Designed around a DFB laser and a PIN photodiode, the LS-CW431G-80C functions as a 1430nm CWDM SFP transceiver that supports 1Gbps data rates over 80km of single-mode fiber, all within a 0 to 70°C case temperature range. Real-time digital diagnostic monitoring is embedded to provide continuous insight into the module’s operational status, complementing its long-haul capability with proactive maintenance visibility.
LINK-PP Part Number
LS-CW431G-80C
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1430nm
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-CW431G-80C 1G SFP
LINK-PP LS-CW431G-80C is a 1430nm CWDM SFP module that delivers 1Gbps data rates over 80km on single-mode fiber, while operating from 0 to 70°C. It combines a hot-pluggable SFP footprint, duplex LC interface, and real-time digital diagnostic monitoring in a single compact package. These features together support reliable links for campus, aggregation, and long-haul applications.
LINK-PP LS-CW431G-80C 1G SFP Optical Module
The LS-CW431G-80C optical transceiver adopts a hot-pluggable SFP mechanical footprint and is fully compliant with the SFP MSA. This ensures broad interoperability with standard networking equipment and allows quick field replacement without powering down the system.
LLS-CW431G-80C: 1 Gbps Connectivity for Campus Backbone and Aggregation
This transceiver supports 1Gbps Ethernet connectivity, making it well suited for campus backbone and aggregation layers. It provides adequate bandwidth for inter-building trunk links and core-to-distribution connections while keeping a simple, cost-effective design.
LS-CW431G-80C Module with CWDM Technology for Fiber Efficiency
The CWDM technology built into this module allows multiple wavelengths to be multiplexed onto a single fiber, greatly improving fiber utilization. By occupying a specific 1430nm channel, it avoids wavelength overlap with other CWDM transceivers in the same network.
LS-CW431G-80C Module with 1430nm Wavelength
Its operating wavelength of 1430nm is part of the standard CWDM grid, enabling seamless integration into existing wavelength-division multiplexing systems. This fixed channel simplifies wavelength planning and reduces the risk of interference during deployment.
LS-CW431G-80C Module Supporting 80km Transmission
The 80km reach over single-mode fiber makes this module capable of spanning long distances between sites, such as in metropolitan or regional networks. It maintains stable signal quality across that distance without needing external amplifiers or repeaters.
LS-CW431G-80C Module with Duplex LC Interface
The duplex LC connector offers a widely adopted, industry-standard optical interface that mates easily with most patch panels and cables. This common interface reduces the need for special adapters and simplifies cable management in data centers and wiring closets.
LS-CW431G-80C Module with DDM for Real-Time Monitoring
The integrated digital diagnostic monitoring (DDM) provides real-time visibility into operating parameters such as temperature, supply voltage, bias current, and optical receive/transmit power. This capability helps network operators detect potential issues early and perform preventive maintenance without service disruption.
LINK-PP LS-CW431G-80C 1G SFP Certification
LS-CW431G-80C 1G SFP optical transceiver meets global industry standards, including ISO 9001, CE, RoHS, and FCC certifications. These credentials ensure that the optical transceiver delivers high reliability and superior manufacturing quality.
Every module undergoes strict physical and performance testing before shipment. This comprehensive testing process guarantees long-term stability and optimal network performance.
LS-CW431G-80C Quality Certifications
These official qualifications confirm that the product adheres to international safety and environmental guidelines. They demonstrate our commitment to delivering trustworthy and eco-friendly hardware.
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-CW431G-80C Certified for Reliable Host-Device Compatibility
The module is thoroughly verified for seamless operation across a wide range of host devices. It ensures easy plug-and-play integration with main brand switches and routers.
Rigorous Testing Ensures Reliable SFP Performance
Every LS-CW431G-80C 1G SFP transceiver undergoes thorough validation to guarantee stable optical signal quality and reliable network operation. Learn more at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength and spectral width to prevent optical dispersion.
Eye Pattern Test
Analyze optical signal clarity and jitter to ensure link quality.
Bit Error Rate Test
Measure data transmission accuracy to prevent packet loss during operation.
Temperature Test
Evaluate thermal endurance across operating ranges to maintain signal stability.
Product Shipping for LINK-PP LS-CW431G-80C 1G SFP
We package every LS-CW431G-80C 1G SFP module securely to prevent damage during transit. Fast transit procedures ensure safe and timely delivery worldwide.
Anti-Static Protective Packaging
Protect sensitive optical components from electrostatic discharge damage during transit.
Shock-Resistant Transport Protection
Shield optical modules against physical impact and vibration during transit.
Fast Order Processing and Dispatch
Process pending orders quickly to prepare items for immediate carrier pickup.
Global Logistics and International Delivery
Ship products worldwide through trusted international logistics partners for timely arrival.
LINK-PP LS-CW431G-80C 1G SFP Usage Demonstration
Supporting 1430nm CWDM channel transmission, this LS-CW431G-80C 1G SFP module connects via single-mode fiber and LC duplex interfaces. It delivers efficient long-distance connectivity across enterprise networks, metropolitan telecom architectures, and multi-tenant data center environments.
LS-CW431G-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-CW431G-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:
Use the module only on the 1430nm channel and ensure the CWDM components are designed for the corresponding channel plan. Do not connect the module to a different wavelength port, because correct wavelength matching is required for stable operation. By
admin on
2026-02-17
A:
Yes. The LS-CW431G-80C uses a hot-pluggable SFP footprint, so it can normally be inserted or removed while the switch is powered on. Follow your equipment vendor’s maintenance procedure before replacing an active uplink module. By
admin on
2025-09-03
A:
It can, especially if connectors become dirty, scratched, or loosely seated. For an 80km optical link, clean every LC connector before installation and inspect patch cords regularly, because even small additional losses can reduce the available link margin. By
admin on
2025-07-26
Our operations group deployed these 1G CWDM SFP modules for a distributed access-control and video-management network across several industrial buildings. Although the endpoints do not require 10G, they need dependable Gigabit uplinks and clear diagnostic visibility. The LS-CW431G-80C offered the right combination of 1.25Gbps throughput, 80km maximum reach, 1430nm wavelength separation, and Duplex LC compatibility. We tested optical levels before and after moving traffic, then monitored the DOM values over several maintenance windows. There were no unexplained power swings, link flaps, or interface errors.
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character.
492658
444222
W***s
United Arab Emirates
Verified
Purchase
5 .0
2026-05-19
For indoor commercial network cabinets, this is a sensible 1G CWDM SFP option. We are operating within the specified 0–70°C range and have seen stable Tx power and receive power. Packaging and labeling also made wavelength sorting easy.
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character.
492658
444205
P***l
Morocco
Verified
Purchase
5 .0
2026-03-27
These were selected for a multi-wavelength CWDM ring where fiber pairs are limited. The 1430nm DFB CWDM laser performed consistently, and the PIN receiver had no issue with our measured receive levels. Nice option for legacy 1G infrastructure.
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character.
492658
444210
S***n
Nepal
Verified
Purchase
5 .0
2026-02-06
Upgraded our multi-tenant inter-building trunk with this 1G CWDM 80km SFP. The DFB laser maintains stable wavelength pass-through across our passive multiplexer, keeping channel crosstalk non-existent. The bit error rate has been zero across 30 days of continuous uptime.
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character.
492658
444213
Z***r
United States
Verified
Purchase
5 .0
2026-01-31
We installed LS-CW431G-80C CWDM SFP modules in a phased campus network modernization project. Each unit was used on the 1430nm channel of a passive CWDM system, transporting 1Gbps traffic over OS2 single-mode fiber between core, distribution, and remote building switches.
During acceptance testing, we reviewed DOM data on every port, including module temperature, supply voltage, transmit output, and received optical power. The DDM readings gave our team quick confirmation that connector cleaning and splice-loss conditions were acceptable before handing the links to operations. The DFB transmitter and PIN receiver combination maintained stable values across the deployed set, with no packet errors observed during sustained traffic tests.
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492658
444202
O***n
Libyan Arab Jamahiriya
Verified
Purchase
5 .0
2025-12-26
We needed a long-reach 1430nm CWDM optical transceiver for a regional surveillance network. It worked with our single-mode fiber and Duplex LC patch cords without needing any special setup. The module feels well built and runs cool in a standard indoor switch.
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character.
492658
444204
B***y
Germany
Verified
Purchase
5 .0
2025-11-02
This module was used for a long rural backhaul segment connecting a remote communications cabinet to the main network hub. The actual fiber distance was about 65km, with several intermediate patch panels, so we specifically chose an 80km 1430nm CWDM SFP rather than a shorter-reach optic. The modules linked cleanly over Duplex LC single-mode fiber and remained stable during a two-week burn-in. Our technicians monitored Rx power via SFF-8472 diagnostics and found enough headroom to support normal connector aging and future maintenance.
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character.
492658
444220
T***e
Bangladesh
Verified
Purchase
5 .0
2025-10-19
Needed an 80km CWDM SFP module to bridge an off-site backup storage cluster. The duplex LC connector locks firmly into place with zero optical back-reflection issues. Full Gigabit Ethernet line throughput with ultra-low latency. Highly recommended!
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492658
444200
X***e
Argentina
Verified
Purchase
5 .0
2025-09-14
Ordered for a campus fiber network where we wanted to avoid pulling another fiber pair. The 1430nm CWDM transceiver integrated neatly with the passive mux/demux system. It is a straightforward module for long-distance Gigabit Ethernet transport.
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character.
492658
444217
L***r
Brunei Darussalam
Verified
Purchase
5 .0
2025-08-27
We used this 1G 1430nm CWDM SFP to extend a management network from the main office to a utility building. The Duplex LC connection came up immediately over existing single-mode fiber, and the DOM values have remained stable after several weeks.
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character.
492658
444206
E***k
Canada
Verified
Purchase
5 .0
2025-08-17
We purchased a larger lot for a multi-site network refresh where legacy 1G switching remains in service. The design uses CWDM wavelengths to consolidate multiple services over single-mode fiber, and the 1430nm channel was required to match the existing wavelength plan. These transceivers were installed in batches across central and remote locations.
The rollout went smoothly because the modules were clearly labeled and the Duplex LC form factor matched our patching standard. We performed port-level checks for DDM availability, optical power consistency, and error counters after each activation. Results were consistent across the batch, and none required replacement during commissioning. The 80km specification gives useful design flexibility, even though most installed routes are shorter. Excellent fit for commercial-grade indoor network deployments.
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character.
492658
444223
Q***n
Macao
Verified
Purchase
5 .0
2025-07-06
Good choice for a long-distance Gigabit fiber uplink. We checked the digital diagnostics after installation, and the temperature, voltage, and optical power readings were all available as expected.
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character.
492658
444201
Y***l
Japan
Verified
Purchase
5 .0
2025-06-09
Price-to-performance is fair for an 80km 1G CWDM transceiver module. We did not need the full reach, but the extra optical budget helps on an older single-mode route with multiple patch points. Would order again for similar links.
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492658
444218
R***r
Maldives
Verified
Purchase
5 .0
2025-05-22
Used two units for a point-to-point connection between a warehouse and a central IT room. The route is around 72km, so the 80km CWDM SFP gave us a comfortable power budget. The link has been steady through normal daily traffic.
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character.
492658
444203
C***z
France
Verified
Purchase
5 .0
2025-04-11
Integrated several 1430nm 1.25Gbps SFP modules into 8-channel passive CWDM Mux/Demux infrastructures connecting our main campus data center to an off-site secondary facility across 62km of single-mode fiber. The 1430nm wavelength channel operates with minimal spectral width, eliminating adjacent-channel crosstalk across the entire multiplexer backplane. Thermal performance inside our 1RU SFP aggregation switch remained completely stable, with DDM reporting internal case temperatures holding steady at 41°C under continuous enterprise traffic. The hot-pluggable design handles live insertion cleanly without causing transient voltage spikes or link flaps on neighboring ports. Outstanding physical-layer optical engineering.
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492658
444221
M***n
Cambodia
Verified
Purchase
5 .0
2025-03-12
Purchased a small batch for a CWDM MUX/DEMUX project in a business park. The LS-CW431G-80C SFP modules matched the 1430nm channel correctly and gave us plenty of optical margin on links well below the 80km rating. Good value for enterprise fiber expansion.
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492658
444207
F***e
Australia
Verified
Purchase
4 .0
2025-03-03
The modules arrived in good working condition and our 1430nm CWDM links came up right away. One shipment was held an extra day during carrier processing, so build a little buffer into the project schedule.
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492658
444224
V***n
Iran, Islamic Republic of
Verified
Purchase
5 .0
2025-02-19
The LC duplex interface was convenient because the site already had standard LC patch panels. Optical monitoring through SFF-8472 diagnostics helped us confirm the loss budget during turn-up. No issues after the first month.
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character.
492658
444198
N***s
Lithuania
Verified
Purchase
5 .0
2025-01-29
Installed as part of a 1.25G SFP CWDM upgrade between two equipment rooms. The DDM function is useful because our NOC can check Tx/Rx power without sending someone onsite. So far, no CRC errors or unexpected link drops.
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492658
444208
G***t
India
Verified
Purchase
4 .0
2025-01-18
The LS-CW431G-80C optics were packed in anti-static cases and worked normally in our single-mode fiber deployment. International tracking updates were limited for part of the transit, but the order arrived safely.
Germany · English · EUR
