CWDM-SFP-1330 serves as a 1330nm CWDM SFP optical module that handles transmission speeds up to 1.25Gbps for long-reach single-mode fiber deployment up to 40km. Built upon a precision DFB laser and PIN receiver architecture, it delivers resilient optical performance across commercial operating environments ranging from 0 to +70°C. Fully compliant with standard SFP Multi-Source Agreements (MSA), it incorporates real-time digital diagnostic monitoring functionality for precise end-to-end link assessment.
Cisco Part Number
CWDM-SFP-1330
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1330nm
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 Cisco CWDM-SFP-1330 Compatible LINK-PP 1.25G SFP
Cisco CWDM-SFP-1330 Compatible LINK-PP integrates a 1330nm CWDM laser, duplex LC connector, and advanced digital diagnostic monitoring into a compact form factor. The module enables long-reach single-mode fiber connectivity up to 40km with dependable 1 Gbps data transmission. Designed for standard optical networks, it provides efficient wavelength division multiplexing and real-time link supervision for enterprise switch deployments.
This transceiver features a hot-pluggable SFP footprint that allows easy installation and replacement without powering down host systems. It fully complies with standard SFP Multi-Source Agreements (MSA) to ensure broad interoperability across vendor hardware platforms. The robust physical design guarantees seamless plug-and-play operation in standard networking equipment.
CWDM-SFP-1330: 1 Gbps Connectivity for Enterprise Edge Switches
Delivering full Gigabit line-rate speeds, this module supports smooth bandwidth delivery across enterprise networks. The sustained 1Gbps throughput optimizes edge switch links by efficiently handling daily voice, video, and corporate data traffic. It serves as an ideal solution for modern aggregation devices requiring steady Ethernet connectivity.
CWDM-SFP-1330 Module with CWDM Technology for Fiber Efficiency
Coarse Wavelength Division Multiplexing enables multiple signal channels to travel over a single fiber pair by assigning specific operating wavelengths. Utilizing this technology significantly boosts overall network capacity while avoiding the high costs of laying new physical fiber cables. Network operators can easily expand bandwidth density across existing passive optical infrastructures.
CWDM-SFP-1330 Module with 1330nm Wavelength
Operating at a precise 1330nm central wavelength, the optical transmitter maintains stable light signal generation during transmission. This specific wavelength channel integrates smoothly into multi-channel CWDM grid configurations alongside other standard optical transceivers. Precise spectral control ensures low channel interference and clean signal separation across the optical link.
CWDM-SFP-1330 Module Supporting 40km Transmission
Long-distance reach up to 40km is achieved over single-mode fiber (SMF) cables using an integrated DFB laser and PIN photodiode setup. The strong optical link budget effectively overcomes signal attenuation across extended campus or inter-building connections. Remote facilities can stay reliably interconnected without requiring intermediate signal regenerators.
CWDM-SFP-1330 Module with Duplex LC Interface
An industry-standard duplex LC optical connector provides secure and tight physical contact for fiber jumper patch cables. The dual-fiber layout separates transmit and receive optical paths to prevent signal crossover during continuous two-way communication. Standard LC patch cords latch firmly into place to maintain stable mechanical and optical connections.
CWDM-SFP-1330 Module with DDM for Real-Time Monitoring
Digital Diagnostic Monitoring functionality complies strictly with SFF-8472 standards to offer real-time operational feedback. The internal telemetry system tracks essential parameters including Rx/Tx optical power, laser bias current, operating temperature, and supply voltage. Network engineers can leverage these live metrics for proactive maintenance and rapid link diagnostics.
Cisco CWDM-SFP-1330 Compatible LINK-PP SFP module complies with strict international manufacturing standards including ISO 9001, CE, RoHS, and FCC. These certifications confirm that every optical transceiver meets mandatory regulatory requirements for safety, environmental protection, and electromagnetic compliance.
Every CWDM-SFP-1330 module undergoes rigorous factory testing to verify optical performance, signal integrity, and environmental durability. The comprehensive evaluation process ensures zero-defect delivery and long-term operational stability before deployment.
CWDM-SFP-1330 Quality Certifications
Standardized manufacturing protocols govern the production process to maintain uniform optical and electrical parameters across all hardware batches. Physical components and optical sub-assemblies are audited to meet international standards for operational safety and environmental protection.
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-1330 Certified for Reliable Host-Device Compatibility
Interoperability testing protocol verifies physical and firmware compatibility across multi-vendor switch and router platforms. Correct identification parameters integrated into the module enable native recognition by host port controllers during system startup.
Rigorous Testing Ensures Reliable SFP Performance
Every CWDM-SFP-1330 1G SFP optical transceiver undergoes comprehensive validation protocols to guarantee precise signal transmission, stable wavelength output, and long-term hardware reliability in demanding environments. You can discover the complete validation methodology and quality verification processes at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength accuracy and side-mode suppression ratio metrics.
Eye Pattern Test
Evaluate optical signal clarity and waveform distortion levels precisely.
Bit Error Rate Test
Measure transmission error rates to confirm lossless data integrity.
Temperature Test
Assess operational thermal stability across varying environmental conditions.
Product Shipping for Cisco CWDM-SFP-1330 Compatible LINK-PP 1.25G SFP
Each CWDM-SFP-1330 1G SFP optical transceiver is securely packed and handled under strict logistics protocols to preserve hardware integrity during transit. Reliable transport networks ensure accurate tracking and punctual global delivery for all customer orders.
Anti-Static Protective Packaging
Prevent electrostatic discharge damage using specialized ESD shielding packaging.
Shock-Resistant Transport Protection
Safeguard delicate optical assemblies against mechanical impacts during transit.
Fast Order Processing and Dispatch
Expedite warehouse dispatch to reduce overall supply chain lead times.
Global Logistics and International Delivery
Transport orders globally through established cross-border courier channels smoothly.
Insert the CWDM-SFP-1330 1330nm CWDM SFP module into an enterprise edge switch port, remove the dust cap, and connect LC single-mode fiber cables. Access the switch CLI to verify link status and monitor real-time DDM optical power, establishing reliable 40km gigabit backhaul between facility access layers.
CWDM-SFP-1330 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-1330 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:
This transceiver is fully compatible with standard passive CWDM MUX/DEMUX systems, slotting cleanly into the 1330nm optical channel grid with zero adjacent-band interference. By
admin on
2026-05-17
A:
With a typical optical budget designed for up to 40km over standard single-mode fiber, this transceiver is generally well suited to cover 32km runs while accommodating normal insertion losses across passive duplex LC patch panels. By
admin on
2026-03-23
A:
The LS-CW331G-40C SFP module utilizes a dedicated CWDM DFB laser with tight wavelength tolerances, which is typically engineered to maintain clean channel isolation and minimize spectral leakage into neighboring 20nm-spaced optical channels. By
admin on
2025-08-06
A:
Yes, the LS-CW331G-40C module features a hot-pluggable SFP footprint and operates on a single +3.3V supply for seamless live insertion. By
admin on
2025-04-25
We ordered a large quantity of these 1.25G CWDM SFP modules to interconnect 6 administrative buildings in a continuous fiber ring architecture. The color-coded bail latch on the 1330nm units makes port identification fast and foolproof during installation in dimly lit server closets. Every unit was recognized instantly by our managed switches, providing sustained full-duplex gigabit speeds during peak network hours. Excellent build quality that makes large-scale multi-building deployments completely stress-free.
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492040
458695
E***d
Bangladesh
Verified
Purchase
5 .0
2026-05-19
Proprietary OEM CWDM optics always eat into project margins. These MSA-compliant modules provide identical Bit Error Rate performance and rock-solid link stability at a fraction of the cost. The budget stayed intact and the connection has been flawless.
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492040
458684
M***n
India
Verified
Purchase
5 .0
2026-03-18
We rolled out a batch of these 1G SFP CWDM modules for a data center interconnect project. Every single unit passed our incoming inspection with no issues. We're using the 1330nm channel alongside other wavelengths through a CWDM Mux, and channel isolation has been clean with no crosstalk. The duplex LC connectors are seated firmly, and the modules run cool even in dense racks. DDM reporting has been accurate enough that our monitoring tools catch problems early. We've had zero failures and zero packet loss on the links since deployment. The bulk pricing made this an easy decision compared to OEM optics.
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492040
458699
A***r
Macao
Verified
Purchase
5 .0
2026-02-06
Purchased 12 units to connect remote distribution switches back to our primary server room. The 1330nm channel dropped right into our passive filter bank with zero adjacent-channel crosstalk. No packet loss observed under sustained throughput saturation tests.
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492040
458689
C***e
United Arab Emirates
Verified
Purchase
5 .0
2026-01-31
Tested these CWDM SFP transceivers in our staging lab alongside our CWDM multiplexers. Insertion loss is well within expected thresholds, and the latching bail feels durable during installation. Will definitely order additional wavelength channels soon.
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492040
458694
B***n
Canada
Verified
Purchase
5 .0
2025-12-01
I run a regional fiber network and I've been using this module in production for about a month. We deployed these 1330nm CWDM SFP modules on a few 40km single-mode runs between our main sites. The laser holds its wavelength really well, which matters when you stack several channels through a CWDM Mux. DDM reporting works as expected and gives me live temperature and link status, so I can spot a bad link before it goes down. It linked up on every switch we tried with zero configuration. BER stayed clean in our bit error tests and the mask margin was well above spec. For a commercial temp module rated 0-70°C, it's been rock solid in our racks.
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492040
458683
S***r
Maldives
Verified
Purchase
5 .0
2025-10-19
Our core routers picked up the optical transceiver EEPROM and telemetry data instantly. Supply voltage, laser bias current, and Rx/Tx levels are fully readable via CLI.
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492040
458690
O***e
Iran, Islamic Republic of
Verified
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5 .0
2025-09-14
Calculated a 16 dB optical link budget for our 30km fiber run. Real-time DDM readings showed Tx at -1.5 dBm and Rx at -16.8 dBm, leaving more than enough safety margin before hitting the receiver sensitivity threshold. Exceptional transmission stability.
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492040
458693
H***n
Germany
Verified
Purchase
5 .0
2025-08-17
We deployed a batch of these 1330nm CWDM transceivers to connect two enterprise data centers across a 36km single-mode fiber span through patch panels. The link initialized immediately upon insertion into our optical Mux bank, delivering a clean 1.25Gbps line rate across all test packets. Real-time DDM diagnostics tracked temperature and voltage reliably without generating interface warnings. After running a continuous 48-hour traffic stress test, our monitoring system reported zero dropped frames and consistent low latency throughout the entire link.
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492040
458696
C***s
Lithuania
Verified
Purchase
5 .0
2025-06-27
Using these inside outdoor telecom cabinets for cell site backhaul links. Even though it is standard commercial temperature (0 to 70°C), internal cabinet temps hovered near 45°C during summer, and the 1330nm wavelength stability never wavered. Outstanding build quality!
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492040
458682
M***e
Morocco
Verified
Purchase
5 .0
2025-05-22
Multiplexed legacy Gigabit Ethernet links over an 8-channel optical Mux. The LC duplex port latches securely with a solid, satisfying mechanical fit. Verified attenuation with an optical power meter, and the transmitter launch power matched the factory data sheet perfectly.
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492040
458685
Z***r
France
Verified
Purchase
5 .0
2025-03-03
SFP compatibility is always a major concern when deploying CWDM optics across mixed-vendor switch layers in our server rooms. We bench-tested this 1330nm batch across multiple aggregation and access switch models in our staging lab before rollout. Every switch recognized the transceiver EEPROM instantly without needing forced command line overrides. Optical link negotiation was instantaneous, and the standard duplex LC connectors clicked securely into every optical cage without mechanical play.
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492040
458697
E***r
Nepal
Verified
Purchase
5 .0
2025-02-19
Solid hardware overall. Used these 1G CWDM SFP modules to link our secondary logistics facility 34km away over leased single-mode fiber. Data rates stay pinned at full 1Gbps duplex without dropped frames. High-quality commercial transceivers for business networks.
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492040
458691
A***e
Brunei Darussalam
Verified
Purchase
5 .0
2025-01-29
Deployed 16 of these 1G CWDM transceivers to expand capacity across our metro dark fiber ring. Hit a 28km link over a 1330nm optical channel, and Rx power sits comfortably at -14.2 dBm. Built-in DDM makes tracking fiber health and attenuation super easy in our monitoring dashboard.
Germany · English · EUR
