CWDM-SFP-1370-20 CWDM SFP module delivers data transmission rates up to 1.25Gbps at a 1370nm wavelength over single-mode fiber reaches of up to 20km. It integrates a DFB laser transmitter, a PIN photodiode receiver, and built-in digital optical monitoring (DOM) supporting operating temperatures from 0 to +70°C.
Extreme Part Number
CWDM-SFP-1370-20
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1370nm
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-1370-20 Compatible LINK-PP 1.25G SFP
Extreme CWDM-SFP-1370-20 Compatible LINK-PP SFP module combines standardized optical hardware, dedicated wavelength routing, and long-range connectivity into a unified transceiver design. It integrates precision digital diagnostics and fiber-saving multiplexing capabilities to streamline single-mode network operations.
This module features a hot-pluggable SFP footprint that allows seamless installation without powering down host switches. Full compliance with the SFP Multi-Source Agreement (MSA) ensures broad interoperability across standard network equipment ports.
CWDM-SFP-1370-20: 1 Gbps Connectivity for Fiber Expansion & Mux Systems
Data transmission delivers a 1Gbps line rate to satisfy bandwidth demands across enterprise backbones. This throughput level makes it well-suited for interconnecting distribution switches, edge routers, and CWDM multiplexer channels.
CWDM-SFP-1370-20 Module with CWDM Technology for Fiber Efficiency
Coarse Wavelength Division Multiplexing splits individual data channels across shared fiber pairs to maximize existing infrastructure capacity. Network operators can significantly scale overall bandwidth without the high cost of laying new optical cabling.
CWDM-SFP-1370-20 Module with 1370nm Wavelength
A dedicated 1370nm operating channel provides accurate spectral spacing to prevent optical crosstalk in multi-channel configurations. The integrated CWDM DFB laser delivers stable spectral output to maintain clean optical signal pathways.
Long-distance reach spans up to 20km over standard single-mode fiber using an internal PIN photodetector. This extended optical power budget easily bridges wide campus networks and metro access distribution links.
CWDM-SFP-1370-20 Module with Duplex LC Interface
The industry-standard duplex LC optical connector provides a secure physical interface with low insertion loss. Its standardized latching mechanism ensures reliable dual-fiber coupling and simple patch cable management.
CWDM-SFP-1370-20 Module with DOM for Real-Time Monitoring
Digital Optical Monitoring (DOM) compliant with SFF-8472 enables continuous tracking of optical power, operating temperature, bias current, and supply voltage. Network administrators can leverage these internal diagnostics to detect fiber anomalies and prevent link failures.
Extreme CWDM-SFP-1370-20 Compatible LINK-PP module adheres to stringent international manufacturing standards, holding ISO 9001, CE, RoHS, and FCC certifications. These credentials confirm full regulatory compliance, environmentally safe materials, and robust electromagnetic compatibility across all deployments.
Every 1G CWDM SFP transceiver undergoes rigorous factory testing, including real-time bit error rate validation and continuous optical power stability checks. Simulated thermal cycling confirms the module maintains consistent signal integrity throughout its entire operational lifecycle.
CWDM-SFP-1370-20 Quality Certifications
Strict adherence to global industry benchmarks guarantees that optical hardware assemblies fulfill standardized safety and environmental directives. These formal validations provide network engineers with verified build quality and long-term hardware reliability.
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-1370-20 Certified for Reliable Host-Device Compatibility
Comprehensive multi-vendor switch testing verifies that the EEPROM configuration and physical connector interface integrate seamlessly with standard host ports. This hardware qualification prevents link dropouts, module-recognition errors, and port configuration faults during live network operation.
Rigorous Testing Ensures Reliable SFP Performance
Each CWDM-SFP-1370-20 CWDM SFP module undergoes comprehensive performance validation to guarantee stable signal transmission and long-term hardware reliability. To explore our complete quality assurance processes, visit the LINK-PP Test Support Center.
Optical Spectrum Test
Verify center wavelength accuracy and spectral width for stable transmission.
Eye Pattern Test
Analyze optical waveform clarity and jitter to ensure signal integrity.
Bit Error Rate Test
Measure data transmission accuracy to eliminate packet loss during operation.
Temperature Test
Evaluate thermal stability across changing environments to ensure continuous operation.
Product Shipping for Extreme CWDM-SFP-1370-20 Compatible LINK-PP 1.25G SFP
Extreme CWDM-SFP-1370-20 Compatible LINK-PP SFP optical modules follow a standardized shipping process that protects optical components from factory to site. A streamlined fulfillment system moves shipments efficiently through international customs to keep deployment schedules on track.
Anti-Static Protective Packaging
Shield internal optical electronics from hazardous electrostatic build-up during handling.
Shock-Resistant Transport Protection
Mitigate road vibration and physical drops to safeguard optical alignment.
Fast Order Processing and Dispatch
Fulfill warehouse inventory quickly to accelerate outbound freight handover times.
Global Logistics and International Delivery
Manage customs clearance and freight routes for reliable cross-border transit.
Insert CWDM-SFP-1370-20 1G CWDM module directly into the SFP slot, then connect a duplex LC single-mode patch cord to the designated 1370nm port on your CWDM MUX/DEMUX panel. This plug-and-play setup expands aggregate fiber capacity without requiring additional physical cabling.
CWDM-SFP-1370-20 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-1370-20 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. We can pre-program the module’s firmware to match Cisco, Juniper, or other major brands before shipping. This ensures the module presents the correct vendor ID and part number, so your switches recognize it as a compatible optic without alarms. By
admin on
2026-04-16
A:
No. As long as your MUX/DEMUX includes a dedicated 1370nm channel port following the standard ITU-T G.694.2 CWDM grid (20nm spacing), the built-in CWDM DFB laser provides a precise central wavelength to enable clean pass-through and low adjacent-channel crosstalk. By
admin on
2026-01-22
A:
Yes. It supports standard SFF-8472 digital diagnostics with preset high/low threshold limits. Your switch can read real-time TX/RX power levels and can flag a warning before the 20km link drops, helping you catch dirty fiber or signal degradation early. By
admin on
2025-11-07
A:
It connects directly. The module features a standard duplex LC interface and is designed specifically for single-mode fiber. Simply run your standard LC duplex patch cord into the module and into your CWDM MUX/DEMUX. By
admin on
2025-09-13
A:
It supports both. In addition to standard 1.25Gbps Gigabit Ethernet, it fully supports 1.063Gbps Fiber Channel for storage networks. By
admin on
2025-06-20
Please write comments with more than three
character.
491742
462589
D***x
India
Verified
Purchase
5 .0
2025-10-24
Excellent solution for expanding channel capacity on our corporate fiber pair. Adding this 1370nm CWDM SFP allowed us to run an extra gigabit line without pulling new fiber lines through the building risers. Smooth installation and zero downtime during rollout.
Please write comments with more than three
character.
491742
462592
E***s
Israel
Verified
Purchase
5 .0
2025-08-27
We installed these 1G CWDM 20km SFP modules to link two enterprise buildings across a corporate business park. The single-mode fiber connection established right away, and the built-in DOM allows our IT team to monitor light levels directly through our web interface. Excellent stability for daily business traffic.
Please write comments with more than three
character.
491742
462596
J***s
Belarus
Verified
Purchase
4 .0
2025-07-18
This 1.25G CWDM SFP works well with our passive mux system. Shipping was a little slower during customs processing, but the item arrived protected and linked up right away.
Please write comments with more than three
character.
491742
462600
C***n
United States
Verified
Purchase
5 .0
2025-04-06
Upgraded our internal office network backbone using these 1370nm SFP transceivers. Linking our central server room to the administrative wing over single-mode fiber was seamless. Transmission is clear, latency is minimal, and we saw no dropped frames during our routine file transfers :-D
Please write comments with more than three
character.
491742
462594
J***s
United States
Verified
Purchase
5 .0
2025-02-27
Excellent optical module for extending Gigabit Ethernet over a CWDM channel. The 1370nm wavelength fit our passive mux plan, while the 20km reach gave us enough margin for a suburban office link.
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