LS-CW331G-80C functions as a 1330nm CWDM SFP transceiver, rated for 1.25Gbps and 80km SMF transmission, with a DFB laser source and a PIN detector. Over the 0 - 70°C ambient range, it provides built-in real-time DDM functions that monitor critical operating parameters (like optical power, bias current, temperature, and voltage) without external metering. The module’s wavelength stability and dispersion tolerance are specifically defined for long-haul CWDM links at this reach.
LINK-PP Part Number
LS-CW331G-80C
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1330nm
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 Support
Yes
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of LINK-PP LS-CW331G-80C 1G SFP
LINK-PP LS-CW331G-80C is a hot-pluggable SFP transceiver that complies with SFP MSA and delivers 1Gbps over 80km of single-mode fiber using a 1330nm CWDM channel. It features a duplex LC connector and built-in DDM for real-time optical monitoring, while its 0-70°C operating range ensures stable operation in typical commercial environments.
LINK-PP LS-CW331G-80C 1G SFP Optical Module
This SFP-compliant module adopts a hot-pluggable footprint that fits standard SFP ports. It fully meets MSA requirements for mechanical, electrical, and management interfaces, enabling straightforward integration into existing network systems.
LS-CW331G-80C: 1 Gbps Connectivity for Point-to-Point Backhaul
Supporting 1Gbps bit rates, this transceiver is well suited for point-to-point backhaul applications. It delivers consistent gigabit throughput over dedicated fiber paths between two network nodes.
LS-CW331G-80C Module with CWDM Technology for Fiber Efficiency
Built with CWDM multiplexing, this optic allows multiple wavelength channels to share a single fiber strand. By operating on a designated 1330nm channel, it helps operators expand capacity without laying additional cables.
LS-CW331G-80C Module with 1330nm Wavelength
The 1330nm wavelength offers a favorable balance between attenuation and dispersion in standard single-mode fiber. This choice minimizes signal distortion and ensures stable transmission performance across the rated distance.
LS-CW331G-80C Module Supporting 80km Transmission
Rated for 80km transmission, the module provides sufficient optical budget for long-haul single-mode fiber runs. Its DFB laser and PIN receiver are tuned to preserve signal integrity even at the maximum reach.
LS-CW331G-80C Module with Duplex LC Interface
Equipped with a duplex LC connector, this interface ensures secure, polarity-correct fiber connections. The LC form factor is widely adopted, which simplifies cabling and patch-panel integration.
LS-CW331G-80C Module with DDM for Real-Time Monitoring
Including digital diagnostic monitoring (DDM), the transceiver gives real-time visibility into Tx/Rx power, laser bias current, operating temperature, and supply voltage. This data enables network administrators to quickly detect fiber degradation or link anomalies.
LINK-PP LS-CW331G-80C 1G SFP Certification
The LS-CW331G-80C CWDM 1G SFP module meets strict global standards, including ISO 9001, CE, RoHS, and FCC compliance. These designations ensure manufacturing quality, safety, and environmental protection for network setups.
Each transceiver undergoes rigorous physical and optical testing before leaving the factory. This step guarantees stable signal transmission and long-term durability in real-world applications.
LS-CW331G-80C Quality Certifications
Industry approvals confirm that this optical module meets strict international requirements. These official credentials validate its product reliability while ensuring full regulatory compliance across global markets.
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-CW331G-80C Certified for Reliable Host-Device Compatibility
The module is extensively verified in actual switch hardware to ensure plug-and-play operation. It eliminates system error logs and guarantees seamless connectivity with major network equipment.
Rigorous Testing Ensures Reliable SFP Performance
Every LS-CW331G-80C SFP module undergoes strict physical validation to guarantee stable network connections. Discover the complete validation methodology at the LINK-PP Test Support Center.
Optical Spectrum Test
Evaluate the center wavelength to ensure accurate and stable light transmission.
Eye Pattern Test
Analyze the optical signal to prevent data distortion during actual operation.
Bit Error Rate Test
Verify the transmission accuracy to maintain flawless data delivery across networks.
Temperature Test
Assess the hardware stability to guarantee reliable operation across extreme environments.
Product Shipping for LINK-PP LS-CW331G-80C 1G SFP
We deliver every LS-CW331G-80C 1G CWDM SFP module safely and quickly to your site. Secure packaging ensures total protection during transit.
Anti-Static Protective Packaging
Shield delicate electronic components against static electricity during handling and transit.
Shock-Resistant Transport Protection
Protect hardware against impact and vibration throughout the entire shipping process.
Fast Order Processing and Dispatch
Prepare and dispatch network hardware quickly to minimize customer delivery delays.
Global Logistics and International Delivery
Ship optical transceivers reliably to enterprise destinations and customers worldwide.
LINK-PP LS-CW331G-80C 1G SFP Usage Demonstration
Simply plug this LS-CW331G-80C hot-swappable 1330nm CWDM SFP module into an active switch port and connect your single-mode duplex LC fiber patch cable. It enables seamless long-reach CWDM optical transmission, making it ideal for expanding bandwidth across enterprise campus backbones, metro networks, and data center interconnections.
LS-CW331G-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-CW331G-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:
Yes. The transceiver natively supports data rates up to 1.25 Gbps. It works seamlessly with standard Gigabit Ethernet switches and 1.063G Fibre Channel SAN storage connections over your CWDM network. By
admin on
2026-04-09
A:
If operating temperatures exceed 70°C, the CWDM laser wavelength can drift outside its standard channel grid, which may cause optical packet loss or link drops. As long as your equipment runs within 0°C to 70°C, the module will perform stably. By
admin on
2026-02-08
A:
Yes, the LS-CW331G-80C module features built-in Digital Diagnostic Monitoring (DDM). Through your switch CLI or web interface, you can monitor real-time Rx/Tx optical power, operating temperature, laser bias current, and supply voltage to track link health. By
admin on
2025-10-31
A:
It should generally be a great fit, but we always recommend checking your total optical loss budget first. The LS-CW331G-80C is designed for long-distance Single Mode Fiber (SMF) with duplex LC connectors. While 65km is well within its rated reach, fiber quality, splice points, and CWDM Mux insertion loss can add up. As long as your total link loss stays within the module's optical power budget, it will provide a reliable, stable connection. By
admin on
2025-06-16
We swapped legacy 1310nm optics for these 1330nm CWDM modules across several backbone segments to free up wavelength capacity. Link stability improved noticeably, with clean handshakes on every port and no unexpected re-syncs during peak traffic windows. The DOM function gave our NOC clear visibility into optical health, which helped us prioritize fiber maintenance without dispatching crews.
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492530
445798
O***g
Morocco
Verified
Purchase
5 .0
2026-05-13
We tested these on a multi-vendor switch environment; interoperability was clean, and the SFF-8472 support made diagnostics straightforward. Great for mixed-fleet deployments.
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character.
492530
445787
R***w
Nepal
Verified
Purchase
5 .0
2026-03-25
Deployed these 1330nm CWDM SFP modules across our multi-building fiber ring. The link budget easily handled our 52km run with LC duplex patches. Running 24/7 without a single CRC error.
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character.
492530
445796
L***h
Brunei Darussalam
Verified
Purchase
5 .0
2026-02-22
Deployed a pair for a point-to-point metro link; 75km SMF run stayed stable with no packet loss over a week of stress testing. The 1330nm CWDM wavelength paired cleanly with our MUX/DEMUX.
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character.
492530
445790
Y***n
Germany
Verified
Purchase
4 .0
2026-01-20
Great optics and clean DOM data, though our first shipment took a bit longer than expected to clear customs. Once in hand, the 1330nm 80km SFPs worked flawlessly on our SMF links.
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character.
492530
445789
X***s
United Kingdom
Verified
Purchase
5 .0
2025-12-06
We deployed these in a set of climate-controlled outdoor cabinets along a metro route, pairing them with existing CWDM MUX/DEMUX gear. Thermal behavior was predictable, and the modules stayed within their rated commercial range even during hot afternoons. Link uptime has been excellent, and the ability to monitor optical health remotely has cut down on routine site visits. The duplex LC connectors and standard SFP footprint made the install quick for our field teams.
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492530
445783
N***k
Lithuania
Verified
Purchase
5 .0
2025-10-26
Bought 50 pcs for a campus fiber refresh; consistency across the batch was excellent, and the 1.25Gbps rate fits our legacy aggregation gear. Shipping was smooth and packaging protected the modules well.
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character.
492530
445785
S***h
Bangladesh
Verified
Purchase
5 .0
2025-08-25
Paired this 1330nm wavelength module with our passive CWDM multiplexer grid. Channel isolation is clean, and receiver sensitivity stayed well within theoretical specs.
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character.
492530
445786
W***e
Libyan Arab Jamahiriya
Verified
Purchase
5 .0
2025-07-09
Our campus spans buildings with varying fiber conditions, so we needed optics that could tolerate different loss profiles while staying on a single CWDM channel. These SFP modules delivered consistent performance across short and long spans, with stable power readings and no intermittent drops. The DOM features let us balance the ring and quickly isolate a patch panel that was causing excess loss. Deployment was straightforward, and the commercial temperature range matched our indoor cabinets perfectly.
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492530
445801
M***n
Cambodia
Verified
Purchase
5 .0
2025-06-14
We use these in a small ISP backhaul node; DDM lets us track optical power and temperature remotely, which cuts down on site visits. Plug-and-play with our SFP slots, no coding needed.
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character.
492530
445791
Q***e
Maldives
Verified
Purchase
5 .0
2025-04-04
For 1G CWDM 1330nm 80km needs, these hit the sweet spot between price and performance. The DFB transmitter and PIN receiver combo delivers stable BER in our tests.
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492530
445788
Z***d
France
Verified
Purchase
4 .0
2025-03-05
No issues on the technical side — clean handshakes and stable links; delivery was delayed by a day due to a sorting error at the local depot. Still a good buy overall.
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492530
445804
U***h
United Arab Emirates
Verified
Purchase
5 .0
2025-02-24
We installed 12 pairs across two aggregation sites. Average TX power measured +2.1 dBm, RX around -12.4 dBm, with DDM showing stable temps under 45°C in our ventilated cabinets. Over 72 hours of 1.25Gbps traffic, we saw zero CRC errors and no re-sync events. The 1330nm CWDM channel aligned perfectly with our existing CWDM MUX/DEMUX grid, and the DOM made it easy to set threshold alerts in our NMS. For 80km-class optics, the link budget headroom was comfortable even with aging fiber.
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character.
492530
445784
P***r
Macao
Verified
Purchase
5 .0
2025-01-31
Running these CWDM modules in an indoor telco room with tight thermal control, the 0–70°C commercial range is a good match and keeps power draw predictable. No unexpected link flaps so far.
Germany · English · EUR
