The LINK-PP LS-CW571G-80C 1G SFP transceiver delivers stable 1.25 Gbps data transmission over single-mode fiber at distances of up to 80 km, operating at the 1570 nm CWDM wavelength. It is designed to support long-range Gigabit connectivity with dependable optical performance.
LINK-PP Part Number
LS-CW571G-80C
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1570nm
Max Cable Distance
80km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-1 to +4dBm
RX Power
-26 to -1dBm
Receiver Sensitivity
-26dBm
DDM/DOM
Supported
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of LINK-PP LS-CW571G-80C 1G SFP
The LINK-PP LS-CW571G-80C 1G SFP module offers true plug-and-play deployment and dependable long-distance transmission. Featuring a duplex LC interface, CWDM technology, and integrated DDM functionality, it provides a practical solution for Gigabit network expansion. This module helps optimize fiber utilization while maintaining consistent signal quality across extended distances.
LINK-PP LS-CW571G-80C 1G SFP Optical Module
The combination of a CWDM DFB laser and a high-sensitivity PIN photodetector reduces attenuation while ensuring stable performance for strong optical output and reliable signal reception over long-haul fiber links.
LS-CW571G-80C: Reliable 1.25 Gbps Connectivity for Network Expansion
The LINK-PP LS-CW571G-80C 1G SFP module supports both Gigabit Ethernet and 1G Fibre Channel applications, making it ideal for enterprise networks, service provider infrastructure, and metro access deployments. It enables you to increase your bandwidth without making your network more complex.
LS-CW571G-80C Module with CWDM Technology for Fiber Efficiency
With Coarse Wavelength Division Multiplexing (CWDM), multiple optical signals can be transmitted over a single fiber strand using different wavelengths. This significantly increases fiber utilization while decreasing the need for additional cabling.
LS-CW571G-80C Module with 1570nm Wavelength
With an operating wavelength of 1570 nm, this LINK-PP LS-CW571G-80C module benefits from a low-loss transmission window. This reduces signal degradation over long distances, ensuring consistent and stable optical performance.
LS-CW571G-80C Module Supporting 80km Transmission
The LINK-PP LS-CW571G-80C transceiver module, which supports transmission distances of up to 80 km over standard single-mode fiber, is ideal for long-distance deployments like campus backbones, metro aggregation, and industrial networking environments.
LS-CW571G-80C Module with Duplex LC Interface
The LS-CW571G-80C module’s duplex LC interface makes installation quick and simple, requiring no specialized tools. It seamlessly integrates into the existing fiber infrastructure, making upgrades and maintenance easier.
LS-CW571G-80C Module with DDM for Real-Time Monitoring
Real-time Digital Diagnostic Monitoring (DDM) enables the proactive tracking of module health and optical output, facilitating more efficient network maintenance and troubleshooting.
LINK-PP LS-CW571G-80C 1G SFP Certification
Every LINK-PP optical module meets ISO 9001 quality benchmarks and is officially certified by CE, RoHS, and FCC for international safety, sustainability, and compliance.
Every LINK-PP optical module undergoes exhaustive optical checks to verify consistent performance before shipment.
LS-CW571G-80C Quality Certifications
At LINK-PP, we follow rigorous production and inspection standards to ensure consistent quality. Each unit is individually tested to guarantee reliable performance in a variety of network environments.
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.
LS-CW571G-80C Certified for Reliable Host-Device Compatibility
Extensive interoperability testing ensures smooth operation with LINK-PP-compatible networking equipment. This reduces deployment issues and enhances plug-and-play reliability.
Rigorous Testing Ensures Reliable SFP Performance
Rigorous testing is conducted to ensure that each optical module runs smoothly and efficiently over time. Further support information is available via the LINK-PP Test Support Center.
Optical Spectrum Test
Delivers precise wavelength control for clear network performance.
Eye Pattern Test
Ensures optimized data signals for fast, stable transmission.
Bit Error Rate Test
Confirms reliable, high-quality data accuracy.
Temperature Test
Proves smooth operation in diverse environmental conditions.
Product Shipping for LINK-PP LS-CW571G-80C 1G SFP
Your LINK-PP module arrives ready to perform, securely packed, expertly protected, and shipped through our dependable worldwide partners.
Anti-Static Protective Packaging
Anti-static packaging ensures ESD-safe handling.
Shock-Resistant Transport Protection
Shock-absorbing materials reduce the impact of vibrations during transit.
Fast Order Processing and Dispatch
Optimized operations for fast processing and shipment.
Global Logistics and International Delivery
Consistent international delivery via global logistics.
LINK-PP LS-CW571G-80C 1G SFP Usage Demonstration
With its 1.25 Gbps data rate, 1570 nm CWDM wavelength, and up to 80 km transmission capability, the LINK-PP LS-CW571G-80C is perfect for long-distance fiber links in enterprise backbones, metro networks, and telecom access layers. Its compact SFP form factor delivers a balanced combination of reach, efficiency, and durability for modern network infrastructures.
LS-CW571G-80C Technical Support
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Pre-Sales Technical Consultation
Professional technical guidance to help customers select the most suitable LS-CW571G-80C modules based on network architecture and application requirements.
Compatibility Verification Support
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Deployment & Installation Assistance
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
A:
Yes, we can pre-code the EEPROM to the vendor string your switch expects, and the coding is written to the module, so a firmware upgrade on the switch does not change it. Tell us the brand and model when ordering. If you already have uncoded units, we can also advise on the correct part number to request for the next batch. By
admin
A:
Yes, as long as the mux is a standard CWDM unit with a 20nm grid. 1570nm is a normal CWDM channel and sits on its own port, so it will not interfere with 1550. Just confirm the mux port is labelled 1570 and not a combined or wideband port, and check the insertion loss of that port when you recalculate the link budget. By
admin
A:
Each module has the full part number and wavelength printed on the label, and the wavelength is also readable in the DOM wavelength field over the I2C bus. For a mixed shelf we suggest labelling the mux port as well, because the housings are identical. Mis-cabling two adjacent CWDM channels is the most common installation error we hear about. By
admin
A:
Probably yes. Receiver overload for this part is around -1dBm, and a 15km span typically delivers only 4 to 5dB of loss, which would put you close to or above that limit. A 10dB pad is a safe starting point. Measure the receive power after installation and aim for something between -8 and -18dBm. By
admin
A:
It works for both. 1G Fibre Channel runs at 1.0625Gbps, which is inside the 1.25Gbps capability of this module, so it will carry FC traffic as long as the switch port is configured for 1G FC and not Ethernet framing. We have customers running it on Brocade and Cisco MDS gear for SAN extension over single mode. By
admin
We used these for a metro Ethernet handoff between a carrier POP and our office. 1570nm through a passive mux, 48km, one connector pair at each end. The module negotiated at 1000BASE-X with autoneg off, which is what our carrier requires. DDM shows healthy bias current, so I expect these to last.
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character.
492868
579833
D***t
Philippines
Verified
Purchase
5 .0
2026-08-12
Our substation telemetry link runs over 80km of single mode and the previous optics kept dropping in hot weather. Swapped to these and the link has held through a 40℃ week. The commercial 0 to 70℃ rating is fine because the cabinet is ventilated, but I would not push them past that.
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character.
492868
579834
P***s
Romania
Verified
Purchase
5 .0
2026-07-18
Running 1570 on an inter office link with two intermediate splice points. Attenuation is a bit higher than our 1550 span but it still lands at -19dBm at the receiver. Stable for two months now.
Please write comments with more than three
character.
492868
579821
N***s
United Arab Emirates
Verified
Purchase
5 .0
2026-06-28
This is the second time I have ordered the 1570nm version. We use it where 1550 is occupied by an existing service and we do not want to pull new fibre. The CWDM DFB laser is stable and I appreciate that the module reports real DOM values rather than fixed placeholders. Only gripe is the box label layout is identical to the 1550 part, so check the part number before installing.
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character.
492868
579830
J***n
Italy
Verified
Purchase
5 .0
2026-01-25
Deployed on a rural telecom backhaul, 63km of old single mode with a mid span splice trailer. The link budget was tight on paper, but the -26dBm receiver sensitivity gave us room and we measured -20.1dBm at the far end. Running 1.25G with jumbo frames, no drops in a week of soak testing. Good value CWDM transceiver.
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character.
492868
579831
P***l
Denmark
Verified
Purchase
5 .0
2026-01-14
Compatibility was my worry since we run mostly Cisco and a couple of Edgecore switches. Both accepted the module, DOM reads fine, and there were no unsupported transceiver log messages.
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character.
492868
579817
S***n
New Zealand
Verified
Purchase
5 .0
2025-11-24
Needed the 1570 slot specifically because 1550 was already taken on our CWDM ring. These arrived correctly coded and the link came up at 1G without any reconfiguration on the switch side.
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character.
492868
579818
C***n
Brazil
Verified
Purchase
5 .0
2025-08-27
These 80km CWDM transceivers have been solid in our telecom access layer. The DFB laser holds output steady and the PIN receiver is sensitive enough that we did not need an amplifier on a 74km run.
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character.
492868
579822
N***t
Iran, Islamic Republic of
Verified
Purchase
5 .0
2025-07-06
Ordered these for a small ISP aggregation project with 9 nodes on a CWDM tree, 1570 channel, duplex LC, all plug and play. One node needed a 3dB pad because the span was only 12km and we were close to the receiver overload limit, which is normal for 80km optics on short runs. Worth knowing before you deploy.
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character.
492868
579835
T***y
South Africa
Verified
Purchase
5 .0
2025-03-24
Used for a campus to datacenter link where the fibre pair was already carrying 1550. Adding 1570 through a mux worked first time. Better documentation on channel planning would help buyers though.
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character.
492868
579812
S***r
Republic of Korea
Verified
Purchase
5 .0
2024-08-07
We use 1570nm for a 1G Fibre Channel extension between two SAN islands about 30km apart. Frames are clean, no credit loss on the ISLs, and DOM reports correctly on both ends.
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character.
492868
579819
S***z
Finland
Verified
Purchase
5 .0
2024-07-14
Ordered by mistake thinking it was the 1550 part, but the 1570 channel actually suited our mux plan better. The vendor answered my email about the wavelength difference within a day, which was helpful.
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character.
492868
579820
L***n
Taiwan, Province of China
Verified
Purchase
5 .0
2024-07-14
We operate a four channel CWDM ring and 1570nm was the last free slot. This module dropped in without any EEPROM issues on our Huawei uplink and negotiated 1G immediately. Over 71km with four splices the receive level sits at -18.6dBm, comfortably inside the -26dBm sensitivity, so we have roughly 7dB of headroom for ageing. DDM alarms mapped straight into our NMS.
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492868
579828
A***n
Hong Kong
Verified
Purchase
5 .0
2024-07-08
We replaced two ageing OEM optics with these on a 1570nm CWDM span. Link budget improved slightly, probably because the old units had drifted. A cheap fix for a link that kept flapping.
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character.
492868
579814
M***n
Belarus
Verified
Purchase
5 .0
2024-05-15
Good long haul SFP for Gigabit Ethernet. We tested BER for 48 hours at 1.25G and got zero errors. The LC connectors are tight, but that is fine for a permanent install.
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character.
492868
579827
A***s
Denmark
Verified
Purchase
4 .0
2024-02-23
Modules perform well on our 60km span, but the outer carton was crushed and one of five boxes had a loose module rattling inside. It still worked after inspection. Please add more foam for international shipments.
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character.
492868
579836
E***e
United States
Verified
Purchase
5 .0
2024-02-22
I manage about 200 optics across our estate and these are now our standard 1570 spare. What matters to me is consistency, and across 15 units the TX power stayed within 0.7dB while DOM temperature tracked our probe within 2℃. That makes capacity planning predictable. Packaging is plain but adequate and none arrived damaged.
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character.
492868
579832
J***n
India
Verified
Purchase
5 .0
2024-02-17
Put four of these in a remote outdoor cabinet for a small WISP backhaul. Temperature inside hits 55℃ in summer and the modules keep reporting normal bias current. Good performance for a commercial temperature part. ;)
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character.
492868
579816
G***s
Lithuania
Verified
Purchase
5 .0
2024-01-20
Bought six for a 1G Fibre Channel SAN extension across two buildings. FC is picky about optics in my experience, but these ran clean on Brocade switches with no port flapping. TX power measured between -0.4 and +0.9dBm across the batch, and receive sat around -15dBm on 22km of single mode. Two months, zero issues.
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