CWDM-SFP-1470-20 is a 1G SFP CWDM module designed to support link speeds up to 1.25Gbps across 20km of single-mode fiber. It combines a 1470nm CWDM DFB laser with a PIN photodetector to ensure low-latency optical signal integrity. Built with real-time digital optical monitoring capabilities, it facilitates proactive network maintenance across operating temperatures ranging from 0 to +70°C.
Extreme Part Number
CWDM-SFP-1470-20
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1470nm
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
DOM Support
Yes
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of Extreme CWDM-SFP-1470-20 Compatible LINK-PP 1.25G SFP
Extreme CWDM-SFP-1470-20 Compatible LINK-PP module is a commercial-grade 1G CWDM module designed to deliver stable 1470nm wavelength transmission over 20km single-mode fiber links. It integrates a duplex LC interface, coarse wavelength division multiplexing technology, and digital optical monitoring to ensure reliable fiber connectivity in commercial networking environments.
This optical transceiver features a hot-pluggable SFP footprint that allows simple live insertion and removal without interrupting neighboring traffic. Built in strict compliance with the Multi-Source Agreement (MSA), the module guarantees seamless plug-and-play interoperability across standard network equipment.
CWDM-SFP-1470-20: 1 Gbps Connectivity for Commercial Optical Backhaul
Delivering continuous data throughput up to 1.25Gbps, this module supports efficient data transport for enterprise and commercial backhaul networks. The gigabit line rate ensures smooth traffic routing between local switches, routers, and aggregation nodes.
CWDM-SFP-1470-20 Module with CWDM Technology for Fiber Efficiency
Coarse wavelength division multiplexing enables multiple data channels to share existing single-mode fiber infrastructure without laying new cabling. This multiplexing capability helps operators significantly lower physical deployment costs while maximizing total fiber bandwidth.
CWDM-SFP-1470-20 Module with 1470nm Wavelength
Operating at a precise 1470nm central wavelength, the built-in DFB laser maintains reliable channel pass-through alignment on the standard ITU-T CWDM grid. This specific optical channel ensures minimal adjacent signal interference when multiplexed alongside other CWDM wavelengths.
An integrated PIN photodetector and high-sensitivity optical transmitter enable dependable link reach extending up to 20km over single-mode fiber. This transmission span easily bridges distributed campus facilities, remote point-to-point links, and regional access networks.
CWDM-SFP-1470-20 Module with Duplex LC Interface
The Industry-standard duplex LC connector provides a firm, compact optical port termination to streamline high-density patch panel connections. Its dual-fiber layout maintains dedicated transmit and receive optical channels for low-loss signal propagation.
CWDM-SFP-1470-20 Module with DOM for Real-Time Monitoring
Integrated Digital Optical Monitoring (DOM) gives network administrators real-time visibility into critical operating telemetry, including Rx/Tx optical power, laser bias current, supply voltage, and operating temperature. Fully compliant with SFF-8472 digital diagnostics standards, it simplifies automated polling and enables proactive fault detection.
Extreme CWDM-SFP-1470-20 Compatible LINK-PP CWDM SFP module meets strict international standards with certifications including ISO 9001, CE, RoHS, and FCC. These certifications prove the module is safe, reliable, and friendly to the environment.
Every CWDM optical module goes through strict testing for signal stability and optical performance before leaving the factory. This testing process makes sure that each module works perfectly in active network setups.
CWDM-SFP-1470-20 Quality Certifications
Official manufacturing approvals ensure that the module meets high global standards for build quality and safety. Following these regulatory guidelines guarantees long-term product durability and operational safety.
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-1470-20 Certified for Reliable Host-Device Compatibility
The transceiver is fully tested to work seamlessly with switches and routers from major networking brands. This broad system compatibility prevents link errors and ensures smooth plug-and-play installation.
Rigorous Testing Ensures Reliable SFP Performance
Every CWDM-SFP-1470-20 CWDM SFP transceiver undergoes comprehensive testing to verify optical signal stability and network compliance before shipment. To explore our complete quality assurance process, visit the LINK-PP Test Support Center.
Optical Spectrum Test
Verify wavelength accuracy and precise CWDM channel pass-through performance.
Eye Pattern Test
Evaluate transmitter signal integrity and clear optical waveform eye opening.
Bit Error Rate Test
Guarantee reliable optical data performance under maximum traffic load.
Temperature Test
Ensure operational stability across standard commercial operating temperature conditions.
Product Shipping for Extreme CWDM-SFP-1470-20 Compatible LINK-PP 1.25G SFP
LINK-PP employs strict packaging protocols and rapid fulfillment pipelines to safeguard optical transceivers throughout transit. Every order moves efficiently through our logistics channels to ensure prompt worldwide delivery.
Anti-Static Protective Packaging
Shield delicate internal circuitry against static electricity during handling.
Shock-Resistant Transport Protection
Absorb physical impacts to safeguard precise internal optical alignment.
Fast Order Processing and Dispatch
Dispatch all orders quickly through optimized warehouse management workflows.
Global Logistics and International Delivery
Ship packages worldwide using reliable international freight routing channels.
Inserting the Extreme CWDM-SFP-1470-20 Compatible LINK-PP into an active SFP port allows seamless hot-plugging without interrupting link traffic. Connecting duplex LC fiber securely attaches this 1470nm CWDM module to multiplexers, delivering dependable commercial optical backhaul for enterprise network traffic.
CWDM-SFP-1470-20 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-1470-20 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:
Yes. If you have a direct point-to-point single-mode fiber link, you can plug this LS-CW471G-20C SFP module into both ends directly. A CWDM Mux/Demux filter is only needed when you want to combine multiple different wavelengths onto a single fiber pair. By
admin on
2026-05-09
A:
Yes, it ships with protective rubber dust caps on the optical bore. However, airborne dust can still settle quickly, so it is always good practice to clean your LC fiber end-faces with a standard one-click optical cleaner before mating to keep signal loss minimal. By
admin on
2026-02-18
A:
Calculate the full optical budget using actual fiber attenuation, splice loss, connector loss, and any CWDM MUX/DEMUX insertion loss. After installation, use DOM to compare the live RX power with receiver sensitivity. Leave practical margin for aging, dirty connectors, and future maintenance. By
admin on
2025-08-11
A:
No, the module is designed strictly for single-mode fiber with duplex LC connectors. Using multimode fiber will cause high optical signal loss and modal dispersion, preventing the 1470nm laser from maintaining a stable link over distance. By
admin on
2025-01-30
Added this 1470nm SFP transceiver into our multi-tenant fiber ring. The DFB laser output holds steady between 0 and 70°C inside our building hub room =)
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491804
461614
T***s
Netherlands
Verified
Purchase
4 .0
2026-04-23
Used 8 units in a campus fiber network with different CWDM wavelengths. This 1470nm SFP module matched the plan perfectly and made the fiber pair much more useful. :-)
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character.
491804
461608
N***l
Brunei Darussalam
Verified
Purchase
5 .0
2026-03-19
Bought these SFP modules for a low-density CWDM upgrade instead of pulling more fiber. The 1470nm channel has been stable in our passive Mux setup, and the DOM readings look reasonable.
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character.
491804
461611
H***r
Mexico
Verified
Purchase
5 .0
2026-02-16
A practical option for legacy 1GbE infrastructure. The duplex LC interface made the swap easy because our existing single-mode fiber patching was already in place.
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character.
491804
461617
T***s
Canada
Verified
Purchase
5 .0
2025-12-10
Integrated these optics to isolate video storage traffic onto a dedicated 1470nm CWDM channel over existing single-mode infrastructure. SFF-8472 DOM reporting works smoothly over SNMP, displaying accurate real-time laser bias and optical power levels at -1.9 dBm Tx and -15 dBm Rx.
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491804
461622
A***e
Morocco
Verified
Purchase
5 .0
2025-11-29
We installed this 1.25G CWDM SFP transceiver in an older access switch for a remote warehouse uplink. It negotiated normally and has held the link without any random flaps.
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character.
491804
461613
S***l
Sweden
Verified
Purchase
4 .0
2025-10-19
These 1G CWDM modules work well, and the 1470nm link is stable, but one retail box arrived slightly crushed in transit. The package inside was intact, so no impact on the module.
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491804
461619
M***s
Austria
Verified
Purchase
5 .0
2025-09-16
Deployed a pair for municipal traffic monitoring backhaul. The 1470nm CWDM channel separated cleanly on our 8-channel mux without touching existing fiber paths :)
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character.
491804
461610
M***n
Hong Kong
Verified
Purchase
5 .0
2025-07-02
Used these 1470nm SFP modules to expand uplink capacity over existing duplex SMF lines using our CWDM filter panels. Transceiver power budget easily handled patch-panel insertion losses, and the link established immediately at 1.25Gbps line rate without any manual optical attenuation needed.
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491804
461623
D***s
Belarus
Verified
Purchase
5 .0
2025-06-21
Deployed a batch of these 1.25Gbps CWDM SFP transceivers across our enterprise distribution links. Connected via duplex LC single-mode fiber through our passive multiplexer over a 14km span. Optical loss measured roughly 6 dB, well within the -24 dBm receiver sensitivity threshold, delivering flawless gigabit throughput without any frame drops :D
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491804
461612
E***n
Japan
Verified
Purchase
5 .0
2025-04-09
Deployed these CWDM modules inside a climate-controlled server room for inter-building NAS backup. Link throughput remains rock steady at full 1.25Gbps line rate.
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character.
491804
461618
E***s
Japan
Verified
Purchase
5 .0
2025-03-04
Installed these 20km optical transceivers into our remote aggregation cabinets. Operating over SMF runs, the DFB laser maintained steady -2.2 dBm Tx power even under fluctuating ambient cabinet conditions within the rated 0 to 70°C window. Full SFF-8472 compliance allowed instant plug-and-play link negotiation across all ports.
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491804
461609
M***l
Spain
Verified
Purchase
5 .0
2025-02-11
Placed two LS-CW471G-20C modules into service on an offsite storage cluster uplink. Even during sustained full-duplex gigabit backup transfers, the internal temperature tracked by DOM stayed well inside normal operational limits with zero packet errors. Reliable and stable hardware for enterprise fiber links =D
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character.
491804
461624
Z***z
Israel
Verified
Purchase
5 .0
2025-01-14
Good fit for an 18km single-mode fiber connection. The DFB transmitter gives us a dependable signal margin on a route that includes several patch panels and splice points.
Singapore · English · SGD
