buildings, campuses, ISP facilities and geographically separated network points. 

The module also supports DDM and hot-swappable installation, allowing compatible network equipment to monitor optical parameters while making transceiver replacement or network expansion easier. 

Digital Diagnostic Monitoring – DDM

The TL-SM5110-LR supports:

Digital Diagnostic Monitoring

or:

DDM

TP-Link confirms DDM support on both the TL-SM5110-LR and newer SM5110-LR versions. 

Depending on the host equipment, DDM may provide monitoring of:

• Tx optical power

• Rx optical power

• Module temperature

• Supply voltage

• Laser bias current

Why DDM Is Important

DDM can help technicians diagnose fibre link problems without immediately disconnecting the network.

For example, unusually low received power can indicate:

• Dirty LC connectors

• Poor fusion splices

• Excessive fibre attenuation

• Damaged patch cords

• Fibre bends

• Faulty adapters

• Long-distance optical loss

SFP+ MSA Compatibility

The TL-SM5110-LR supports:

SFP+ MSA

or the:

10G Small Form Pluggable Multi-Source Agreement

TP-Link confirms SFP+ MSA compatibility. 

This standard helps define the mechanical and electrical characteristics of the module.

However, SFP+ MSA compliance does not guarantee that every switch from every manufacturer will accept every third-party module.

Always check the exact host equipment.

Hot-Swappable Design

The TL-SM5110-LR is:

Hot Swappable

which means it can be inserted or removed from supported SFP+ equipment without replacing the entire switch or router. 

This is useful for:

• Network expansion

• Failed module replacement

• Maintenance

• Fibre migration

• Port reconfiguration

Full-Duplex 10G Ethernet

TP-Link states that the TL-SM5110-LR supports:

Full-duplex 10G Ethernet

over single-mode fibre.

Full duplex allows transmission and reception to occur simultaneously.

TP-Link TL-SM5110-LR Switch Compatibility

TP-Link lists the transceiver as suitable for switches with compatible:

10G SFP+ ports

and gives examples including:

SG3428X / TL-SG3428X

and:

TL-SG3428XMP. 

The exact switch model and firmware should still be checked before deploying a large quantity of modules.

TL-SM5110-LR with Omada Switches

The module is suitable for compatible TP-Link Omada switches equipped with 10G SFP+ uplink ports.

Typical topology:

Omada Access Switch
↓
10G SFP+ Port
↓
TL-SM5110-LR
↓
OS2 Duplex Fibre
↓
TL-SM5110-LR
↓
Core Switch

This configuration can provide a high-capacity fibre backbone.

TL-SM5110-LR for Switch-to-Switch Connections

One of the most common applications is connecting two switches.

Example:

Distribution Switch
↓
TL-SM5110-LR
↓
Single-Mode Fibre
↓
TL-SM5110-LR
↓
Core Switch

This can provide a dedicated 10Gbps uplink across a campus or between buildings.

TL-SM5110-LR for Building-to-Building Fibre

The 10km maximum reach makes the module useful for connecting buildings separated by substantial distances.

Suitable applications include:

• Business parks

• Universities

• Hospitals

• Hotels

• Industrial facilities

• Government compounds

• Warehouses

• Large residential estates

TL-SM5110-LR for ISP Networks

ISPs can use 10G LR optics for:

• POP-to-POP connections

• Distribution uplinks

• Network aggregation

• Data centre links

• Enterprise customer circuits

• Metro fibre

• High-capacity backbone connections

A 10Gbps connection can carry significantly more traffic than a standard 1Gbps optical link.

TL-SM5110-LR for Data Centres

The module can be used for longer fibre runs within or between data centre environments.

Potential uses include:

• Core-to-distribution switches

• Server aggregation

• Storage infrastructure

• Rack-to-rack networking

• Inter-building data centre links

For very short rack connections, a DAC cable or SR module may sometimes be more economical.

TL-SM5110-LR for Servers

A server fitted with a compatible 10G SFP+ network interface can use the TL-SM5110-LR for long-distance optical networking.

Typical layout:

Server 10G NIC → TL-SM5110-LR → OS2 Fibre → TL-SM5110-LR → Network Switch

TL-SM5110-LR for CCTV Networks

Large IP CCTV networks can generate substantial aggregated traffic.

A 10G backbone may be appropriate where multiple PoE switches and high-resolution cameras feed into:

• Core switches

• NVR servers

• Video management systems

• Central monitoring centres

The TL-SM5110-LR can carry this aggregated traffic across long single-mode fibre routes.

TL-SM5110-LR for Campus Networks

The module is suitable for linking buildings within large campuses.

Examples include:

• Universities

• Colleges

• Schools

• Hospitals

• Industrial campuses

• Research facilities

• Government institutions

TL-SM5110-LR vs TL-SM5110-SR

This is one of the most important comparisons.

The LR model is therefore the better choice when the fibre route extends beyond the practical range of multimode SR optics. 

TL-SM5110-LR vs TL-SM311LS

TL-SM5110-LR vs TL-SM311LM

TL-SM5110-LR vs 10G BiDi SFP+

TP-Link also offers 10G BiDi models such as the SM5110LSA-10 and SM5110LSB-10 for 10km single-fibre links. 

TL-SM5110-LR vs 10GBASE-T RJ45 SFP+

TL-SM5110-LR vs Direct Attach Cable

A DAC cable is usually better for very short equipment-to-equipment links within the same rack or nearby racks.

The TL-SM5110-LR becomes more useful when:

• Distance is significantly longer

• Fibre is already installed

• Electrical isolation is required

• Buildings need to be connected

Is TL-SM5110-LR SFP or SFP+?

It is:

SFP+

rather than a standard 1G SFP.

SFP+ is commonly used for:

10 Gigabit Ethernet

while standard SFP modules are commonly used for:

1 Gigabit Ethernet.

Can TL-SM5110-LR Work in a 1G SFP Port?

No, not for its intended 10Gbps operation.

The host equipment should provide a compatible:

10G SFP+ port

for TL-SM5110-LR.

Can It Work in a 25G SFP28 Port?

Some SFP28 ports may support 10G SFP+ modules, while others may not.

This depends on the host equipment.

Check the switch or network card documentation before installation.

OS2 Fibre for TL-SM5110-LR

For modern deployments, OS2 9/125µm single-mode fibre is commonly used for 10GBASE-LR.

A typical patch cord would be:

LC-LC Duplex OS2 Single-Mode Patch Cord

Ensure connector polish and termination type match the rest of the fibre infrastructure.

Can It Use OS1 Fibre?

Existing OS1 single-mode fibre may support the module depending on:

• Distance

• Cable condition

• Attenuation

• Connector loss

• Network design

For new long-distance installations, OS2 is commonly preferred.

Optical Link Budget

A 10km rating does not mean every physical 10km route will automatically operate correctly.

Total optical loss includes:

Fibre attenuation + Splice loss + Connector loss + Patch cord loss + Engineering margin

For critical links, optical power should be measured and the installed fibre tested.

Fibre Attenuation

Single-mode fibre introduces optical loss over distance.

Additional losses occur at:

• Connectors

• Adapters

• Fusion splices

• Mechanical splices

• Fibre bends

• Patch panels

A poorly installed 5km link can sometimes have more loss than a well-installed longer link.

Fibre Connector Cleaning

LC connectors should be cleaned before insertion.

Dirty fibre connectors are one of the most common causes of optical network problems.

Possible symptoms include:

• Low Rx power

• Link instability

• High error rates

• Link failure

• Intermittent connectivity

Testing a TL-SM5110-LR Link

Optical Power Meter

An Optical Power Meter can measure the optical power reaching the receiver.

OTDR

An OTDR can identify:

• Total cable length

• Fibre breaks

• High-loss splices

• Connector reflections

• Fibre bends

• Attenuation events

VFL

A Visual Fault Locator can assist with basic fibre identification and continuity testing, although it does not replace proper 10G optical testing.

3.3V Power Supply

The TL-SM5110-LR uses:

3.3V

from the SFP+ host device. 

No separate power adapter is required for the module.

Operating Temperature

TP-Link specifies:

0°C to 70°C

for normal operation. 

Storage Temperature

The specified storage range is:

-40°C to 85°C. 

Operating Humidity

TP-Link specifies:

10% to 90% RH, non-condensing

during operation. 

TL-SM5110-LR Dimensions

The module measures approximately:

56.7 × 13.9 × 10.35mm. 

Package Contents

TP-Link lists:

1 × TL-SM5110-LR 10G SFP+ Module

and:

Installation Guide. 

TP-Link TL-SM5110-LR Price in Kenya

The TP-Link TL-SM5110-LR price in Kenya varies according to supplier, stock, product revision, VAT and quantity.

A current Senetic Kenya listing shows approximately:

KES 5,143.72 excluding VAT

and:

KES 5,966.72 including VAT

for the TL-SM5110-LR. 

The newer SM5110-LR listing on the same supplier page is approximately:

KES 5,047.84 excluding VAT

or:

KES 5,855.49 including VAT. 

Approximate TL-SM5110-LR Prices in Kenya

These are third-party market references and not fixed Fiber Optics Kenya prices. Prices and availability can change. 

Contact Fiber Optics Kenya for the current TP-Link TL-SM5110-LR price and stock availability.

What Affects TL-SM5110-LR Price in Kenya?

Pricing may vary according to:

• Supplier

• Hardware revision

• VAT

• Warranty

• Import costs

• Stock availability

• Quantity ordered

• Enterprise or ISP bulk pricing

How to Choose the Correct 10G Transceiver

Before purchasing the TL-SM5110-LR, confirm:

1. Your equipment has a compatible 10G SFP+ port.

2. The required speed is 10Gbps.

3. The installed cable is 9/125µm single-mode fibre.

4. The route is within approximately 10km.

5. You have two fibre cores available.

6. The connector interface is LC duplex.

7. Your switch accepts the TP-Link transceiver.

8. The fibre link remains within the optical power budget.

9. DDM is supported if diagnostic monitoring is required.

Recommended Accessories

Frequently Asked Questions About TP-Link TL-SM5110-LR

What is the TP-Link TL-SM5110-LR?

It is a 10GBASE-LR 1310nm single-mode SFP+ optical transceiver designed for 10Gbps links up to 10km. 

What speed does TL-SM5110-LR support?

10Gbps. 

Is TL-SM5110-LR a 10G module?

Yes.

Is it SFP+?

Yes.

Is it a normal 1G SFP?

No.

What Ethernet standard does it use?

10GBASE-LR / IEEE 802.3ae.

What wavelength does it use?

1310nm. 

Is TL-SM5110-LR single mode?

Yes.

What fibre size does it require?

9/125µm single-mode fibre. 

Can I use OS2 fibre?

Yes. OS2 9/125µm single-mode fibre is a suitable choice for this type of long-distance link.

Can I use multimode fibre?

It is designed for single-mode fibre. Use TL-SM5110-SR for appropriate multimode 10G installations.

What is the maximum transmission distance?

Up to 10km.

Can it work over 1km?

Yes, provided the optical link remains within specification.

Can it work over 5km?

Yes, subject to total optical loss.

Can it work over 10km?

Yes, up to the manufacturer's rated 10km distance. 

Can it work over 20km?

Not as specified. Use an appropriately rated 20km 10G transceiver.

Can it work over 40km?

No. Use a suitable 40km 10G optical module.

What connector does it use?

LC Duplex. 

Does it need two fibre strands?

Yes.

Is it BiDi?

No. TL-SM5110-LR uses conventional duplex fibre.

Can it work over one fibre core?

Not in its standard configuration. Use a compatible 10G BiDi pair if only one fibre core is available.

Does it support DDM?

Yes. 

What is DDM?

Digital Diagnostic Monitoring.

Can DDM show optical power?

On compatible equipment, DDM can provide transmit and receive optical diagnostic information.

Does it support SFP+ MSA?

Yes. 

Is it hot-swappable?

Yes. 

What voltage does it use?

3.3V. 

Does it support full duplex?

Yes. TP-Link describes full-duplex 10G Ethernet operation. 

Can it connect two switches?

Yes.

Can it connect two buildings?

Yes, provided the fibre link remains within specification.

Is it suitable for ISP networks?

Yes.

Is it suitable for data centres?

Yes.

Is it suitable for campus networks?

Yes.

Is it suitable for CCTV?

Yes, particularly for high-capacity backbone links.

Is it suitable for enterprise networks?

Yes.

Can it connect servers?

Yes, provided the server interface is compatible with 10G SFP+.

Does it work with TP-Link switches?

Yes, with compatible 10G SFP+ TP-Link switches. 

Does it work with TL-SG3428X?

TP-Link specifically lists the SG3428X/TL-SG3428X family as an example of compatible equipment. 

Does it work with TL-SG3428XMP?

Yes, TP-Link lists this model as an example. 

Can it work with another brand of switch?

Potentially, if the host accepts standards-compliant 10G SFP+ modules. Verify exact compatibility first.

What is the difference between TL-SM5110-LR and TL-SM5110-SR?

TL-SM5110-LR uses 1310nm single-mode fibre for up to 10km, while TL-SM5110-SR uses 850nm multimode fibre for up to approximately 300m. 

Which is better for long distance: SR or LR?

LR.

Which is better for a short data centre link?

SR or a compatible DAC may be more economical depending on the installation.

Can I use TL-SM5110-LR instead of TL-SM5110-SR?

Only if the installed fibre and network design are suitable for single-mode LR optics.

Is TL-SM5110-LR the same as TL-SM311LS?

No. TL-SM5110-LR is a 10Gbps SFP+, while TL-SM311LS is a Gigabit SFP.

Is TL-SM5110-LR the same as a 10G BiDi SFP+?

No. LR uses two fibre strands, while BiDi normally uses one.

Does TP-Link have a 10km 10G BiDi module?

Yes. TP-Link lists SM5110LSA-10 and SM5110LSB-10 as complementary 10GBASE-BX single-mode modules for 10km links.

Can I insert TL-SM5110-LR into a 1G SFP port?

No, not for 10Gbps operation.

Can I use it in an SFP28 port?

Possibly if the host supports 10G SFP+ operation. Check the switch documentation.

Is 10G faster than 1G?

Yes. A 10Gbps Ethernet link has ten times the nominal bandwidth of a 1Gbps Ethernet link.

Does it require an external power supply?

No.

What is the operating temperature?

0°C to 70°C. 

What is the storage temperature?

-40°C to 85°C. 

What are its dimensions?

Approximately 56.7 × 13.9 × 10.35mm.

What comes in the package?

The module and installation guide. 

Do I normally need two modules?

Yes. A normal duplex point-to-point fibre link requires a compatible transceiver at both ends.

Can dirty fibre affect the connection?

Yes.

Should LC connectors be cleaned?

Yes.

Can an Optical Power Meter test the link?

Yes.

Can an OTDR test the fibre?

Yes.

Can a VFL test the fibre?

A VFL can assist with basic continuity and fibre identification but does not replace proper optical testing.

What is the TP-Link TL-SM5110-LR price in Kenya?

A current market example is approximately KES 5,144 excluding VAT or KES 5,967 including VAT. 

What is the newer SM5110-LR price in Kenya?

A current listing shows approximately KES 5,048 excluding VAT or KES 5,855 including VAT. 

Is that Fiber Optics Kenya's exact selling price?

No. These are third-party market references. Contact Fiber Optics Kenya for the current quote.

Do you supply LC-LC OS2 patch cords?

Yes.

Do you supply single-mode fibre cable?

Yes.

Do you supply 10G SFP+ modules?

Yes.

Do you supply 10G BiDi SFP+ modules?

Yes, subject to availability.

Do you supply 20KM and 40KM 10G modules?

Yes, subject to stock.

Do you supply Optical Power Meters?

Yes.

Do you supply OTDRs?

Yes.

Can enterprises and ISPs order in bulk?

Yes. Bulk orders are suitable for ISPs, enterprises, data centres, CCTV integrators, fibre contractors and campus deployments.

Do you deliver outside Nairobi?

Yes. Fiber Optics Kenya supplies fibre optic and networking equipment throughout Kenya.

Why Buy TP-Link TL-SM5110-LR from Fiber Optics Kenya?

Contact Fiber Optics Kenya

Fiber Optics Kenya
Lyric House, 7th Floor Room S9
Kimathi Street, Nairobi

Phone: +254 704 991 492
Email: info@fibreopticskenya.co.ke

The TP-Link TL-SM5110-LR 10GBase-LR SFP+ LC Transceiver is designed for high-capacity 10 Gigabit Ethernet over single-mode fibre. It operates at 1310nm, supports 9/125µm fibre, LC duplex connectivity, DDM, SFP+ MSA and hot-swappable operation, and provides transmission distances of up to 10 kilometres.

Compared with the TL-SM5110-SR, the LR version is optimized for much longer fibre routes, making it suitable for ISP backbones, enterprise networks, campuses, building-to-building connections, data centres and high-capacity CCTV infrastructure. 

Current Kenyan market references are approximately KES 5,144 excluding VAT / KES 5,967 including VAT for TL-SM5110-LR, while the newer SM5110-LR is listed around KES 5,048 excluding VAT / KES 5,855 including VAT. 

Contact Fiber Optics Kenya for the current TP-Link TL-SM5110-LR price in Kenya, 10G SFP+ modules, OS2 LC duplex patch cords, single-mode fibre, 10G BiDi modules, optical testing equipment, bulk orders and nationwide delivery.