CWDM-SFP-1310-20 provides dedicated point-to-point connectivity as a 1G 1310nm CWDM SFP module supporting transmission distances of up to 20km on single-mode fiber at line rates up to 1.25Gbps. Built with a CWDM DFB laser and PIN photo detector, it features real-time digital optical monitoring capabilities across an operational temperature window of 0 to +70°C.
Cisco Part Number
CWDM-SFP-1310-20
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1310nm
Max Cable Distance
20km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-5 to 0dBm
RX Power
-26 to -1dBm
Receiver Sensitivity
-24dBm
Receiver Overload
-1dBm
EMC (Electromagnetic Compatibility)
Supported
DDM/DOM
Supported
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of Cisco CWDM-SFP-1310-20 Compatible LINK-PP 1G SFP
Cisco CWDM-SFP-1310-20 Compatible LINK-PP module is a commercial-grade 1G SFP optical transceiver utilizing a 1310nm CWDM wavelength to transmit data over single-mode fiber up to 20km. It combines a duplex LC interface, built-in digital optical monitoring, and full MSA compliance to deliver reliable point-to-point network links.
This optical transceiver is engineered with a standard hot-pluggable SFP footprint to ensure easy installation without powering down host systems. It fully complies with the SFP MSA to guarantee broad physical and electrical interoperability across standard networking equipment.
CWDM-SFP-1310-20: 1 Gbps Connectivity for CWDM Site-to-Site Links
Operating at line rates up to 1.25Gbps, this module delivers full-duplex Gigabit Ethernet connectivity across interconnected local and remote network locations. The sustained 1Gbps channel bandwidth ensures stable point-to-point data transmission between facilities without packet loss or signal degradation.
CWDM-SFP-1310-20 Module with CWDM Technology for Fiber Efficiency
Coarse Wavelength Division Multiplexing allows multiple data channels to operate over shared optical cabling by multiplexing distinct wavelengths. This deployment strategy helps network operators expand carrying capacity without the high capital expense of leasing extra dark fiber.
CWDM-SFP-1310-20 Module with 1310nm Wavelength
Operating on a standardized 1310nm optical channel, the internal CWDM DFB laser provides precise wavelength stability within the ITU-T spectral grid. This clean optical output minimizes channel crosstalk when passing through passive optical multiplexers and demultiplexers.
A high-sensitivity PIN receiver pairs with single-mode fiber to sustain clean optical power budgets over long spans reaching 20km. This 20-kilometer optical reach covers the physical span requirements typical of campus backbones and intermediate-reach metro distributions.
CWDM-SFP-1310-20 Module with Duplex LC Interface
The industry-standard duplex LC optical connector provides a secure mechanical latching mechanism to prevent accidental disconnects in dense switch racks. Its small form-factor footprint optimizes port density on patch panels while facilitating direct connections with standard optical patch cords.
CWDM-SFP-1310-20 Module with DOM for Real-Time Monitoring
Built-in Digital Optical Monitoring (DOM) compliant with SFF-8472 allows network operators to easily monitor vital metrics like real-time temperature, optical power, and laser bias current. This continuous tracking helps spot and resolve potential link issues early, ensuring steady performance and preventing unexpected downtime.
Cisco CWDM-SFP-1310-20 Compatible LINK-PP 1G SFP meets international quality and safety standards, holding full ISO 9001, CE, RoHS, and FCC certifications. These verified credentials confirm that each optical transceiver satisfies strict global rules for environmental safety and electromagnetic performance.
Every 1G CWDM SFP module undergoes rigorous factory inspection, including real-time traffic validation and optical wavelength tests. This detailed testing process ensures stable light output and zero packet loss before shipment.
CWDM-SFP-1310-20 Quality Certifications
The module adheres to internationally recognized manufacturing and environmental standards to ensure safe, stable operation in standard network environments. These verified compliance benchmarks demonstrate strict adherence to global safety requirements and sustainable production practices.
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.
CWDM-SFP-1310-20 Certified for Reliable Host-Device Compatibility
Extensive switch-level verification ensures seamless plug-and-play recognition across multiple major network switch brands. This built-in EEPROM verification eliminates configuration errors and avoids port-down issues during installation.
Rigorous Testing Ensures Reliable SFP Performance
Every CWDM-SFP-1310-20 SFP transceiver undergoes comprehensive factory testing to ensure stable signal transmission and long-term hardware reliability across all ports. For detailed testing methodologies, explore the LINK-PP Test Support Center.
Optical Spectrum Test
Measure central wavelength accuracy and spectral width for optical stability.
Eye Pattern Test
Evaluate optical waveform quality and signal clarity to prevent distortion.
Bit Error Rate Test
Verify zero packet loss during continuous data transmission under load.
Temperature Test
Assess module thermal stability across standard operating temperature ranges.
Product Shipping for Cisco CWDM-SFP-1310-20 Compatible LINK-PP 1G SFP
Each CWDM-SFP-1310-20 1G CWDM SFP module is securely packaged and dispatched through reliable shipping channels to guarantee damage-free arrival. Comprehensive logistics tracking ensures fast, transparent transit to customer destinations worldwide.
Anti-Static Protective Packaging
Shield sensitive optical components from electrostatic discharge damage during handling.
Shock-Resistant Transport Protection
Absorb external transit vibrations to preserve precise internal optical alignments.
Fast Order Processing and Dispatch
Streamline warehouse fulfillment routines to accelerate parcel dispatch for orders.
Global Logistics and International Delivery
Coordinate trusted international carriers to ensure dependable worldwide product delivery.
To deploy the Cisco CWDM-SFP-1310-20 Compatible LINK-PP, insert this hot-pluggable module into an SFP slot and connect duplex LC single-mode fiber to a 1310nm CWDM multiplexer port. This straightforward setup establishes clean 1.25Gbps site-to-site links across 20km for campus and enterprise networks.
CWDM-SFP-1310-20 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 CWDM-SFP-1310-20 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:
While 14km is well inside the nominal 20km distance, multiple patch panels and splices introduce extra insertion loss. It is usually best to check that the total calculated attenuation on your fiber path remains comfortably within the optical budget between the transmitter output and the -24dBm receiver sensitivity. By
admin
A:
The LS-CW311G-20C module is designed to support both Gigabit Ethernet and 1.063Gbps Fibre Channel protocols. As long as your storage switch accepts standard SFP modules and supports 1G FC speeds on that port, it typically links up without issues. By
admin
A:
Yes, the transceiver is fully hot-pluggable per SFP MSA guidelines. Inserting or removing the module from an open port should not disrupt power or traffic on neighboring ports of a standard managed enterprise switch. By
admin
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491685
493435
H***s
Denmark
Verified
Purchase
5 .0
2026-05-15
We installed six LS-CW311G-20C CWDM modules between office buildings on existing SMF. All units negotiated normally, optical levels were stable, and the DOM data made acceptance testing much easier.
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491685
493439
F***t
Maldives
Verified
Purchase
5 .0
2026-04-30
We set up a commercial fiber link between our central corporate office and a branch location roughly 15km away. Adding these 1G CWDM SFP transceivers allowed us to add a dedicated line over our existing fiber without digging new trench lines. Light levels stayed strong through several patch panels, giving our team dependable connectivity with zero maintenance overhead.
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491685
493448
R***s
New Zealand
Verified
Purchase
5 .0
2026-01-11
Upgraded our municipal utility monitoring network with these 1310nm 1G CWDM modules. They reliably handle our continuous sensor data stream over 18km of single-mode fiber =D
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491685
493443
S***z
France
Verified
Purchase
5 .0
2025-12-01
Excellent plug-and-play compatibility across all our office aggregation switches. Diagnostics showed normal voltage and stable light levels immediately upon installation :D
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491685
493442
G***z
Germany
Verified
Purchase
5 .0
2025-11-18
We used these 1G CWDM modules to link two separate school campus buildings over 14km of single-mode fiber. They connected seamlessly through our passive multiplexer, and the duplex LC latches hold very securely.
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491685
493434
L***n
United Kingdom
Verified
Purchase
5 .0
2025-09-02
Used this 1310nm CWDM SFP module for a small municipal network extension. The duplex LC connection locked in firmly, and the 20 km single-mode fiber run has stayed error-free through several maintenance checks.
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491685
493441
N***r
Austria
Verified
Purchase
5 .0
2025-08-15
Installed these transceivers along our factory automation network to connect remote control stations to the main control center. The modules had zero trouble handling the electrical interference inside the plant, and running through long single-mode cables was smooth and straightforward. The duplex LC connectors lock firmly into place.
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491685
493436
J***s
Singapore
Verified
Purchase
5 .0
2025-05-19
Placed these transceivers into our enterprise logistics hub to link high-density shipping terminals across the complex. The modules handled our 16km runs with ease, maintaining steady signal output and full gigabit line speed. Swapping them into live switch ports was seamless and required no system restarts.
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491685
493432
S***n
Thailand
Verified
Purchase
5 .0
2025-04-29
Used a pair to bridge high-speed file storage between two enterprise office floors. Our network switches recognized the transceivers right away without needing any port tweaks ;)
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491685
493440
S***n
Nepal
Verified
Purchase
5 .0
2025-03-11
Deployed a batch in our medical center network to establish an isolated channel for patient record backups between hospital wings. The built-in digital optical diagnostics feed real-time signal health directly into our management panel.
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491685
493445
A***n
Brazil
Verified
Purchase
5 .0
2025-01-13
Added these 1310nm SFP transceivers to add extra Gigabit channels over our existing commercial fiber trunk. Throughput has been completely steady with zero dropped packets.
United States · English · USD
