For the SFP40K-CW1530 1530nm CWDM module, the optical design pairs a DFB laser with a PIN photodiode, both optimized for single-mode fiber operation over a maximum reach of 40km. Real-time DDM is implemented as a standard feature, offering dynamic readouts of five key diagnostic parameters without interrupting traffic. The module operates from a single 3.3 V supply, uses a standard LC duplex connector, and is specified for an operating temperature range of 0°C to 70°C.
HPE Part Number
SFP40K-CW1530
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1530nm
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/DOM Support
Yes
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of HPE SFP40K-CW1530 Compatible LINK-PP 1.25G SFP
HPE SFP40K-CW1530 Compatible LINK-PP module is a hot-pluggable 1G SFP transceiver that brings together CWDM wavelength assignment, extended 40 km reach, and real-time diagnostic functions. It supports standard duplex LC cabling and fully complies with the SFP MSA for seamless deployment in existing systems.
This SFP module features a hot-pluggable mechanical design and follows the SFP Multi-Source Agreement pinout and interface specifications. It can be inserted or removed while the host equipment remains powered, simplifying field maintenance.
SFP40K-CW1530: 1 Gbps Connectivity for Inter-building Trunk Connections
Operating at a line rate of 1Gb/s, this module delivers Gigabit Ethernet connectivity for trunk links that span between separate buildings. Its typical deployment includes campus or enterprise networks requiring point-to-point connections.
SFP40K-CW1530 Module with CWDM Technology for Fiber Efficiency
CWDM technology allows this module to operate on a specific wavelength channel within an 18-channel grid (1270-1610nm). By using different channels, multiple transceivers can share the same fiber pair, increasing overall link capacity without laying new cables.
SFP40K-CW1530 Module with 1530nm Wavelength
The selected 1530nm channel falls in the lower-loss region of standard single-mode fibers, which helps maintain signal integrity over long distances. This wavelength is also allocated for CWDM systems, ensuring compatibility with standard multiplexers.
SFP40K-CW1530 Module Supporting 40km Transmission
This transceiver is specified for fiber spans up to 40km, covering medium to long distance routes. Its optical power budget is designed to overcome the loss inherent in such long single-mode links.
SFP40K-CW1530 Module with Duplex LC Interface
Its duplex LC connector provides a secure, polarized connection for both transmit and receive fibers in one small footprint. This interface is widely adopted in patch panels and distribution frames, ensuring easy cable assembly.
SFP40K-CW1530 Module with DDM for Real-Time Monitoring
Internal digital diagnostic monitoring (DDM) function tracks operating temperature, supply voltage, laser bias current, and both TX/RX optical power. The module implements the SFF-8472 standard, allowing host systems to read these parameters via the I²C bus for proactive link management.
The SFP40K-CW1530 1G SFP optical transceiver holds major international safety and quality approvals, including ISO 9001, CE, RoHS, and FCC. These certifications ensure that the product meets high standards for performance, safety, and environmental protection.
Every module undergoes strict physical and performance testing before leaving the factory. This comprehensive process guarantees long-term stability and optimal efficiency in demanding network environments.
SFP40K-CW1530 Quality Certifications
Official compliance verifies that the transceiver meets international regulatory and technical standards. These recognized qualifications validate the module's adherence to required operational and safety guidelines.
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.
SFP40K-CW1530 Certified for Reliable Host-Device Compatibility
The transceiver is fully tested and verified to work seamlessly across a wide range of brand-name switches and routers. This ensures hassle-free plug-and-play integration into your existing network infrastructure.
Rigorous Testing Ensures Reliable SFP Performance
Every SFP40K-CW1530 SFP transceiver undergoes strict testing to ensure stable network performance. Discover our full validation process at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify optical wavelength and central peak power to meet optical standards.
Eye Pattern Test
Measure optical signal quality and noise margins to ensure clear transmission.
Bit Error Rate Test
Evaluate packet loss and transmission accuracy to maintain line-rate data stability.
Temperature Test
Monitor operational stability under extreme environmental conditions to verify heat tolerance.
Product Shipping for HPE SFP40K-CW1530 Compatible LINK-PP 1.25G SFP
Secure packaging protects every SFP40K-CW1530 1G SFP module during transit. Fast global dispatch ensures reliable and timely delivery.
Anti-Static Protective Packaging
Shield delicate electronic components against electrostatic discharge damage.
Shock-Resistant Transport Protection
Protect modules from physical impacts during transit handling.
Fast Order Processing and Dispatch
Prepare and ship orders quickly to shorten total delivery times.
Global Logistics and International Delivery
Transport shipments reliably across borders using trusted worldwide carriers.
To install the SFP40K-CW1530 1530nm CWDM module, insert it into an SFP port and connect duplex LC fiber to a CWDM Mux/Demux. This transceiver enables long-distance, high-capacity inter-building trunk connections, linking corporate data centers and enterprise campuses efficiently over single-mode fiber infrastructure.
SFP40K-CW1530 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 SFP40K-CW1530 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, 1530nm is precisely aligned with the standard ITU-T CWDM grid. This module features a precision DFB laser and works seamlessly with standard passive CWDM Mux/Demux units, ensuring excellent channel isolation and minimal adjacent-channel crosstalk. By
admin on
2026-05-22
A:
Yes, the LS-CW531G-40C SFP module supports 1.063Gbps Fibre Channel as well as 1.25Gbps optical links. It provides stable, low-latency transmission for off-site storage replication and long-haul backup links up to 40km. By
admin on
2026-03-06
A:
Yes, the module features low power consumption on a standard +3.3V supply and dissipates heat very efficiently. As long as your rack cabinet maintains standard indoor data center airflow, the internal temperature will remain well within the 0°C to +70°C range. By
admin on
2025-12-23
A:
This module requires standard single-mode fiber terminated with a duplex LC connector. It offers an optical budget sufficient for links up to 40km; for your 30km run, please verify that your total end-to-end link loss (including splices and patch panels) does not exceed the module's maximum loss budget. By
admin on
2025-07-14
A:
Yes, we provide tiered discounts for high-density optical transceiver deployments. Simply contact our sales team with your estimated module count to receive a customized volume quotation for your network buildout. By
admin on
2025-03-21
Running a 36km link to a remote site with these1G CWDM modules. The PIN receiver is plenty sensitive for our budget and the link has been rock solid for three months now. No CRC errors on the switch side. Great little workhorse.
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492306
455996
G***e
France
Verified
Purchase
5 .0
2026-05-11
We slotted this unit into our multi-channel CWDM passive Mux for long-reach inter-building routing. Real-time DDM telemetry accurately outputs Tx power and temperature stats straight to our SNMP monitoring dashboard. Very stable hardware.
Please write comments with more than three
character.
492306
455989
B***h
New Zealand
Verified
Purchase
5 .0
2026-05-02
We installed these optical modules in our distribution racks to link multiple remote municipal facilities over a 30km single-mode fiber run. The physical build quality is excellent, and the duplex LC interface clicks into place securely with no loose play. We conducted several failover drills and reboot cycles during scheduled maintenance, and the transceivers re-established the gigabit link within seconds every single time. It is great to find commercial-grade optics that deliver this level of long-term reliability and straightforward plug-and-play operation for regional enterprise links.
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character.
492306
455997
M***e
Netherlands
Verified
Purchase
5 .0
2026-03-21
Swapped out our exhausted direct-fiber patch cords with an 8-channel Mux setup, and this 1530nm module handled the longest 35km link seamlessly. Rx optical power settled comfortably at -16 dBm. Very satisfied with the build quality.
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character.
492306
455991
D***e
Poland
Verified
Purchase
5 .0
2026-03-04
We run a regional ISP and use these for base station backhaul aggregation. The 1530nm channel is one of eight CWDM wavelengths in our Mux, and this module has been the most stable of the lot. I checked the transmit and receive power against our optical test gear and everything was well within spec. The SFP MSA compliance means they work in every brand of switch we've thrown at them, from core to access. DDM data is clean and consistent, which makes fault isolation way easier. We've ordered three batches now and QC has been flawless across all of them. If you need a dependable 40km 1G CWDM SFP for carrier-style links, this is it.
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character.
492306
455986
O***t
United Kingdom
Verified
Purchase
5 .0
2025-12-04
Deployed these 1530nm 40km transceivers across an expanded municipal Ethernet ring. The duplex LC connectors seat firmly with a satisfying click, and the optical link budget easily covers our 31km span with plenty of headroom remaining. Highly recommend for regional network upgrades!
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character.
492306
455988
E***k
Austria
Verified
Purchase
5 .0
2025-11-28
I'm a network engineer and I run a fleet of these across a multi-building campus. I bought a batch for a fiber backbone refresh and tested every single one before deployment. All of these 1G CWDM modules passed our signal quality and error-rate checks, and the DDM telemetry matched our reference equipment — the transmit and receive power readings were spot on. The 1530nm CWDM wavelength fits perfectly into our existing Mux/Demux plan, so I didn't have to touch the passive infrastructure. Two months in, not one module has failed or dropped the link. For the price per unit, this is the best value 40km SFP I've deployed this year.
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character.
492306
455982
F***m
Thailand
Verified
Purchase
5 .0
2025-10-23
Using them for a small campus fiber backbone. The SFF-8472 DDM gives us real-time TX/RX power, which saved us once when a dirty connector showed up in the readings before it became a problem. Solid value for a 40km single-mode module.
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character.
492306
455995
N***e
Finland
Verified
Purchase
4 .0
2025-09-17
Solid wavelength stability and immediate link-up on our inter-building fiber loop. The only slight inconvenience was that international customs cleared the parcel two days later than estimated, which slightly delayed our maintenance schedule. Great SFP modules otherwise!
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character.
492306
456001
C***s
Spain
Verified
Purchase
5 .0
2025-09-02
Clean eye-diagram performance and very tight wavelength stability at 1530nm. We stress-tested the link for 48 continuous hours using an RFC 2544 traffic generator, and it maintained zero dropped frames throughout.
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492306
455985
Q***r
Norway
Verified
Purchase
5 .0
2025-07-25
Used these CWDM modules to tie remote outdoor IP surveillance nodes back to the central security server room over a 29km perimeter fiber path. The duplex LC interface has zero optical reflection issues and locks tight.
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character.
492306
455993
V***g
Canada
Verified
Purchase
5 .0
2025-06-30
These SFP CWDM modules solved our fiber scarcity issue between two branch data closets located 30km apart. Both channels lit up immediately across our single-mode backbone with zero CRC errors or frame loss under heavy peak loads.
Please write comments with more than three
character.
492306
455990
L***g
Romania
Verified
Purchase
4 .0
2025-05-03
The module linked up instantly at 1530nm with zero issues, but the shipping carrier was delayed by two days during transit. Luckily, the packaging kept everything safe.
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character.
492306
455984
P***s
Belgium
Verified
Purchase
5 .0
2025-04-07
We integrated several of these transceivers into our SAN and off-site backup system linking two facilities located across the metro area. The hot-pluggable design let us install the modules during live production hours without causing any service interruptions or switch reboots. Real-time diagnostic monitoring works smoothly in our network dashboard, and latency over the 34km line has stayed consistently low with zero packet jitter. For enterprise teams looking to maximize their fiber assets without unnecessary complexity, these modules are a top-notch choice.
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character.
492306
455998
F***t
Philippines
Verified
Purchase
5 .0
2025-02-28
Ordered an initial batch of 10 units for our metro fiber ring upgrade. Every single transceiver passed our testing with exact optical center wavelengths before deployment. Exceptional QA standards. (•̀ᴗ•́)
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