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The Arista SFP1G-SX-31-I Compatible LINK-PP SFP module delivers dependable optical transmission at data rates up to 1.25 Gbps. Operating at a 1310 nm wavelength, it supports transmission distances of up to 2 km over multi-mode fiber (MMF), ensuring consistent signal integrity and industrial-grade reliability in short-to-medium distance networking scenarios.
| Arista Part Number | SFP1G-SX-31-I | Vendor Name | LINK-PP |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1310nm | Max Cable Distance | 2km |
| Connector | Duplex LC | Media | MMF |
| Transmitter Type | FP | Receiver Type | PIN |
| TX Power | -12 to -3dBm | RX Power | -23 to -1dBm |
| Receiver Sensitivity | <-23dBm | Receiver Overload | -1dBm |
| Operating Temperature Range | -40 to 85°C | Protocols |
SFF-8472 MSA IEEE 802.3 |
The Arista SFP1G-SX-31-I Compatible LINK-PP transceiver provides reliable 1.25 Gbps throughput with steady optical performance across 2 km of MMF. It features a duplex LC interface for quick installation and seamless integration, along with Digital Optical Monitoring (DOM) for real-time diagnostics. These capabilities enhance operational efficiency, simplify maintenance, and ensure smooth deployment.
The Arista SFP1G-SX-31-I Compatible LINK-PP optical module uses a FP laser transmitter and a PIN photodiode receiver to support accurate optical signal control, high transmission precision, and strong environmental fluctuation resistance, making it ideal for industrial-grade applications.
The Arista SFP1G-SX-31-I Compatible LINK-PP module provides dependable Gigabit Ethernet and 1G Fiber Channel connectivity for enterprise networks, campus backbones, and industrial access layers, with a stable 1.25 Gbps connection.
Operating at a wavelength of 1310nm, this Arista SFP1G-SX-31-I Compatible LINK-PP module offers enhanced attenuation performance, helping reduce signal loss and improve transmission stability over multi-mode fiber links.
Supporting data transmission over distances of 2 kilometers on multi-mode fiber. The Arista SFP1G-SX-31-I Compatible LINK-PP 1G SFP module is a practical choice for inter-building connections, enterprise campus networks, and distribution-layer links.
The duplex LC connectors enable efficient separation of transmit and receive channels, allowing for clean cable management, fast deployment, and precise connectivity. It ensures compatibility with standard SFP ports across switches, routers, and media converters.
Through its DOM function, key operating conditions such as temperature, supply voltage, transmit and receive power can be assessed in real-time, which facilitates troubleshooting and routine maintenance.
Precision-built and performance-certified, each LINK-PP module upholds ISO 9001 quality principles and global CE, RoHS, and FCC standards, symbolizing our dedication to excellence in every connection.
Each module undergoes careful multi-stage testing to ensure wavelength accuracy, low error rates, and long-term operating stability.
Recognized globally with ISO 9001, CE, RoHS, and FCC certifications, LINK-PP delivers trusted quality across a wide range of network applications.
Extensively tested for compatibility with LINK-PP systems, guaranteeing plug-and-play deployment and seamless integration.
Comprehensive testing procedures validate durability and performance consistency. Discover more at the LINK-PP Test Support Center.
Monitors wavelength precision to support stable transmission.
Checks waveform clarity to verify clean and accurate data transmission.
Ensures low BER for robust network performance.
Confirms thermal tolerance to prevent performance degradation.
LINK-PP modules are prepared for deployment and shipped via a logistics process that protects the product while ensuring fast, consistent delivery.
Static-resistant layers protect the internal components during transit.
Sturdy packaging reduces the risk of shipping damage.
Quick processing ensures efficient fulfillment.
Optimized logistics support seamless global shipping.
The Arista SFP1G-SX-31-I Compatible LINK-PP 1G SFP transceiver module is ideal for industrial Ethernet systems, enterprise campus networks, data center aggregation, and building-to-building connectivity with its robust design and stable performance.
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Professional technical guidance to help customers select the most suitable SFP1G-SX-31-I modules based on network architecture and application requirements.
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Ongoing technical support throughout the product lifecycle to ensure reliable performance in 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
Compatible | Arista | Arista | Arista | Arista | Arista | Arista |
Data Rate (Max) | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps |
Wavelength | 1310nm | 1310nm | 850nm | 1310nm | 1310nm | 1310nm |
Connector | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC | Duplex LC |
Cable Distance (Max) | 2km | 40km | 550m | 10km | 2km | 2km |
Cable Type | MMF | SMF | MMF | SMF | SMF | SMF |
TX Power | -12 to -3dBm | -5 to 0dBm | -9 to 0dBm | -9 to 0dBm | -12 to -3dBm | -12 to -3dBm |
Receiver Sensitivity | -23 to -1dBm | -23 to -1dBm | -18dBm | -23dBm | -23 to -1dBm | -23 to -1dBm |
Operating Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | 0 to 70°C | |
Vendor Name | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Form Factor | SFP | SFP | SFP | SFP | SFP | SFP |
Transmitter Type | FP | DFB | VCSEL | FP | FP | FP |
Receiver Type | PIN | PIN | PIN | PIN | PIN | PIN |
Receiver Overload | -1dBm | |||||
Protocols | SFF-8472 MSA IEEE 802.3 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | IEEE 802.3z, SFF-8472, FC-PI, SFP MSA (INF-8074i) Compliant | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 | SFF-8472 MSA Compliant, IEEE 802.3ah-2004 |
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Q: How useful is the DOM function during network maintenance? By A***a on 2026-03-11
A: DOM is useful for checking optical operating conditions remotely. During troubleshooting, you can use the reported optical information to compare links and identify abnormal TX/RX conditions before replacing hardware unnecessarily. By admin on 2026-03-12
Q: Can I deploy this in an outdoor network cabinet with temperature changes? By K***s on 2025-11-12
A: The module is rated for an operating temperature range of -40 to 85°C, making it suitable for industrial and temperature-variable environments. The cabinet itself should still provide appropriate protection from moisture, dust, and other external conditions. By admin on 2025-11-12
Q: Can the 1310nm optic work over our existing multimode fiber without replacing the fiber plant? By I***z on 2025-07-26
A: It is designed for multimode fiber and supports up to 2km transmission. Before deployment, confirm the actual fiber type, link length, connector condition, and optical budget of the installed path to make sure the existing MMF link is suitable. By admin on 2025-07-27
Q: What should I check when testing this optic with equipment from different vendors? By T***l on 2024-04-10
A: Verify that the host SFP port accepts a standard 1G SFP and supports the required Ethernet application. During testing, check link establishment, TX/RX optical levels, DOM information, and stability under traffic rather than checking only whether the port comes up. By admin on 2024-04-11
Q: Can this 1G SFP be used around a home 10G NAS network? By Z***n on 2024-01-02
A: It can be used for a 1G segment or management link around a 10G NAS environment, provided the switch or network port supports the SFP module. It should not be used as a 10G optical link because its maximum data rate is 1.25Gbps. By admin on 2024-01-02
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