The CWDM-SFP-1430-20 optical transceiver module delivers data rates up to 1.25Gbps over a 1430nm CWDM channel, pairing a DFB laser with a PIN photodetector. It enables seamless single-mode fiber link extensions up to 20km while incorporating built-in real-time digital diagnostic monitoring to maintain optimal commercial operating conditions from 0 to +70°C.
Cisco Part Number
CWDM-SFP-1430-20
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1430nm
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 Support
Yes
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of Cisco CWDM-SFP-1430-20 Compatible LINK-PP 1.25G SFP
Cisco CWDM-SFP-1430-20 Compatible LINK-PP delivers a robust 1G CWDM optical solution with integrated digital diagnostics and a duplex LC interface for single-mode fiber links. Designed for commercial operating environments, this module combines efficient 1430nm laser technology with reliable 20km transmission capability to support enterprise interconnects.
Designed with a hot-pluggable SFP footprint, this optical transceiver allows straightforward insertion and removal without interrupting operational switch chassis power. Full compliance with the standard SFP Multi-Source Agreement (MSA) guarantees broad interoperability across vendor-neutral networking hardware.
CWDM-SFP-1430-20: 1 Gbps Connectivity for Point-to-Point Fiber Span
Delivering line rates up to 1.25Gbps, this optical module provides stable Gigabit Ethernet throughput across dedicated point-to-point connections. It supports reliable data transport for campus backbones, remote node aggregation, and intermediate enterprise switch uplinks.
CWDM-SFP-1430-20 Module with CWDM Technology for Fiber Efficiency
Coarse Wavelength Division Multiplexing (CWDM) technology enables multiple data streams to traverse a single optical fiber pair over distinct channels. This multiplexing approach allows network administrators to expand total link capacity without the high cost of laying additional fiber cables.
CWDM-SFP-1430-20 Module with 1430nm Wavelength
Operating on a fixed 1430nm optical channel, this transceiver utilizes a specialized CWDM DFB laser to ensure precise central wavelength stability. It seamlessly integrates into standard ITU-T G.694.2 wavelength grids for structured multi-channel optical networks.
A high-sensitivity PIN photodetector combined with optimized optical launch power supports continuous single-mode fiber links spanning up to 20km. This extended reach accommodates inter-building connections, metro access rings, and geographically dispersed equipment distribution.
CWDM-SFP-1430-20 Module with Duplex LC Interface
The industry-standard duplex LC connector format establishes a compact, secure optical interface for high-density patch panel termination. Its precision latching mechanism prevents accidental disconnections while ensuring minimal optical insertion loss at the physical layer.
CWDM-SFP-1430-20 Module with DDM for Real-Time Monitoring
Real-time DDM monitoring capability continuously tracks critical operating parameters such as optical power, operating temperature, laser bias current, and supply voltage. Through full alignment with SFF-8472 diagnostic standards, host switches can perform automated telemetry polling to identify potential network issues before link failures occur.
Cisco CWDM-SFP-1430-20 Compatible LINK-PP complies with strict international quality and safety standards, holding ISO 9001, CE, RoHS, and FCC certifications. These credentials verify that every optical transceiver meets rigorous environmental, electromagnetic compatibility, and manufacturing requirements.
Every optical transceiver undergoes comprehensive factory testing to verify optical wavelength accuracy, bit error rate, and signal integrity before shipping. This structured quality screening guarantees consistent physical layer performance under real-world commercial operation.
CWDM-SFP-1430-20 Quality Certifications
Global regulatory approvals verify compliance with environmental safety standards and electromagnetic interference limits. These certified standards allow deployment across standard enterprise networking systems without violating operational security policies.
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-1430-20 Certified for Reliable Host-Device Compatibility
Extensive switch EEPROM coding and interoperability validation ensure smooth plug-and-play recognition across multiple vendor switch platforms. Network switches can instantly recognize the module without triggering software warnings or port configuration errors.
Rigorous Testing Ensures Reliable SFP Performance
Every CWDM-SFP-1430-20 CWDM SFP module undergoes comprehensive quality validation to guarantee physical layer stability and signal integrity. To learn more about our testing standards and validation procedures, visit the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength precision and optical spectral width.
Eye Pattern Test
Analyze optical signal quality and eye diagram opening.
Bit Error Rate Test
Confirm data transmission accuracy and zero frame loss.
Temperature Test
Assess operational stability across standard temperature ranges.
Product Shipping for Cisco CWDM-SFP-1430-20 Compatible LINK-PP 1.25G SFP
Each CWDM-SFP-1430-20 1G SFP optical transceiver is securely packaged and processed to guarantee safe transit and timely arrival. Our logistics operations support fast order fulfillment and dependable international shipping worldwide.
Anti-Static Protective Packaging
Prevent electrostatic discharge damage during transit and storage.
Shock-Resistant Transport Protection
Safeguard internal optical components against physical shipping impacts.
Fast Order Processing and Dispatch
Accelerate order fulfillment for rapid network deployment schedules.
Global Logistics and International Delivery
Deliver optical modules worldwide using reliable express freight carriers.
Deploying the CWDM-SFP-1430-20 module in point-to-point topologies requires aligning its 1430nm channel with matching CWDM multiplexers. Simply seat the hot-pluggable SFP into a compatible switch slot and attach duplex LC single-mode patch cords to enable long-reach 1.25Gbps campus backbones up to 20km.
CWDM-SFP-1430-20 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-1430-20 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, the LS-CW431G-20C module features a standard hot-pluggable SFP footprint. You can insert or remove it from the switch port while the device is powered on without needing to reboot the switch or interrupt neighboring network traffic. By
admin on
2026-03-18
A:
This transceiver supports data rates up to 1.25Gbps. It is suitable for Gigabit Ethernet (1.25Gbps) networks, 1.063Gbps Fiber Channel SAN links, and other point-to-point single-mode optical systems that operate within this speed range. By
admin on
2026-01-04
A:
You need a single-mode fiber patch cord equipped with a duplex LC connector. When used with single-mode fiber, the built-in CWDM DFB laser and PIN receiver support stable optical transmission up to 20km (about 12.4 miles). By
admin on
2025-10-09
A:
The transmitter utilizes a DFB laser adhering to the ITU-T G.694.2 CWDM grid with a central wavelength tolerance of ±3nm across the full 0 to 70°C operating temperature range. When used with a standard 20nm-spaced CWDM passive Mux (with a typical passband of ±6.5nm or wider), the module achieves adjacent channel isolation of >30dB, ensuring extremely low inter-channel crosstalk. By
admin on
2025-05-15
A:
No extra setup is needed. The module runs on a standard single +3.3V DC power feed directly from the SFP port cage, ensuring low power consumption and full compliance with standard network hardware power delivery. By
admin on
2025-02-19
Got a batch of these CWDM SFP modules for a remote network expansion project. They slid right into the 1G slots, standard coding was accepted immediately, and we were passing traffic over the 1430nm channel on SMF within minutes. Very straightforward installation!
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491776
461903
J***z
India
Verified
Purchase
5 .0
2026-06-07
Rolled out several of these CWDM modules across multiple office buildings spanning 5km to 15km on single-mode fiber. Every unit connected at full 1.25Gbps speed without losing a single packet. Having live optical telemetry makes checking fiber health from our management console super simple.
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character.
491776
461904
A***n
Libyan Arab Jamahiriya
Verified
Purchase
5 .0
2026-03-15
Swapped out older standard optics for these CWDM optical modules across multiple switch models in our lab. Standard compliance is spot on, recognized instantly without manual command tweaks. Good receiver overload tolerance made short patch testing completely safe. Highly recommend.
Please write comments with more than three
character.
491776
461912
D***z
Poland
Verified
Purchase
5 .0
2026-02-21
Upgraded our perimeter surveillance link over an 11km fiber run. The receiver pulls plenty of optical light, keeping high-def video streams uninterrupted.
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character.
491776
461907
C***z
Italy
Verified
Purchase
4 .0
2026-01-29
Optical transmission and 1430nm wavelength accuracy are great over our 16km line, but the outer packaging box was slightly dented during shipping. Optic was well-cushioned inside and works fine, but better outer boxes would help.
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491776
461915
A***n
New Zealand
Verified
Purchase
5 .0
2026-01-14
Added this 1430nm CWDM module to multiplex another gigabit link over an existing fiber line. Diagnostic reporting works smoothly on our aggregation switch.
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character.
491776
461898
J***s
Thailand
Verified
Purchase
5 .0
2025-11-03
Mounted inside an outdoor roadside cabinet for remote monitoring gear. Despite large temperature swings between night and day, the optic stayed completely stable. The 20km reach leaves plenty of signal margin to handle older splices and patch cable loss ;)
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491776
461911
J***n
Finland
Verified
Purchase
5 .0
2025-10-02
Connected two warehouse buildings over an 18km single-mode fiber line with these modules. The 1.25Gbps link synced up immediately without dropping frames, and optical levels are right where they should be. Very dependable optical transceiver!
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491776
461900
N***n
Morocco
Verified
Purchase
5 .0
2025-09-08
Multiplexed a dedicated backup channel alongside our main data lines over a 14km single-mode run. Optical loss through the filters was minimal, leaving plenty of power cushion. System has been transferring multi-terabyte data batches daily without a hitch.
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character.
491776
461914
N***a
Belgium
Verified
Purchase
5 .0
2025-08-31
We ran a continuous 48-hour data test over a 16km fiber run through our passive multiplexer. The optical output remained steady, and receiver sensitivity stayed well above minimum thresholds. Real-time DDM readings matched our handheld light meter closely. Seamless setup and rock-solid uptime :-D
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491776
461908
B***s
Brazil
Verified
Purchase
5 .0
2025-07-17
We used these duplex LC single-mode transceivers to expand our outdoor camera network. The laser holds the signal steady even in summer heat inside the cabinet :)
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491776
461897
J***r
Nepal
Verified
Purchase
5 .0
2025-04-12
Replaced an older failing module with this 1430nm 1G CWDM SFP, and our link jitter disappeared immediately. Optical eye pattern looks sharp and clean. Diagnostic data reports internal temperature and power directly to our monitoring system. Zero packet drops during peak hours!
Please write comments with more than three
character.
491776
461913
A***r
Hungary
Verified
Purchase
5 .0
2025-02-16
Great option for expanding fiber capacity. Module clicks firmly into the port, duplex LC patch cords snap tight, and signal meters match factory specs.
Please write comments with more than three
character.
491776
461905
M***l
Indonesia
Verified
Purchase
5 .0
2025-01-25
Expanding our branch uplink required adding another gigabit channel over an existing fiber strand. This 1430nm SFP module slotted straight into our multiplexer without interfering with adjacent channels. The housing stays cool under heavy traffic, and digital diagnostics display optical power clearly :)
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