CWDM-SFP-1530-20 is a 1G CWDM SFP module engineered to support up to 1.25Gbps data rates across 20km single-mode fiber at a 1530nm wavelength. Driven by a CWDM DFB laser transmitter and PIN photodetector, it maintains consistent optical output and sensitivity. It also incorporates real-time digital optical monitoring (DOM) to simplify network management across temperatures from 0 to +70°C.
Extreme Part Number
CWDM-SFP-1530-20
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1530nm
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 Support
Yes
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of Extreme CWDM-SFP-1530-20 Compatible LINK-PP 1.25G SFP
CWDM-SFP-1530-20 is a commercial-grade 1G SFP 1530nm CWDM optical transceiver module designed to deliver reliable data links over single-mode fiber up to 20 km. Featuring a duplex LC interface and real-time digital monitoring, this unit provides a dependable physical-layer solution for bandwidth expansion in modern network infrastructures.
This transceiver utilizes a standard hot-pluggable SFP footprint that allows seamless installation without shutting down host systems. It strictly complies with the multi-source agreement (MSA) specification to ensure cross-platform hardware compatibility.
CWDM-SFP-1530-20: 1 Gbps Connectivity for Fiber-Constrained Networks
Line-rate data transmission speeds up to 1.25Gbps enable efficient traffic handling across enterprise backbones and metro access links. By maximizing data throughput over existing lines, the module helps operators relieve congestion in fiber-limited environments.
CWDM-SFP-1530-20 Module with CWDM Technology for Fiber Efficiency
Coarse Wavelength Division Multiplexing (CWDM) allows multiple data channels to combine over a single fiber pair. This capability significantly increases total bandwidth capacity while reducing the need to lay new optical cables.
CWDM-SFP-1530-20 Module with 1530nm Wavelength
The dedicated 1530nm central optical channel ensures accurate signal routing within multi-channel CWDM grid configurations. The precise spectral grid placement minimizes crosstalk and maintains stable channel separation across the fiber link.
An integrated CWDM DFB laser and PIN photodetector enable steady signal delivery across single-mode fiber links up to 20 km. This coverage distance makes it suitable for connecting distributed network switches across campus and regional sites.
CWDM-SFP-1530-20 Module with Duplex LC Interface
Industry-standard duplex LC connectors deliver low insertion loss and consistent physical alignment with optical patch cords. The compact latching mechanism ensures secure cable engagement in high-density switch configurations.
CWDM-SFP-1530-20 Module with DOM for Real-Time Monitoring
Built-in digital optical monitoring capability complies with SFF-8472 standards to track key operational parameters like optical power and temperature. Network administrators can access these telemetry diagnostics directly from the host equipment interface.
CWDM-SFP-1530-20 meets international quality and environmental standards, holding ISO 9001, CE, RoHS, and FCC certifications. These compliance certifications verify that the module satisfies strict requirements for operational safety, manufacturing quality, and electromagnetic compatibility.
Each module undergoes 100% line-rate testing, optical spectrum inspection, and thermal cycling before shipment. These factory testing procedures verify physical layer signal integrity and stable optical power levels.
CWDM-SFP-1530-20 Quality Certifications
Compliance documentation confirms that materials and electrical components meet global safety and environmental guidelines. These verified standards ensure low electromagnetic interference and lead-free hazardous substance control.
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-1530-20 Certified for Reliable Host-Device Compatibility
The module firmware is validated on major networking switches and routers to ensure seamless port recognition. Proper EEPROM coding guarantees immediate link setup and full digital diagnostic monitoring support in host devices.
Rigorous Testing Ensures Reliable SFP Performance
CWDM-SFP-1530-20 1G CWDM SFP module undergoes comprehensive factory verification to guarantee optical signal integrity and hardware stability. Discover our complete validation methodology at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength precision and spectral width using optical analyzers.
Eye Pattern Test
Evaluate optical signal quality and waveform symmetry under line rates.
Bit Error Rate Test
Measure data transmission accuracy to ensure zero packet loss performance.
Temperature Test
Validate operational stability across standard commercial operating environments.
Product Shipping for Extreme CWDM-SFP-1530-20 Compatible LINK-PP 1.25G SFP
CWDM-SFP-1530-20 SFP module is packaged and shipped using standardized protective procedures to maintain optical component safety during transit. Each order follows optimized fulfillment channels to ensure safe and timely delivery to international destinations.
Anti-Static Protective Packaging
Shield optical transceivers against electrostatic discharge damage during transport.
Shock-Resistant Transport Protection
Protect delicate optical components from mechanical impact during transit.
Fast Order Processing and Dispatch
Accelerate order handling procedures to ensure prompt dispatch dates.
Global Logistics and International Delivery
Deliver orders safely to worldwide customer locations via reliable carriers.
Operating the CWDM-SFP-1530-20 1530nm CWDM optical transceiver requires hot-plugging the module into an SFP slot and securing LC fiber cabling to establish the optical link. It serves fiber-constrained networks by using CWDM wavelength multiplexing, allowing operators to expand link density and upgrade throughput on existing fiber lines.
CWDM-SFP-1530-20 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-1530-20 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:
No. The LS-CW531G-20C CWDM SFP features a fully compliant hot-pluggable SFP footprint. You can safely insert or remove the transceiver from an active switch port without disrupting adjacent ports or powering down the system. By
admin on
2026-04-28
A:
Yes, exactly. The LS-CW531G-20C module is built with a standard Duplex LC receptacle and operates at a precise 1530nm CWDM DFB wavelength over single-mode fiber. It is fully compatible with standard passive CWDM multiplexers matching the 1530nm ITU grid channel. By
admin on
2026-01-20
A:
No. The high-performance DFB laser inside the LS-CW531G-20C is thermally stabilized to stay tightly centered within the standardized CWDM 1530nm channel grid (1530nm ±6.5nm) across its entire 0°C to +70°C operating envelope. Even under sustained high thermal loads near +70°C, the spectral output will not drift into neighboring 1510nm or 1550nm channels. By
admin on
2025-08-14
A:
Yes. The module supports data rates up to 1.25Gbps and natively handles legacy 1.063Gbps Fibre Channel, making it suitable for both SAN storage links and IP data networks. By
admin on
2025-02-17
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character.
491834
459466
E***t
Libyan Arab Jamahiriya
Verified
Purchase
5 .0
2026-05-04
The physical build quality is great. The duplex LC connector clicks into place firmly, and the module latch holds tight inside the SFP port without any loose play. Optical power insertion was smooth with plenty of link margin. (•‿•)
Please write comments with more than three
character.
491834
459470
E***n
Argentina
Verified
Purchase
5 .0
2026-03-27
We deployed a pair of these 1G 1530nm CWDM transceivers to connect our main office and remote facility over an 18km single-mode fiber span through an 8-channel passive multiplexer. The modules were recognized instantly with seamless compatibility, delivering stable gigabit throughput with plenty of optical link margin. Real-time DOM telemetry accurately tracked our transmit power and internal temperatures throughout our 48-hour testing phase without throwing any port errors. The link has been completely rock-solid in production carrying heavy daily traffic with zero packet drops.
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character.
491834
459479
E***n
Cambodia
Verified
Purchase
5 .0
2026-03-12
The digital optical monitoring is super handy. We can easily track real-time TX/RX optical power and module temperature right from our management interface. Operating temperatures have stayed perfectly cool and stable in our server rack.
Please write comments with more than three
character.
491834
459468
O***m
Maldives
Verified
Purchase
5 .0
2026-02-15
We run multiple data channels over a single fiber pair using passive CWDM multiplexing. This 1530nm SFP optical module slots right into our wavelength plan without causing any interference or crosstalk on neighboring optical ports.
Please write comments with more than three
character.
491834
459477
E***e
France
Verified
Purchase
4 .0
2026-01-20
Plugged right into our switch and passed traffic over 8km single-mode fiber without any manual configuration. The package was held up at regional customs for an extra two days, but the optics arrived in perfect working condition.
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character.
491834
459484
A***n
Germany
Verified
Purchase
5 .0
2026-01-07
We needed dedicated optical wavelengths to isolate independent client networks across a 12km industrial park fiber run, and this 1530nm SFP transceiver fit our channel plan perfectly. The duplex LC connectors lock firmly into place with low insertion loss, while the hardware supports standard Gigabit Ethernet protocols smoothly without any buffer issues. Real-time diagnostic data feeds directly into our central network management system for easy optical health tracking. After 2 weeks of continuous full-load operation, we have experienced zero link flapping and flawless overall uptime.
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491834
459481
S***d
Macao
Verified
Purchase
5 .0
2025-12-01
Ordered a batch of 20 modules for a regional network upgrade. Tested optical power levels across all of them before installation, and the transmitter output was remarkably consistent from unit to unit. Great factory quality control.
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491834
459476
A***d
Canada
Verified
Purchase
4 .0
2025-11-25
The transceiver delivers a rock-solid gigabit link through our CWDM Mux with accurate DDM readings. The 4-star rating is just because local courier delivery took one day longer than estimated. The product itself is 10/10!
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491834
459469
R***s
Brunei Darussalam
Verified
Purchase
5 .0
2025-09-06
We needed to add extra network capacity between two buildings without pulling new fiber lines. Slotted these 1530nm CWDM modules into our multiplexer over single-mode fiber, and the link came up instantly with strong signal levels. Clean and easy setup!
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491834
459471
A***d
Singapore
Verified
Purchase
5 .0
2025-08-23
To expand our network capacity without pulling extra fiber, we slotted these 1530nm 20km SFP optical modules into our standard CWDM grid across a multi-site fiber loop. Interoperability across our mixed switch setup was totally plug-and-play, locking in clean Gigabit Ethernet full-duplex links right out of the box. Optical isolation through our passive Mux filters is excellent with zero adjacent-channel crosstalk, and the modules remain cool even under sustained full line rate. If you need a stable, budget-friendly wavelength solution for multi-channel fiber setups, these modules deliver great value.
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491834
459480
E***t
Nepal
Verified
Purchase
5 .0
2025-07-22
Replaced our standard optics with these CWDM transceivers to free up wavelengths on our metro fiber ring. Latency is rock bottom, and our continuous traffic testing showed zero frame loss over several days of heavy load.
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491834
459478
W***r
Morocco
Verified
Purchase
5 .0
2025-06-01
Used a pair of these 1530nm SFP modules to link our off-site backup storage cluster over a 16km single-mode fiber run. The 20km power rating handles the distance with ease, maintaining full gigabit speeds during our nightly data syncs.
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491834
459467
H***e
United States
Verified
Purchase
5 .0
2025-02-08
Wavelength stability is critical in CWDM multiplexing systems, and this commercial-grade module performed reliably across a 14.7km single-mode fiber connection. The 1530nm laser source maintained clean optical output without wavelength drift or signal degradation during daily ambient temperature changes. Thanks to broad MSA hardware compliance, setup required zero custom firmware overrides or forced configuration commands on our edge switches. DOM power readings remain rock-steady, making this an ideal, worry-free transceiver for scalable fiber distribution.
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character.
491834
459482
W***t
Lithuania
Verified
Purchase
5 .0
2025-01-18
Installed a set of these for our remote tower backhaul through a standard CWDM grid. Even with day-and-night temperature swings in the cabinet, the 1530nm link has maintained zero packet loss and zero link flaps. Excellent reliability!
Australia · English · AUD
