100 Gigabit single-mode fibre connectivity
MikroTik XQ+31LC02D in Dubai, UAE
Build a 100G optical link across suitable single-mode fibre with a compact QSFP28 module designed for distances of up to 2 km. FourTeck helps business buyers verify the host platform, fibre path, connector type, quantity and implementation requirements before quotation.
Buyer action panel
Share both endpoint models, fibre distance, connector details and required quantity.
FourTeck can review the requirement and coordinate a UAE quotation without assuming compatibility or availability.
QSFP28
100 Gbps
Up to 2 km
Single-mode, dual LC UPC
Direct answer for business buyers
The MikroTik XQ+31LC02D is a 100G QSFP28 optical transceiver for connecting compatible network devices across single-mode fibre runs of up to 2 km. It is mainly used for high-capacity switch uplinks, router interconnects, data-centre fabrics, aggregation links and backbone connections. Organisations considering it should already have, or plan to deploy, equipment with compatible QSFP28 interfaces. Before proceeding, confirm the exact models at both ends, required optical standard, fibre type and condition, dual LC UPC patching, wavelength compatibility, forward-error-correction settings and the measured path length. A transceiver should be selected as part of the complete optical link rather than as an isolated component.
What the module does
The XQ+31LC02D converts electrical 100 Gigabit Ethernet signals from a compatible QSFP28 port into optical signals for transmission through single-mode fibre. Four independent full-duplex channels operate at up to 25 Gbps each and are combined into an aggregate 100 Gbps link. The design uses four wavelengths—1271 nm, 1291 nm, 1311 nm and 1331 nm—over a duplex fibre pair, allowing a high-capacity connection without requiring eight individual fibre strands.
This role makes the module useful where direct-attach copper is too short, where equipment is in separate rooms or buildings, or where an organisation needs an optical path that is less constrained by copper reach. The module does not create additional switching capacity on its own; the connected platforms, port configuration and network design must all support the intended data rate.
Who should consider it
The module may suit enterprise networks, internet service providers, cloud and hosting environments, media production facilities, research networks and campus backbones that require a full 100G optical link across a moderate distance. It can be relevant to MikroTik CCR2216 and CRS504 deployments, while compatibility with any host must be confirmed against current MikroTik documentation and the exact RouterOS and interface configuration.
It is not the right choice for buyers who only need 1G, 10G, 25G or 40G connectivity, for multimode fibre links, or for paths longer than the supported reach. It should also not be ordered merely because the connector physically fits. Port capabilities, optical standard, FEC behaviour and the transceiver used at the far end must form a compatible pair.
Business challenges this 100G optic helps address
Limited uplink capacity
A 100G interconnect can reduce congestion where multiple 10G or 25G access links converge on a core or aggregation layer. Actual benefit depends on traffic patterns, switching architecture and the capacity of both connected devices.
Distance beyond DAC reach
Direct-attach cables are practical inside a rack or between adjacent racks. The XQ+31LC02D supports optical links up to 2 km, making it more suitable for separated data rooms or campus pathways.
Fibre-pair efficiency
The module carries four optical lanes over a duplex single-mode fibre connection, which can simplify patching compared with parallel-optics designs that require a larger fibre count.
Operational visibility
Built-in digital diagnostics can provide insight into optical power and related transceiver conditions. Monitoring support and displayed values depend on the host platform and software.
Product-fit matrix
| Requirement | Suitable when | Confirm before ordering |
|---|---|---|
| 100G backbone link | Both endpoints have supported QSFP28 interfaces | Host compatibility, FEC and port mode |
| Single-mode fibre path | The installed path uses clean duplex SMF and LC UPC patching | Path loss, connector polish and patch-panel condition |
| Up to 2 km reach | Measured route length and loss remain within design limits | Optical budget rather than map distance alone |
| Cross-vendor endpoint | The remote device accepts the matching optical standard | Vendor coding, wavelength plan, FEC and support policy |
Verified technical information
| Brand | MikroTik |
|---|---|
| Product code | XQ+31LC02D |
| Product type | 100 Gigabit optical transceiver |
| Form factor | QSFP28 |
| Data rate | 100 Gbps aggregate, four channels up to 25 Gbps each |
| Maximum distance | Up to 2 km, subject to fibre loss and complete link design |
| Fibre mode | Single-mode |
| Connector | Dual LC UPC |
| Wavelengths | 1271 nm, 1291 nm, 1311 nm and 1331 nm |
| Diagnostics | Built-in digital diagnostic functions, including optical-power monitoring |
| Operating temperature | 0°C to 70°C |
| Example MikroTik platforms | CCR2216 and CRS504 are named by MikroTik; confirm all host models against current compatibility information |
| Licensing | No separate optic license confirmed; device software and feature requirements are host dependent |
| UAE availability | Contact FourTeck for current options, quantity and vendor lead time |
Compatibility and optical-path dependencies
A successful 100G optical link depends on more than matching the connector. Both network devices must support the intended Ethernet rate and optical implementation. The transceiver at the remote end should use a compatible 100G standard and wavelength plan. Forward-error-correction settings may need to be aligned, and some platforms require a particular RouterOS release, port breakout configuration or manual interface setting. Fibre cleanliness, bend radius, splice quality, patch-panel loss and connector polish can all influence received optical power.
Before installation, document the complete fibre route, count every connector and splice, and verify the measured loss with suitable test equipment where the link is business critical. LC APC connectors should not be directly mated to LC UPC interfaces. Third-party host devices may impose vendor-coding or support restrictions even when the optics are technically similar. FourTeck can help organise a compatibility review, but final acceptance should be based on the exact endpoint documentation and a tested link.
A practical purchase and deployment journey
Define the link
Identify the two endpoints, route length, required throughput and redundancy design.
Verify interfaces
Confirm QSFP28 support, port mode, FEC behaviour and software requirements.
Inspect the fibre
Validate single-mode fibre, duplex LC UPC patching, loss budget and cleanliness.
Build the bill of materials
Include modules for both ends, patch leads, cleaning tools and any spare requirement.
Configure and test
Install safely, align settings, check diagnostics and perform traffic validation.
Capacity for modern aggregation links
A single 100G uplink can be valuable when an aggregation switch receives traffic from many servers, wireless controllers, access switches or customer circuits. Rather than treating the headline rate as an automatic performance guarantee, planners should evaluate oversubscription, packet size, switching silicon, CPU-bound services and traffic direction. A 100G optic cannot compensate for an under-sized router, a congested backplane or a slow upstream service. It provides the physical-link capacity that a properly designed network can use.
For migration projects, it may be sensible to establish the optical path first, validate stability and then move selected traffic in stages. Organisations should consider whether one 100G link is sufficient or whether two links are needed for redundancy, maintenance flexibility or link aggregation. Redundant designs require compatible ports, additional optics and separate fibre paths where true path diversity is expected. FourTeck can assist with a requirement discussion that distinguishes physical link speed from the application and routing performance expected by the business.
Digital diagnostics for operational checks
The XQ+31LC02D includes digital diagnostic functions that can expose useful transceiver information through a compatible host. Optical transmit and receive power can help engineers identify excessive path loss, dirty connectors or a weak link margin. Temperature, voltage and laser-related readings may also be available depending on how the host presents the module data. These values are operational aids, not a replacement for calibrated fibre testing or the manufacturer’s acceptance limits.
Network teams should record baseline readings after commissioning and compare them during maintenance. A gradual reduction in received power can indicate a developing fibre issue, while sudden changes may point to disturbed patching or contamination. Alert thresholds must be set carefully because values close to a warning boundary do not automatically identify the root cause. Access to diagnostics is also platform and software dependent, so buyers should confirm how their intended MikroTik device reports transceiver information and whether their monitoring platform can collect it.
Single-mode reach without excessive fibre count
The module uses four optical wavelengths across one duplex single-mode fibre connection. This makes it attractive for locations where an existing two-fibre path is available and where parallel optics requiring more strands would complicate the design. The 2 km class is well suited to many campus, industrial, hospitality, education and multi-building enterprise environments, although the true usable distance depends on attenuation and connector losses rather than route length alone.
Buyers should confirm that the installed fibre is single-mode and that the patch leads use the correct LC UPC polish. A route assembled from multiple patch panels and splices may have materially more loss than a direct run of the same distance. Fibre cleaning is essential at 100G because contamination can increase loss and reflectance. For new installations, the contractor should document fibre type, strand identification, test results and patch-panel mapping so future troubleshooting does not rely on assumptions.
Ideal environments and use cases
Data-centre leaf and spine links
Connect compatible switching layers where high east-west traffic justifies 100G capacity and the optical route is within the supported budget.
Enterprise core interconnects
Link core or distribution equipment across separate communications rooms while retaining a duplex single-mode fibre design.
Service-provider aggregation
Provide high-capacity backhaul between suitable routers and switches, subject to traffic engineering, redundancy and platform performance.
Media and production networks
Support large file transfers and high-bandwidth workflows where the complete storage, server and switching environment can use a 100G path.
Campus backbone upgrades
Increase capacity between buildings when existing single-mode fibre is suitable and the optical loss remains within design limits.
High-availability interconnects
Deploy paired links across diverse ports and, where possible, diverse fibre routes to reduce planned-maintenance and path-failure exposure.
Integration and operational considerations
Plan the XQ+31LC02D as part of the wider network system. Confirm that the host device has sufficient switching or routing capacity, that transceiver temperatures remain within operating limits and that the equipment airflow is not blocked. High-speed optics should be inserted and removed using appropriate electrostatic-discharge precautions. Fibre connectors should be inspected and cleaned before mating, with dust caps retained for unused components.
For inter-vendor connections, compare the optical specifications at both ends rather than relying only on the label “100G.” The remote transceiver must use compatible wavelengths, modulation and reach class. FEC settings are a common source of link-up issues. A maintenance plan should include spare optics where downtime is costly, documented baseline readings, labelled patch leads and a rollback path. Monitoring should cover interface errors, link flaps, optical power and temperature. Any network change should be validated under representative traffic rather than only checking that the link light is active.
Questions to resolve before ordering
Provide exact model numbers, installed software versions and available QSFP28 ports.
Include patch-panel routing, not only the straight-line distance between rooms or buildings.
Confirm single-mode fibre and duplex LC UPC interfaces throughout the path.
A resilient design may need two or more modules per endpoint and separate physical routes.
Include port setup, FEC alignment, testing and documentation in the requested scope.
Define link stability, optical levels, throughput and failover checks before commissioning.
Procurement checklist
- Exact product code XQ+31LC02D
- Required quantity and spare policy
- Both endpoint device models
- Current RouterOS or host software version
- QSFP28 port availability and operating mode
- FEC and cross-vendor interoperability requirements
- Single-mode fibre confirmation
- Duplex LC UPC patching
- Measured route distance and optical loss
- Patch leads, adapters and cleaning materials
- Redundancy or diverse-path requirement
- Installation and configuration scope
- Testing and handover documentation
- Current UAE lead time and warranty confirmation
How FourTeck can assist
FourTeck can help turn a model request into a complete purchasing requirement. The review can cover the connected MikroTik platforms, expected link distance, fibre type, required quantity, spare strategy and whether installation or configuration assistance should be included. For more complex projects, the discussion can also consider redundancy, patching, optical testing, monitoring and handover documentation. This approach reduces the risk of ordering a physically compatible module that does not meet the operational need.
Buyers can explore related networking options through the FourTeck product catalogue, discuss technical work through the technology services team, or send the endpoint and fibre details through the Dubai quotation contact page. The quotation should confirm the exact product, quantity, commercial terms, availability and any service scope.
UAE availability and support guidance
Contact FourTeck to confirm current UAE availability for the MikroTik XQ+31LC02D. Availability may depend on quantity, vendor lead time and the timing of the request. Delivery planning should begin only after the exact model, number of modules and destination are confirmed. Where the optic forms part of a network upgrade, include any required patch leads, testing, configuration and documentation in the same requirement so the commercial scope is clear.
FourTeck can coordinate enquiries for organisations in Dubai and support requirement discussions covering Abu Dhabi, Sharjah and Ajman in one combined UAE project plan. Site access, fibre readiness, maintenance windows and remote or on-site engineering expectations should be discussed before installation dates are proposed. Warranty conditions should be confirmed in the final quotation rather than assumed from a general product listing.
GCC availability
Businesses planning 100G MikroTik links elsewhere in the GCC can ask FourTeck for requirement review and quotation coordination. Projects in the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain and Oman may have different purchasing, delivery and implementation conditions. Share the destination country, exact host devices, required quantity, fibre distance, preferred deployment schedule and whether configuration or optical testing support is needed. FourTeck can help clarify the model, compatible link design, accessories and service scope before commercial terms are prepared. Product availability, delivery schedules, service visits, vendor lead times and warranty handling can vary by country and order size. No local inventory, fixed delivery date or country-specific approval should be assumed until the requirement has been reviewed and confirmed in writing. For Kuwait-related coordination, buyers may also visit the FourTeck Kuwait information site.
Africa availability
FourTeck can assist organisations evaluating the XQ+31LC02D for African data centres, service-provider networks, campus backbones and enterprise infrastructure. The assessment should cover the destination country, exact endpoint models, number of modules, fibre specification, power and environmental conditions, required spares and expected project timing. Fulfilment may depend on vendor lead time, shipping arrangements, regional commercial terms and local project conditions. Installation or testing support must be scoped separately and should not be assumed to be available in every location. Buyers in East Africa can review the Kenya technology site or Uganda business technology site, while wider enquiries can be directed through FourTeck Africa. Share the complete optical-link requirement to receive appropriate guidance rather than requesting the transceiver without compatibility context.
Related products and services to consider
MikroTik CCR2216 planning
Review port allocation, routing workload, 100G uplinks and redundancy before selecting optics.
MikroTik CRS504 switching
Plan compact 100G switching, fibre paths and the number of optical or direct-attach links required.
XQ+31LC10D long-reach option
Consider the separate 10 km model only where the required distance and optical design justify it.
100G DAC alternatives
For short in-rack connections, a suitable direct-attach cable may reduce cost and optical complexity.
Fibre inspection and testing
Include cleaning, loss testing and documentation where link reliability is operationally important.
Installation and configuration
Define port settings, FEC alignment, monitoring, traffic validation and handover requirements.
Why businesses contact FourTeck
Business buyers often need more than a part number. They need confidence that the selected optic fits the equipment, fibre route and operational objective. FourTeck can assist with requirement clarification, model selection, quantity planning, bill-of-material review, quotation coordination and discussion of installation or configuration scope. The focus is on identifying dependencies before purchase rather than making unsupported assumptions about compatibility, delivery or performance.
For a useful quotation, provide the exact endpoint models, software versions, available ports, fibre distance, connector type, site location, quantity and expected project schedule. Mention whether the connection is new, a replacement or part of a migration. Also state whether the design requires redundancy, spare modules, testing, remote support or an on-site activity. This information allows the commercial and technical discussion to address the real deployment rather than only the transceiver itself. Learn more about the organisation through the FourTeck company overview.
Frequently asked questions
What is the MikroTik XQ+31LC02D used for?
It is used to create a 100 Gigabit Ethernet optical connection over duplex single-mode fibre for distances up to 2 km between compatible network devices.
Is it a QSFP28 module?
Yes. The XQ+31LC02D uses the QSFP28 form factor and provides an aggregate 100 Gbps data rate through four 25 Gbps optical channels.
Which fibre and connector does it require?
It is designed for single-mode fibre and uses a dual LC UPC connector. Confirm the complete path uses compatible fibre and connector polish.
Can it link devices two kilometres apart?
The specified reach is up to 2 km, but the usable distance depends on total optical loss, connector condition, splices and the complete link budget.
Does it work in every QSFP28 port?
No universal compatibility should be assumed. Confirm the host model, supported optical standard, FEC settings, software version and vendor policy at both endpoints.
Does the module support diagnostics?
MikroTik specifies built-in digital diagnostic functions including optical-power monitoring. The information visible to administrators depends on the host device and software.
Is a separate license required?
No separate license for the optical module is confirmed. The connected device may have its own software, feature or support requirements.
What information is needed for a quote?
Provide both endpoint models, fibre distance and type, required quantity, destination, project timing, redundancy needs and any installation or testing scope.
Is the XQ+31LC02D available in Dubai?
Contact FourTeck to confirm current UAE availability, quantity, commercial terms and vendor lead time. Availability should not be assumed from a web listing.
Can FourTeck help with installation and testing?
Installation, configuration, optical testing and handover can be discussed as part of the requirement. The exact service scope must be confirmed in the quotation.
Confirm the complete 100G link before ordering
Send FourTeck the endpoint models, fibre details, distance, quantity and project location. The team can help review compatibility, current UAE availability and the appropriate quotation scope.
