Long-distance single-fibre connectivity
MikroTik S-4554LC80D in Dubai, UAE
The MikroTik S-4554LC80D is a paired 1.25G SFP solution for organisations that need to carry a Gigabit-class optical link over a single strand of single-mode fibre across distances of up to 80 km. It combines complementary wavelengths, industrial temperature tolerance and Digital Diagnostic Monitoring in a practical two-module kit.
Before requesting a quotation
Share the two endpoint device models, fibre route length, connector type, required quantity and deployment location.
FourTeck can help review the optical link requirements and identify related patch leads, fibre termination or configuration services.
Designed for Gigabit-class SFP links.
Subject to the complete optical budget.
Single LC UPC connectors on paired wavelengths.
Tested from -40°C to +85°C.
Direct answer for buyers
The MikroTik S-4554LC80D is a pair of bidirectional single-mode SFP transceivers for building a point-to-point optical connection over one fibre strand. It is mainly used when two network devices with suitable SFP or SFP+ cages must be linked over a long route and fibre availability is limited. Service providers, industrial operators, campuses, transport sites, utilities and multi-building organisations may consider it. Before proceeding, confirm that both endpoint devices support 1.25G SFP modules, that the installed fibre is single-mode with Single LC UPC connectivity, that the attenuation and splice losses remain within the link budget, and that the correct module from the pair is fitted at each end.
What this SFP pair does
A conventional dual-fibre optical link usually uses one fibre for transmit and another for receive. The S-4554LC80D uses wavelength division on a single fibre strand. One module transmits at 1490 nm and receives at 1550 nm, while its partner transmits at 1550 nm and receives at 1490 nm. Because the wavelength directions complement each other, the modules operate as a pair.
This design can conserve fibre capacity where only one dark fibre strand is available between sites. It can also simplify route planning for remote cabinets, towers or facilities that cannot easily allocate two strands. The module pair does not replace the need for proper optical engineering. Connector loss, splice count, fibre type, cleanliness, bends and overall distance all influence whether the link will operate with a healthy margin.
Who should consider it
The product is relevant to network teams planning a dedicated point-to-point optical path between compatible routers, switches or outdoor aggregation devices. It may suit internet service provider backhaul, branch-to-core connectivity, industrial networks, remote surveillance aggregation, utility communications, campus interconnection and infrastructure links across large sites.
It is not automatically the right choice for every fibre route. Buyers needing 10G throughput should select an appropriate SFP+ solution instead. Buyers using multimode fibre require a different optical module. Projects with APC connectors, passive optical network splitters or unknown fibre characteristics require additional review. A site survey or optical power test may be appropriate where the route documentation is incomplete.
Business challenges the S-4554LC80D can help address
Limited fibre strands
A single-strand bidirectional design can support a two-way link without reserving a separate transmit and receive fibre. This can be valuable on routes where existing cable capacity is constrained.
Remote site distance
The specified reach of up to 80 km supports long paths that exceed the range of common short-reach optics, provided the optical loss budget and endpoint conditions are suitable.
Harsh temperature exposure
Industrial temperature testing from -40°C to +85°C makes the pair relevant to controlled outdoor enclosures, roadside cabinets and industrial spaces, subject to the host device and enclosure ratings.
Operational visibility
Digital Diagnostic Monitoring can expose supported optical parameters through compatible equipment, helping technicians assess receive levels, temperature and other module conditions during commissioning or troubleshooting.
Product-fit decision matrix
| Requirement | Suitable when | Confirm before ordering |
|---|---|---|
| Long-distance Gigabit-class link | The route requires 1.25G SFP optics over single-mode fibre. | Actual route length, attenuation and required safety margin. |
| One available fibre strand | A simplex LC bidirectional pair is appropriate. | Connector polish, patch-panel path and strand continuity. |
| MikroTik endpoint devices | Both devices have compatible SFP or SFP+ cages operating at 1.25G. | Exact router or switch models and RouterOS interface settings. |
| Outdoor or industrial cabinet | The complete installation supports the environmental conditions. | Host temperature rating, enclosure sealing, power and ventilation. |
| Higher-speed backbone | Not suitable when the required line rate is 10G or above. | Select an SFP+ or higher-speed optical platform. |
Verified technical information
| Brand | MikroTik |
|---|---|
| Product code | S-4554LC80D |
| Product type | Matched pair of bidirectional SFP transceiver modules |
| Included modules | One S-45LC80D and one S-54LC80D |
| Data rate | 1.25G |
| Maximum stated distance | 80 km, dependent on the optical path and link budget |
| Fibre mode | Single-mode |
| Connector | Single LC UPC |
| Wavelength pairing | 1490 nm / 1550 nm complementary transmit and receive wavelengths |
| Monitoring | Digital Diagnostic Monitoring |
| Tested ambient temperature | -40°C to +85°C |
| Host compatibility | MikroTik products with suitable SFP or SFP+ cages; exact host model and speed support should be confirmed |
| Availability | Contact FourTeck for current UAE quantity, lead time and quotation options |
Compatibility and optical-budget notice
An 80 km distance rating should not be interpreted as a guarantee that every 80 km route will establish a stable link. Optical performance depends on fibre attenuation, connector insertion loss, patch panels, splices, bends, ageing, contamination and engineering margin. Long-reach optics may also produce excessive receive power on very short routes, so attenuation requirements should be assessed rather than assumed.
Confirm that the host interfaces can operate a 1.25G SFP module and that automatic negotiation or interface speed settings are correct. The two modules are directional partners; the S-45LC80D belongs at one end and the S-54LC80D at the other. Substituting two identical wavelength modules will not create the intended bidirectional link. Fibre technicians should label both ends clearly and record the module orientation in the handover documentation.
A practical purchase and deployment journey
Document the route
Record endpoint locations, approximate distance, fibre type, strand availability, patch panels, connector polish and known splice points.
Check endpoint hardware
Confirm the exact MikroTik or third-party device models, cage types, supported line rate and any interface configuration requirements.
Calculate the loss budget
Include fibre attenuation, connectors, splices, patch leads and reserve margin. Test the installed path when records are uncertain.
Confirm the bill of materials
Include the SFP pair, simplex LC UPC patch leads, adapters, cleaning tools, enclosures and any installation services required.
Install and test
Fit the paired modules at the correct ends, clean all connectors, configure interfaces and verify optical readings, errors and traffic stability.
Single-strand fibre efficiency
The most distinctive operational value of the S-4554LC80D is its ability to carry transmit and receive traffic over one single-mode fibre strand. In locations where fibre cores are scarce, leasing or installing an additional strand may be expensive or operationally difficult. A bidirectional pair can preserve the second strand for another circuit, a redundant path or future expansion.
This advantage is especially relevant when a legacy route was built with limited fibre counts, when civil work is disruptive, or when an organisation must connect a remote location without replacing the existing cable. The saving is not automatic, because the route still requires compatible connectors and acceptable loss. The design also depends on using the two complementary modules together. Network documentation should clearly identify the wavelength direction at each endpoint so later maintenance teams do not accidentally swap the pair.
Buyers should compare the value of single-strand operation with their resilience goals. A single strand creates one physical path; it does not provide route redundancy. Where business continuity is critical, consider a second diverse fibre route, wireless backup, protected ring design or another failover method. FourTeck can help frame the product within the wider topology rather than treating the optic as a complete resilience solution.
Long-reach planning and optical margin
The stated 80 km reach makes this pair relevant for inter-building and metropolitan paths that are beyond standard short-reach transceiver limits. Distance alone, however, is not the final selection criterion. Optical engineering is based on total loss. Two routes of equal length can perform differently because one may contain many fusion splices, patch panels and older cable while the other is a cleaner direct path.
A responsible design starts with the transmitter and receiver characteristics, then subtracts fibre attenuation, connector loss, splice loss and a maintenance margin. Environmental effects and ageing should also be considered. Where an optical time-domain reflectometer report is available, it can help identify unexpected events or poor sections. A calibrated optical power meter can confirm receive levels during commissioning.
Very short paths deserve attention too. Long-reach optics can deliver higher launch power than short-reach modules. If the receive level exceeds the supported range, an optical attenuator may be needed. This should be determined from the actual module data and test results rather than guessed. FourTeck can coordinate product selection and installation-scope discussions, while the customer or fibre contractor should provide route details needed for a reliable design.
Monitoring, commissioning and fault isolation
Digital Diagnostic Monitoring gives compatible network equipment access to useful transceiver information. Depending on the host platform, technicians may be able to view module temperature, supply voltage, laser bias and transmit or receive optical power. These values support commissioning and fault isolation, but they should be interpreted in context. A reading near a threshold may indicate insufficient margin, contamination, excessive loss or a developing physical-layer issue.
During installation, record baseline optical readings at both ends, interface error counters and stable traffic results. Baselines make future troubleshooting more efficient because engineers can compare a degraded circuit with its original condition. A sudden receive-power drop may point to a damaged patch lead, disturbed connector or new bend. Gradual change can indicate contamination, component ageing or route deterioration.
Monitoring does not replace fibre inspection and cleaning. Even a small contaminant on an LC connector can cause meaningful loss and reflection. Technicians should use appropriate cleaning tools and never inspect a live optical connector directly. A structured handover should include module orientation, fibre strand identity, endpoint port numbers, optical readings and any interface settings changed during commissioning.
Ideal business environments and use cases
Service-provider backhaul
Connect an aggregation point, tower, cabinet or customer handoff over a long single-mode fibre route where one strand is allocated. Capacity planning should confirm that 1.25G is sufficient for current and forecast traffic.
Campus and multi-site networks
Link distant buildings, warehouses, compounds or operational facilities without relying on copper distance limits. Redundant paths should be considered for services that cannot tolerate a single fibre failure.
Industrial and utility locations
Support communications to remote technical sites or field cabinets where environmental conditions can vary. The host equipment, enclosure, power system and fibre hardware must also meet the environmental requirement.
Surveillance aggregation
Carry camera-network traffic from remote zones back to a control or recording location. The link capacity must be checked against camera count, bitrates, retention architecture and peak traffic.
Transport and infrastructure sites
Provide connectivity between distributed roadside, rail, logistics or facilities-management locations where fibre is available but endpoint separation is substantial.
Temporary migration paths
Use an existing single fibre during network migration or phased modernisation. Confirm that the temporary design does not create an unsupported bottleneck or undocumented dependency.
Integration and operational considerations
The module pair is one component in a complete optical link. The network devices at each end must support the SFP format and the intended 1.25G operation. Although SFP+ cages often accept lower-speed SFP modules, this depends on the host hardware and software configuration. Check the current MikroTik compatibility information for the exact endpoint models and review any speed-setting guidance.
The physical path should use single-mode fibre terminated with Single LC UPC connectivity. APC and UPC polish types should not be directly mated. If the building infrastructure presents a different connector, use a correctly specified patching or adapter plan. Every added interface contributes loss, so convenient patching must still remain within the optical budget.
Interface configuration can affect link establishment. Confirm whether auto-negotiation should be enabled, whether a fixed 1G speed is required, and whether flow control or link monitoring policies apply. On routed links, review IP addressing, dynamic routing and failover. On switched links, check VLAN tagging, loop prevention and spanning-tree design. The optic creates the physical connection; it does not determine the higher-layer topology.
Operational teams should keep a compatible spare strategy based on criticality and replacement lead time. Because this is a paired wavelength system, spare planning should consider whether to hold a complete pair or individual endpoint modules. Labelling and asset records are important so that the complementary transmit and receive wavelengths are not confused during an emergency replacement.
Questions to resolve before ordering
What are the endpoint models?
Provide the exact router, switch or outdoor-device codes. Compatibility and supported interface speeds should be reviewed at both ends.
What is the measured route loss?
Distance is useful, but an optical-loss figure or recent fibre test offers better guidance for long-reach design.
Which connector polish is installed?
The modules use Single LC UPC. Confirm patch panels and leads match the required connector type.
Is 1.25G sufficient?
Review current and forecast traffic. A higher-speed optic may be more appropriate for expanding backhaul or aggregation links.
Is redundancy required?
A single-fibre connection is still one physical path. Critical applications may need route or technology diversity.
Who will install and test?
Define responsibility for cleaning, patching, interface configuration, optical measurement and final documentation.
Procurement checklist
- Confirm the exact model code S-4554LC80D.
- State the number of complete module pairs required.
- Provide both endpoint device models and port types.
- Confirm single-mode fibre and Single LC UPC presentation.
- Share route distance and measured attenuation where available.
- List patch panels, splice points and planned patch leads.
- Confirm whether attenuators may be needed on short paths.
- Define indoor, outdoor or industrial cabinet conditions.
- Check the required traffic capacity and growth forecast.
- Decide whether a redundant circuit is required.
- Include installation, cleaning and testing scope if needed.
- Confirm documentation, labelling and handover expectations.
- Ask for current UAE availability and vendor lead time.
- Confirm warranty guidance in the commercial quotation.
How FourTeck can assist
FourTeck can support buyers who need more than a part number. The starting point is requirement clarification: what the link connects, how far it runs, which fibre strand is available, what devices sit at each end and what business service depends on the circuit. This information helps avoid common errors such as ordering the wrong connector, mismatched wavelengths, insufficient speed or an optic that does not fit the host interface.
For procurement teams, FourTeck can coordinate a quotation for the S-4554LC80D pair and related items such as simplex LC UPC patch leads, compatible MikroTik routing or switching platforms, cleaning accessories and implementation services where required. Optional services should be defined in the quotation rather than assumed to be included with the hardware.
For technical teams, assistance may include compatibility review, bill-of-material discussion, deployment planning, interface-configuration scope and testing expectations. Where the route is long or undocumented, a fibre contractor may need to supply attenuation measurements and route reports before final selection. Explore FourTeck business technology products, review available network services, or contact the Dubai team with the endpoint and fibre details.
UAE availability and support guidance
Contact FourTeck to confirm current UAE availability for the MikroTik S-4554LC80D. Supply status can depend on requested quantity, vendor lead time, project schedule and any associated accessories. A complete request should identify whether the requirement is for a new link, an expansion, a replacement or a spare. For replacements, share the existing module labels and endpoint port information to reduce the risk of ordering the wrong wavelength direction.
Delivery and project coordination can be discussed after the exact requirement is confirmed. Where installation is required, define whether the scope includes patching, connector cleaning, module fitting, RouterOS configuration, optical-level checking, traffic testing and handover documentation. Warranty terms should be confirmed on the quotation because they can vary with source, region and commercial conditions.
Dubai, Abu Dhabi, Sharjah and Ajman coverage
FourTeck can coordinate product enquiries and project discussions for organisations operating across Dubai, Abu Dhabi, Sharjah and Ajman. Buyers can submit endpoint models, quantities, fibre-route information and required service scope for review. Delivery, installation and site coordination depend on the confirmed bill of materials, access conditions, technician requirements and project schedule. For multi-location rollouts, provide a location-by-location summary so optics, patching and host equipment are matched correctly rather than assuming every site uses the same fibre presentation.
GCC Availability
FourTeck can assist organisations planning MikroTik optical links across GCC markets, including the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain and Oman. Support can begin with requirement review, endpoint identification, SFP selection, bill-of-material coordination and quotation planning. For the S-4554LC80D, buyers should provide the destination country, required number of pairs, host-device models, fibre type, route distance and desired project timing. Regional availability, licensing where applicable, delivery schedules, service visits and vendor lead times can vary by country, quantity and project conditions. Cross-border deployments may also need local power, cabling, documentation or implementation considerations even when the transceiver model itself is unchanged. FourTeck can discuss configuration scope, installation planning and support expectations after the technical and commercial requirement is clearly defined. Visit FourTeck Kuwait for regional enquiries where relevant, or use the central contact channel for coordinated multi-country requirements.
Africa Availability
Organisations planning fibre connectivity in Africa can contact FourTeck for product evaluation, quotation coordination and deployment guidance. Long-distance optical projects can involve different route conditions, connector standards, power environments, shipping arrangements and support expectations, so the exact requirement should be reviewed rather than copied from another region. Share the destination country, endpoint equipment, quantity, fibre-route length, measured attenuation where available, preferred deployment schedule and whether installation or remote configuration assistance is required. Availability and fulfilment may depend on the destination, module quantity, vendor lead time, shipping route, local project conditions and compatibility with existing infrastructure. FourTeck does not assume local inventory or guaranteed onsite coverage without confirmation. Relevant regional channels include FourTeck Kenya, FourTeck Uganda and the broader FourTeck Africa technology portal.
Related products and services to consider
Compatible MikroTik routers and switches
Select endpoint hardware with suitable SFP or SFP+ cages and confirmed 1.25G support. Port count, routing capacity and environmental rating should match the wider design.
Simplex LC UPC patch leads
Use single-mode patch leads with the correct polish and length. Cable quality, bend management and connector cleanliness affect optical performance.
Fibre testing and commissioning
Include optical power measurement, route verification, interface checks and traffic testing when the link is operationally important or the fibre records are incomplete.
Higher-speed optical alternatives
Projects requiring 10G or more should evaluate compatible SFP+ or higher-speed modules rather than using a 1.25G pair as a bottleneck.
Network configuration support
Define VLAN, routing, monitoring, failover and interface settings as a separate implementation scope where the customer needs assistance beyond hardware supply.
Redundant connectivity planning
Consider secondary fibre, wireless backup or diverse-path design when the connected service requires continuity beyond a single physical route.
Why businesses contact FourTeck
Technology buyers often know the model they want but still need confidence that it fits the actual deployment. FourTeck focuses on practical assistance such as confirming the exact part number, reviewing endpoint compatibility, clarifying connector and fibre requirements, discussing the bill of materials, coordinating a quotation and defining any optional installation or configuration work.
For the S-4554LC80D, the most valuable questions concern module pairing, optical distance, route attenuation and host-device support. FourTeck can help organise these inputs so the purchase request is more complete. This is particularly useful for procurement teams that need a technical checklist, project owners coordinating several sites, or network administrators replacing an existing module under time pressure.
Learn more about FourTeck or submit the product code, quantity and project details through the FourTeck business technology contact page.
Frequently asked questions
What is included in the MikroTik S-4554LC80D?
It includes one S-45LC80D and one S-54LC80D module. They use complementary transmit and receive wavelengths and are intended to operate as a pair at opposite ends of one single-mode fibre strand.
Can both ends use the same module?
No. The link requires complementary wavelength directions. One endpoint uses the S-45LC80D and the other uses the S-54LC80D. Clear endpoint labelling is recommended.
Does the pair really work over 80 km?
MikroTik specifies a distance of up to 80 km, but actual operation depends on the complete optical-loss budget, fibre condition, connectors, splices and engineering margin. A route test is advisable for critical or undocumented links.
What fibre and connector are required?
The modules are designed for single-mode fibre and use Single LC UPC connectors. Confirm the patch-panel presentation and avoid directly mating incompatible UPC and APC connector polishes.
Is the S-4554LC80D compatible with an SFP+ port?
MikroTik states compatibility with its products that have SFP or SFP+ cages, but the exact device model and supported speed settings should still be checked before ordering.
Does it support Digital Diagnostic Monitoring?
Yes. Both modules are specified with DDM. The values visible to the administrator depend on the host equipment and software support.
Is it suitable for outdoor deployment?
The modules are tested for industrial temperatures from -40°C to +85°C. The host device, enclosure, power system and all other components must also be rated for the actual site conditions.
Do I need an optical attenuator?
Possibly on a short or unusually low-loss route. Long-reach optics can provide higher launch power. The requirement should be determined from module limits and measured receive levels.
What information is needed for a Dubai quotation?
Provide the product code, quantity, both endpoint device models, route distance, fibre type, connector details, deployment location and any installation or testing requirements.
Is UAE stock guaranteed?
No stock claim is made here. Contact FourTeck to confirm current UAE availability, vendor lead time, quantity and commercial terms for the requested project.
Plan the fibre link before placing the order
Send FourTeck the endpoint models, fibre distance, connector details and required quantity. The team can coordinate product confirmation, quotation and any installation or configuration scope required for your UAE project.
