LS-CW451G-80C comes as a 1450nm CWDM SFP module with support for data rates of up to 1.25Gbps. Built with a DFB laser and PIN photodiode, it delivers transmission over SMF distances of up to 80km and operates within a 0 to +70°C temperature range. Real-time digital diagnostic monitoring enables continuous monitoring of essential module parameters and operating status.
LINK-PP Part Number
LS-CW451G-80C
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1450nm
Max Cable Distance
80km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-1 to +4dBm
RX Power
-26 to -1dBm
Receiver Sensitivity
-26dBm
Receiver Overload
-1dBm
EMC (Electromagnetic Compatibility)
Supported
DDM
Supported
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of LINK-PP LS-CW451G-80C 1G SFP
LINK-PP LS-CW451G-80C delivers reliable optical transmission for metropolitan-area network links over a single 1450nm CWDM channel. This module combines standard SFP mechanical compatibility with extended 80km reach and digital diagnostics. Its design prioritizes fiber utilization efficiency, real-time link supervision, and straightforward integration into existing gigabit equipment.
LINK-PP LS-CW451G-80C 1G SFP Optical Module
This optical module adopts a hot-pluggable SFP footprint for effortless installation and replacement without system power-down. It fully complies with SFP MSA specifications, ensuring interoperability with a wide range of switches and routers. The industry-standard electrical interface and housing simplify network upgrades and maintenance tasks.
LS-CW451G-80C: 1 Gbps Connectivity for Metropolitan Fiber Links
The 1Gbps data rate positions this transceiver as a dependable solution for metro‑area fiber connections. It handles Ethernet traffic in access rings and aggregation points across city networks, linking central hubs with remote facilities. This 1G speed aligns perfectly with the bandwidth requirements of typical metropolitan applications and ensures seamless operation with existing gigabit‑capable equipment.
LS-CW451G-80C Module with CWDM Technology for Fiber Efficiency
Coarse wavelength division multiplexing allows multiple wavelengths to share one fiber pair, reducing cable infrastructure costs. This module operates as one channel in a standard CWDM grid, enabling capacity expansion without adding new fibers. Network planners can mix it with other CWDM transceivers at different wavelengths for flexible link design.
LS-CW451G-80C Module with 1450nm Wavelength
The 1450nm center wavelength falls within the CWDM band, offering low attenuation in typical single-mode fiber. This specific wavelength avoids crosstalk with adjacent channels when used in a multiplexed system. It also aligns with common CWDM mux/demux filters for straightforward channel assignment.
LS-CW451G-80C Module Supporting 80km Transmission
An integrated 1450nm DFB laser and high-sensitivity receiver enable error-free operation over distances up to 80km. The link budget accounts for dispersion and loss in standard single-mode fiber, ensuring stable performance across the full reach. This long-haul capability makes it ideal for interconnecting distant campus or city-wide network nodes.
LS-CW451G-80C Module with Duplex LC Interface
The duplex LC connector provides a secure, polarity-consistent physical interface for single‑mode fiber patch cords. This standardized optical interface ensures quick mating with existing fiber plant and distribution panels. It supports both transmit and receive on separate fibers, matching typical CWDM deployment practices.
LS-CW451G-80C Module with DDM for Real-Time Monitoring
Digital diagnostics monitoring (DDM) continually reports critical parameters such as optical power, supply voltage, temperature, and bias current. Real-time data helps operators detect fiber degradation or connector contamination before service interruptions occur. This monitoring function also facilitates remote fault isolation and proactive link maintenance.
LINK-PP LS-CW451G-80C 1G SFP Certification
LINK-PP LS-CW451G-80C optical transceiver complies with major global standards, including ISO 9001, CE, RoHS, and FCC certifications. These official approvals confirm that the module meets strict international quality, safety, and environmental requirements.
Each module undergoes rigorous performance and environmental testing before leaving the factory. This comprehensive process ensures consistent data transmission and long-term signal stability.
LS-CW451G-80C Quality Certifications
The product adheres to strict international manufacturing benchmarks throughout its production. These certifications guarantee high reliability and safe operation in critical network environments.
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.
LS-CW451G-80C Certified for Reliable Host-Device Compatibility
The transceiver is extensively verified to work seamlessly with a wide range of major networking switches and routers. Users can enjoy plug-and-play convenience without worrying about system compatibility issues.
Rigorous Testing Ensures Reliable SFP Performance
Every LS-CW451G-80C 1G SFP module undergoes thorough testing to guarantee rock-solid stability in demanding network environments. Discover our complete validation process at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength and spectral bandwidth to maintain stable signal transmission.
Eye Pattern Test
Analyze optical signal quality to prevent waveform distortion across all operating conditions.
Bit Error Rate Test
Measure data transmission accuracy to guarantee zero packet loss at full line rate.
Temperature Test
Evaluate module stability under extreme hot and cold conditions to ensure long-term durability.
Product Shipping for LINK-PP LS-CW451G-80C 1G SFP
We deliver LS-CW451G-80C SFP modules safely using trusted global logistics partners. Every order receives secure packaging and efficient processing.
Anti-Static Protective Packaging
Protect sensitive optical components against electrostatic discharge during transit.
Shock-Resistant Transport Protection
Safeguard optical transceivers against physical impacts during international transit.
Fast Order Processing and Dispatch
Accelerate order fulfillment to ensure quick shipment from our warehouse.
Global Logistics and International Delivery
Ship products worldwide with real-time tracking for reliable delivery.
LINK-PP LS-CW451G-80C 1G SFP Usage Demonstration
Align the LS-CW451G-80C 1G CWDM module with the host SFP port and gently push to lock. Connect duplex single-mode LC cables to establish your channel. This CWDM module optimizes fiber resources for high-density enterprise data centers, long-distance telecom transport, and multi-site corporate networks without adding dark fiber.
LS-CW451G-80C Technical Support
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Pre-Sales Technical Consultation
Professional guidance to help you select the optimal LS-CW451G-80C module for your network design and application needs.
Compatibility Verification Support
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Deployment & Installation Assistance
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
A:
Potentially, yes. The 80km rating is the maximum nominal transmission distance, but the total fiber loss must remain within the module’s optical budget after including fiber attenuation, connector loss, splice loss, and CWDM MUX/DEMUX insertion loss. By
admin on
2026-03-11
A:
No. For a normal duplex CWDM connection, both ends should use matching 1450nm modules. A 1450nm module should not be directly paired with a 1470nm module. By
admin on
2026-01-22
A:
The stated 0°C to +70°C specification is the operating case-temperature range. Actual module case temperature can be higher than room ambient temperature, depending on airflow, switch design, port density, and power consumption. By
admin on
2025-06-30
A:
No. The LS-CW451G-80C module operates from a single +3.3V power supply through the SFP host interface and does not require an external power connection. By
admin on
2025-05-20
Good fit for a long-distance enterprise network where we still have active 1GbE access switches. The 1G SFP format saved us from replacing working equipment while adding another CWDM wavelength to the existing SMF pair.
Please write comments with more than three
character.
492692
444181
N***r
South Africa
Verified
Purchase
5 .0
2026-04-22
We needed 1450nm CWDM modules specifically, not a generic 1310nm long-reach SFP. This module matched our CWDM channel plan, delivered a stable 1.25G connection, and fit our duplex LC patching setup perfectly.
Please write comments with more than three
character.
492692
444177
L***t
New Zealand
Verified
Purchase
5 .0
2026-03-09
Installed as part of a multi-vendor switch refresh where legacy access equipment still relies on standard SFP ports. We provided the required host coding information before ordering, and the modules were delivered ready for our planned device profile. On a 57km single-mode fiber link, the 1.25Gbps port negotiated normally and stayed stable through traffic tests. The Duplex LC interface was convenient because the field plant already used LC patch panels, and DOM helped quickly identify one dirty connector during installation.
Please write comments with more than three
character.
492692
444192
S***x
Norway
Verified
Purchase
5 .0
2026-02-27
A practical option for a 1G backbone over single-mode fiber. Our techs like that it is a standard duplex LC SFP, so there is no special handling beyond checking polarity and cleaning the connectors.
Please write comments with more than three
character.
492692
444172
C***p
Finland
Verified
Purchase
4 .0
2026-01-08
The 80km CWDM 1G SFP itself tested well, linked quickly, and the 1450nm channel matched our fiber plan. One carton arrived with a slightly crushed outer corner, although the anti-static packaging and modules inside were fine.
Please write comments with more than three
character.
492692
444196
Q***h
Russian Federation
Verified
Purchase
5 .0
2026-01-04
The module works well for long-haul 1G Ethernet transport where a 1450nm CWDM channel is needed. Vendor coding was handled before shipment, which made the rollout much faster for our operations team.
Please write comments with more than three
character.
492692
444186
W***s
Netherlands
Verified
Purchase
5 .0
2025-12-21
Ordered these 1G SFP modules for a CWDM MUX/DEMUX upgrade where the 1450nm channel was already assigned in the fiber plan. The modules came up quickly, and DDM monitoring lets our NOC keep an eye on transmit power, receive power, temperature, and supply voltage.
Please write comments with more than three
character.
492692
444180
I***k
Poland
Verified
Purchase
5 .0
2025-12-08
Our data-center team used this 1G 1450nm CWDM SFP module to carry management and storage-related traffic between facilities over single-mode fiber. It is not intended to turn a 1G port into 10G, but for legacy Gigabit interfaces it gives a clean, cost-conscious way to use a long CWDM span. The standard SFP MSA form factor seated properly, and the SFF-8472 DOM data integrated into our normal monitoring workflow.
Please write comments with more than three
character.
492692
444175
M***e
Malaysia
Verified
Purchase
5 .0
2025-11-11
We deployed 18 units of the LS-CW451G-80C in a municipal campus network connecting branch buildings to a central data room. The longest fiber section was just under 73km after splice and patch-panel losses, so we selected the 80km CWDM 1G SFP to retain reasonable margin. Initial DDM readings showed TX around the expected range and receiver levels comfortably above the sensitivity threshold. After several weeks, interface counters remain clean with no observed packet loss or CRC growth.
Please write comments with more than three
character.
492692
444190
T***s
Italy
Verified
Purchase
5 .0
2025-10-29
These 1450nm CWDM SFP transceivers were purchased for a multi-site fiber ring. Each unit was recognized correctly, and the SFF-8472 digital diagnostics were useful during commissioning. No CRC errors so far.
Please write comments with more than three
character.
492692
444183
D***y
Romania
Verified
Purchase
4 .0
2025-09-21
Performance is good on our 68km SMF route, and the DDM values look normal after installation. Shipping took a little longer than expected for a small replacement order, but the optical modules were properly labeled and worked on arrival.
Please write comments with more than three
character.
492692
444197
X***n
Republic of Korea
Verified
Purchase
5 .0
2025-09-09
We used this LS-CW451G-80C 1450nm CWDM SFP to extend a 1G link between two campus buildings. The 80km rating gave us plenty of optical margin on our much shorter single-mode fiber route, and the duplex LC connector made replacement straightforward.
Please write comments with more than three
character.
492692
444171
O***r
Thailand
Verified
Purchase
5 .0
2025-08-04
Nice balance of price and performance for a commercial-grade 1G CWDM SFP. It is especially useful when upgrading fiber capacity is more practical than pulling another cable.
Please write comments with more than three
character.
492692
444176
K***n
Belgium
Verified
Purchase
5 .0
2025-07-19
We evaluated a pair on a long enterprise fiber route that includes multiple fusion splices, distribution frames, and CWDM passive components. The 1450nm channel passed traffic continuously during a 72-hour soak test, while optical diagnostics remained consistent with the calculated loss budget. The -26dBm receiver sensitivity is useful for these longer links, although we still recommend validating actual attenuation and keeping appropriate engineering margin. This is a good commercial-temperature 80km CWDM SFP for indoor network cabinets and managed backbone sites.
Please write comments with more than three
character.
492692
444193
R***r
Singapore
Verified
Purchase
5 .0
2025-06-18
We installed a batch in an indoor equipment room for separate CWDM channels over one fiber route. The optical power values stayed within expected limits, and the modules have been stable through normal HVAC temperature swings.
Please write comments with more than three
character.
492692
444185
J***y
Austria
Verified
Purchase
5 .0
2025-05-14
This was purchased for a 1G base-station backhaul extension where available fiber was limited and the wavelength plan could not be changed. The module’s 1450nm CWDM wavelength allowed us to add capacity without deploying additional fiber pairs. We monitored DOM values during peak utilization and saw no abnormal drift in transmit or receive levels. The unit is commercial-grade rather than industrial temperature rated, so we installed it inside a conditioned enclosure as planned; for that environment, performance has been excellent.
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character.
492692
444173
U***t
Spain
Verified
Purchase
5 .0
2025-04-01
We tested the module on a remote telecom shelter link and got a stable connection with clean diagnostic values. The DFB transmitter and PIN receiver combination works well for this type of 80km CWDM deployment.
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character.
492692
444182
P***k
Philippines
Verified
Purchase
5 .0
2025-03-24
Great module for point-to-point Gigabit links where trenching new fiber wasn't an option. Adding this 1450nm wavelength channel into our existing CWDM filter allowed us to spin up a dedicated backup link across 68km. Solid optical link stability over 30 days of continuous traffic.
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character.
492692
444178
M***h
Indonesia
Verified
Purchase
5 .0
2025-01-08
Our operations team used these modules in a CWDM transport overlay for several 1GbE aggregation links. The key requirement was a 1450nm DFB CWDM transmitter compatible with our existing passive MUX/DEMUX channel map, plus readable SFF-8472 diagnostics. During acceptance testing, we checked temperature, voltage, laser bias, TX power, and RX power on both ends; the readings were consistent across the shipment. For commercial indoor racks operating within 0–70°C, this has been a dependable long-distance 1G SFP optical transceiver.
Germany · English · EUR
