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The CW-SFP10G40-31-I module, engineered as a 10G CWDM optical transceiver module, integrates a cooled EML laser and a PIN photodiode to ensure precise 1310nm signal propagation over single-mode fiber links reaching up to 40km. Designed with integrated digital optical monitoring, it grants real-time telemetry on critical operational metrics like optical power and temperature to streamline link management.
| Generic Part Number | CW-SFP10G40-31-I | Vendor Name | LINK-PP |
| Form Factor | SFP+ | Max Data Rate | 10.7Gbps |
| Wavelength | 1310nm | Max Cable Distance | 40km |
| Connector | Duplex LC | Media | SMF |
| Transmitter Type | EML | Receiver Type | PIN |
| TX Power | -1 to +5dBm | RX Power | -23 to -6dBm |
| Receiver Sensitivity | -16dBm | DOM Support | Yes |
| Operating Temperature Range | -40 to 85°C | Protocols | SFP+ MSA, CPRI, eCPRI, SFF-8431, SFF-8472, RoHS, ITU-T G.652 |
Generic CW-SFP10G40-31-I Compatible LINK-PP module is an industrial-grade 10G SFP+ CWDM optical transceiver module for long-distance fiber connections. It supports 1310nm wavelength, 40km transmission, Duplex LC interface, and DOM monitoring. This module is suitable for edge data centers and related industrial network applications.
CW-SFP10G40-31-I module uses a hot-pluggable SFP+ footprint for easy installation and replacement. It is compliant with SFP+ MSA and SFF-8472 for better compatibility. This design supports use in industrial network equipment.
This transceiver delivers 10Gbps data transmission for stable network performance. It is well suited for edge data centers that need fast fiber connectivity. This speed helps support industrial data links and network expansion.
CWDM technology helps send multiple signals over the same fiber pair. It improves fiber efficiency and reduces the need for extra cable resources. This is useful in industrial network systems with limited fiber capacity.
The 1310nm wavelength supports reliable optical transmission over long distances. It helps maintain stable signal quality in industrial fiber networks. This makes it a practical choice for related network applications.
This module supports transmission up to 40km. It is designed for long-reach fiber links in industrial network environments. The distance range helps connect devices across separate sites or buildings.
The duplex LC interface provides a compact and standard fiber connection. It supports easy installation in industrial network equipment. This interface also helps keep the connection secure and neat.
DOM allows real-time monitoring of important operating data. Users can check temperature, voltage, bias current, and optical power during use. This helps improve maintenance and keep industrial networks running smoothly.
Generic CW-SFP10G40-31-I Compatible LINK-PP module is certified to meet ISO 9001 quality management standards, along with CE, RoHS, and FCC compliance for industrial optical use.
Before delivery, the module is checked through a quality testing program that covers optical performance, signal stability, and working reliability.
These certifications show that this CWDM SFP+ module is built and controlled under clear quality rules for consistent product output.
Compatibility verification is performed to help ensure proper operation with supported host systems and to reduce integration risk in practical deployment.
Each SFP+ module is tested under strict conditions to confirm stable signal quality and dependable operation in real network environments. For more details, visit LINK-PP Test Support Center.
Analyze the optical spectrum to verify wavelength accuracy and signal consistency.
Evaluate the eye diagram to check signal quality and transmission integrity.
Measure the bit error rate to confirm data accuracy during transmission.
Test performance across different temperatures to ensure stable operation.
The CW-SFP10G40-31-I module is prepared with care to help protect product condition during shipment. We also work to process orders efficiently so delivery can move forward without unnecessary delay.
Protect the module from static damage during handling.
Reduce movement and impact during shipping.
Speed up order handling and shipment preparation.
Support reliable delivery to customers worldwide.
This CW-SFP10G40-31-I industrial-grade CWDM module seamlessly expands network capacity over long distances without laying extra fiber. After hot-swapping the module into your switch and connecting duplex LC cables, it provides low-latency connectivity for outdoor surveillance, smart grids, and edge data centers.
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Professional guidance to help you select the optimal CW-SFP10G40-31-I module for your network design and application needs.
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
LINK-PP provides after-sales support for the smooth deployment and reliable operation of the optical modules.
15-day no-reason return and refund
Free replacement for dead-on-arrival (DOA) or defective items within the initial period
Free repair services for manufacturing defects throughout the warranty period
Warranty exclusions and conditions apply
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Compatible | Generic | Generic | Generic | Generic | Generic | Generic |
Data Rate (Max) | 10.7Gbps | 10.7Gbps | 10.7Gbps | 10.7Gbps | 10.7Gbps | 10.7Gbps |
Wavelength | 1310nm | 1533.46nm | 1534.25nm | 1535.04nm | 1535.82nm | 1536.61nm |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max) | 40km | 40km | 40km | 40km | 40km | 40km |
Cable Type | SMF | SMF | SMF | SMF | SMF | SMF |
TX Power | -1 to +5dBm | -1 to +2dBm | -1 to +2dBm | -1 to +2dBm | -1 to +2dBm | -1 to +2dBm |
Receiver Sensitivity | -16dBm | -15.5dBm | -15.5dBm | -15.5dBm | -15.5dBm | -15.5dBm |
Operating Temperature | -40 to 85°C | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C |
Vendor Name | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Generic Part Number | CW-SFP10G40-31-I | DW-SFP10G40-55 | DW-SFP10G40-54 | DW-SFP10G40-53 | DW-SFP10G40-52 | DW-SFP10G40-51 |
Temperature | Industrial | Commercial | Commercial | Commercial | Commercial | Commercial |
Form Factor | SFP+ | SFP+ | SFP+ | SFP+ | SFP+ | SFP+ |
Transmitter Type | EML | EML | EML | EML | EML | EML |
Receiver Type | PIN | PIN | PIN | PIN | PIN | PIN |
DOM Support | Yes | |||||
Protocols | SFP+ MSA, CPRI, eCPRI, SFF-8431, SFF-8472, RoHS, ITU-T G.652 | SFP+ MSA, CPRI, eCPRI, SFF-8472, SFF-8431 | SFP+ MSA, CPRI, eCPRI, SFF-8472, SFF-8431 | SFP+ MSA, CPRI, eCPRI, SFF-8472, SFF-8431 | SFP+ MSA, CPRI, eCPRI, SFF-8472, SFF-8431 | SFP+ MSA, CPRI, eCPRI, SFF-8472, SFF-8431 |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: Can we plug standard OS2 single-mode patch cords into this CWDM 1310nm transceiver, or do we need specialized low-loss cables? By P***l on 2026-02-07
A: It uses a standard duplex LC connector and operates over standard single-mode fiber. While standard patch cords are generally suitable, we always recommend verifying that your connector end-faces are clean and insertion loss remains low to ensure stable link performance. By admin on 2026-02-08
Q: Does the 1310nm CWDM wavelength drift when outdoor cabinet temperatures rise in summer? By T***r on 2026-01-06
A: No, this LS-CW3110-40I CWDM module uses an internal cooled EML laser rather than an uncooled DFB laser. The built-in cooler locks the 1310nm central wavelength precisely on-channel, preventing channel drift and link drops under extreme thermal swings. By admin on 2026-01-07
Q: We do live swaps during maintenance. Is hot-plugging this 1310nm SFP+ safe, and will it cause port flaps on 10G uplinks? By R***k on 2025-12-22
A: The module has a hot-pluggable SFP+ footprint per MSA. Hot-plug is safe; brief link flaps are normal as the PHY re-trains. Keep firmware updated and DOM thresholds reasonable to avoid false alarms. By admin on 2025-12-23
Q: We plan to use this CWDM 1310nm module in our Cisco and Juniper switches. Will it work directly without throwing unrecognized transceiver errors? By K***h on 2025-07-05
A: Yes, the LS-CW3110-40I fully complies with the SFP+ MSA standard. We pre-code the EEPROM specifically for your switch brand (Cisco, Juniper, Brocade, etc.) before shipping, so it is plug-and-play with no vendor-lock alarms. By admin on 2025-07-06
Q: Can we run this 1310nm module into a standard passive CWDM Mux/Demux alongside our other CWDM wavelength channels? By N***s on 2025-05-21
A: Yes, the module is designed to connect directly into the dedicated 1310nm port (or 1310nm band port) on your standard CWDM Mux/Demux, allowing you to expand network capacity over a single fiber pair smoothly. By admin on 2025-05-22
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