EX-SFP-GE40KCW1370 operates as a 1370nm CWDM SFP module, delivering 1.25Gbps data throughput via its internal DFB laser and PIN photodiode. This module achieves reach up to 40km on single-mode fiber and features built-in real-time digital diagnostic monitoring for optical power, bias current, supply voltage, and temperature. Its specified operating temperature spans 0°C to +70°C.
Juniper Part Number
EX-SFP-GE40KCW1370
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1370nm
Max Cable Distance
40km
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 Juniper EX-SFP-GE40KCW1370 Compatible LINK-PP 1.25G SFP
Juniper EX-SFP-GE40KCW1370 Compatible LINK-PP module is a commercial-grade 1G SFP optical transceiver with a 1370nm CWDM wavelength. It supports 40km transmission over single-mode fiber through a duplex LC interface and includes DDM functions with SFF-8472 for real-time link supervision. This module is well suited for metro access and FTTx backhaul networks, offering reliable 1Gbps connectivity while maximizing fiber usage via CWDM channelization.
This module follows a hot-pluggable SFP footprint and fully complies with SFP MSA standards. It enables easy installation and replacement without powering down the host system.
EX-SFP-GE40KCW1370: 1 Gbps Connectivity for FTTx Backhaul
It operates at a 1Gbps data rate, suitable for FTTx backhaul and point-to-point Ethernet links. The speed ensures stable throughput for access network aggregation and last-mile connectivity.
EX-SFP-GE40KCW1370 Module with CWDM Technology for Fiber Efficiency
CWDM technology allows this module to use a specific 1370nm channel within a coarse wavelength division multiplexing grid. It helps maximize fiber utilization by enabling multiple wavelengths on a single fiber pair.
EX-SFP-GE40KCW1370 Module with 1370nm Wavelength
The transmitter is centered at 1370nm, which falls in the CWDM spectrum band. This wavelength choice supports efficient transmission over standard G.652 single-mode fiber with low dispersion.
The module supports link distances up to 40km over single-mode fiber. This reach is ideal for metropolitan area networks and remote backhaul applications.
EX-SFP-GE40KCW1370 Module with Duplex LC Interface
A duplex LC connector provides separate transmit and receive ports on the module. This interface ensures simple and secure fiber plug-in for standard network equipment.
EX-SFP-GE40KCW1370 Module with DDM for Real-Time Monitoring
Digital Diagnostic Monitoring (DDM) is implemented, compatible with SFF-8472. It offers real-time access to parameters such as operating temperature, supply voltage, laser bias current, and optical power for link health management.
The EX-SFP-GE40KCW1370 CWDM optical module strictly follows international standards to guarantee high quality and safety. It is fully certified with ISO 9001, CE, RoHS, and FCC compliance for reliable performance.
Every transceiver undergoes rigorous testing, including optical spectrum checks and bit error rate verification. This comprehensive program ensures high stability and error-free data transmission before shipment.
EX-SFP-GE40KCW1370 Quality Certifications
Official industry qualifications confirm that this product meets high safety and environmental standards. These certifications ensure that each module delivers long-lasting and consistent performance in network operations.
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.
EX-SFP-GE40KCW1370 Certified for Reliable Host-Device Compatibility
This CWDM module is thoroughly tested across various brand switches and routers to guarantee seamless plug-and-play operation. It ensures stable communication and strong data link connectivity with your host equipment.
Rigorous Testing Ensures Reliable SFP Performance
Every EX-SFP-GE40KCW1370 1G SFP module undergoes thorough testing to verify signal integrity and long-term stability. To see our complete testing methodology, discover more details at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength precision and optical spectral width performance.
Eye Pattern Test
Analyze signal transmitter clarity to ensure optimal waveform quality.
Bit Error Rate Test
Measure data transmission accuracy for completely error-free network links.
Temperature Test
Validate operational stability across demanding thermal environmental range conditions.
Product Shipping for Juniper EX-SFP-GE40KCW1370 Compatible LINK-PP 1.25G SFP
Each EX-SFP-GE40KCW1370 1G SFP transceiver is carefully packaged and processed to ensure maximum safety during transit. Reliable global logistics partners deliver your orders quickly and securely to destination sites.
Anti-Static Protective Packaging
Protect optical modules against electrostatic discharge damage during handling.
Shock-Resistant Transport Protection
Shield physical components from impact damage throughout the journey.
Fast Order Processing and Dispatch
Accelerate order fulfillment to ensure prompt warehouse shipment dispatch.
Global Logistics and International Delivery
Provide dependable international shipping to destinations worldwide without delay.
Mount the EX-SFP-GE40KCW1370 1G CWDM module into standard switch SFP slots to connect optical multiplexers seamlessly. Operating at a precise 1370nm CWDM wavelength, it simplifies deployment for telecom operators and ensures high-performance connectivity within FTTx backhaul networks and distributed access node links.
EX-SFP-GE40KCW1370 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 EX-SFP-GE40KCW1370 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-CW371G-40C module supports data rates up to 1.25Gbps, providing complete protocol compatibility for Gigabit Ethernet, 1.063Gbps Fibre Channel, and other optical systems. By
admin on
2026-04-11
A:
No, the built-in DFB laser operates with high spectral purity and adheres to standard 20nm CWDM channel isolation, ensuring zero optical crosstalk with your existing legacy 1310nm or 1550nm traffic. By
admin on
2026-01-29
A:
Yes, the module is fully compliant with the ITU-T G.694.2 standard 20nm grid spacing and features a standard duplex LC interface optimized for single-mode fiber, ensuring seamless physical and optical interface matching, allowing your passive Mux to maintain its specified low-insertion-loss performance. By
admin on
2025-11-20
Please write comments with more than three
character.
492094
457955
O***s
United Kingdom
Verified
Purchase
4 .0
2026-01-22
Running this over a 30km single-mode link, throughput is rock solid with zero frame errors. The package arrived with the outer packing tape partially torn on one side from rough transit handling. The inner packaging kept the optic safe, but stronger tape is needed.
Please write comments with more than three
character.
492094
457966
T***n
Lithuania
Verified
Purchase
5 .0
2025-11-05
Built a multi-channel CWDM test rig in our networking lab to simulate metro-edge routing. The 1370nm channel performed predictably across variable optical attenuators up to a 15 dB link budget. Good retention clip and sturdy metal housing.
Please write comments with more than three
character.
492094
457962
R***n
Israel
Verified
Purchase
5 .0
2025-10-15
Instead of trenching expensive single-mode fiber cables across our industrial park, we multiplexed 8 gigabit links over one dual-SMF run. This 1370nm 40km SFP locked in immediately on our platforms. DDM temperature and voltage tracking work smoothly via SNMP.
Please write comments with more than three
character.
492094
457958
E***e
Argentina
Verified
Purchase
5 .0
2025-10-01
Deployed this 1370nm CWDM 40km SFP on an aggregation link connecting our central distribution point to a suburban tower site over OS2 fiber. Throughput tests delivered clean wire-speed performance with zero packet drops during peak traffic hours. The optical receiver sensitivity is impressive, easily overcoming our MUX insertion loss with plenty of link margin left over. SNMP monitoring pulled optical power and temperature stats automatically without extra configuration. A great cost-effective transceiver for service providers.
Please write comments with more than three
character.
492094
457953
Y***p
Bulgaria
Verified
Purchase
5 .0
2025-08-21
DDM support was our biggest requirement for remote diagnostics. Through the switch's CLI, we get exact laser bias current and received power readings. Makes troubleshooting dirty patch cables so much faster. A must-have for managed network ops!
Please write comments with more than three
character.
492094
457964
J***t
Belarus
Verified
Purchase
5 .0
2025-06-04
Ordered 12 units for our regional university campus backbone upgrade. Every CWDM SFP transceiver arrived sealed in static-shielding packaging. Tested all 12 modules on a test bench — 0 DOA, 100% wavelength compliance on our optical spectrum analyzer. Great batch consistency!
Please write comments with more than three
character.
492094
457960
O***s
Bangladesh
Verified
Purchase
5 .0
2025-05-27
We installed this 1370nm CWDM module to link our main data center with an annex building roughly 35km away over standard single-mode fiber. The 40km optical power budget handled our patch panel splice loss easily, and the link negotiated instantly at 1.25Gbps. DDM diagnostics gave us accurate, real-time Tx and Rx power readouts right from our switch dashboard. It has been running continuously for two months without a single drop or frame error. Truly dependable optics for long-range building-to-building setups.
Please write comments with more than three
character.
492094
457954
W***s
Cambodia
Verified
Purchase
5 .0
2025-04-16
Configured a dedicated SAN storage replication link over a 28km dark fiber run using these 1G CWDM modules. Throughput is completely saturated at wire speed with no packet drops or latency spikes. Standard duplex LC connectors fit snugly with our existing patch cords. Highly recommended!
Please write comments with more than three
character.
492094
457961
C***d
United States
Verified
Purchase
5 .0
2025-03-19
Network engineer here — I've been running a pair of these 1G CWDM SFP transceivers on a 36km dark fiber link between two sites for about 2 months. The 1370nm CWDM channel sits clean in our wavelength plan, and the DFB laser holds TX power steady around -2dBm. DDM via SFF-8472 reports real-time temperature, bias current, supply voltage, and optical power, all within spec. Eye pattern and BER checks came back clean, no CRC errors on either end. For 1G single mode at this price point, these are genuinely solid.
Australia · English · AUD
