1️⃣ Introduction
In today’s optical networking landscape, demand for reliable, long-reach, cost-effective transceiver modules continues to grow. The LINK‑PP LS-SM311G-10C is designed to address that need: a hot-pluggable SFP module rated for 1.25 Gbps over single-mode fibre (SMF) with up to 10km reach, supporting digital optical monitoring (DOM) and industry-standard form factors. Whether in enterprise networks, data centre uplinks, or telecom aggregation points, the LS-SM311G-10C delivers the performance you need with trustworthy reliability.
2️⃣ Key Specifications & Features
Here’s a breakdown of the core specifications of the LS-SM311G-10C (as per the datasheet):
Form factor: SFP (Small Form-factor Pluggable)
Data rate: up to 1.25 Gbps (GbE / Fibre Channel)
Wavelength: 1310 nm FP laser
Maximum link distance: 10 km on SMF (single-mode fibre)
Connector: Duplex LC/UPC
Digital diagnostics (DOM) support via SFF-8472
Operating case temperature (standard): 0 °C to +70 °C
Typical transmitter output power: –9 dBm (min) to 0 dBm (typical)
Receiver sensitivity: –23 dBm (max)
Receiver overload: –1 dBm (max)
Compatible with SFP MSA and SFF-8472 diagnostics standard.
3️⃣ Why Choose LS-SM311G-10C?
Long-Reach, Cost-Effective Deployment
With a 10 km reach over single-mode fibre and support for 1.25 Gbps data rates, the LS-SM311G-10C is ideal for uplinks, campus backbone segments, metro extensions, or aggregation links where cost, space and reliability are key.
Hot-Swappable Module with Digital Diagnostics
The hot-pluggable SFP footprint allows seamless integration into standard cages and equipment. With DOM support, network operators can monitor real-time parameters (temperature, bias current, output power, supply voltage) for proactive maintenance.
Standards Compliance and Compatibility
Compliance with SFP MSA and SFF-8472 ensures interoperability with multi-vendor switches, routers and media converters. The datasheet confirms solid compatibility listings.
Global Service & Proven Track Record
The product listing shows real-world adoption and reviews across international customers.
Discover the LS-SM311G-10C
Enhance your network performance with the LINK-PP LS-SM311G-10C SFP Optical Transceiver Module. Click to learn more!
4️⃣Use Case Scenarios
Enterprise Network Uplink: Connect buildings or floor-level switches over 10 km single-mode fibre while supporting Gigabit connectivity.
Data Centre Interconnect: Use as cost-effective SFP modules for intra-data-centre or campus connections.
Metro/Carrier Edge: Suitable for access aggregation links where 10 km reach is sufficient and monitoring reliability is critical.
Network Conversion or Upgrade: Ideal for migrating from older optics to modern DOM-capable modules while maintaining standard form factor and interface.
5️⃣ Compatibility
The LS-SM311G-10C gives you wide SFP compatibility. You can use it with switches and routers from Cisco, Juniper, Alcatel-Lucent, Avaya, IBM, Intel, DELL, and more. Here is a table that shows some compatible brands:
Brand | Compatibility with LS-SM311G-10C | SFP Modules |
|---|---|---|
Alcatel-Lucent | Yes | Alcatel-Lucent iSFP-GIG-LX |
Avaya | Yes | Avaya AA1419015-E5 |
Avago | Yes | Avago AFCT-5715PZ |
Ciena | Yes | Ciena OPT-LX |
F5 Networks | Yes | F5 Networks F5-UPG-SFPLX-R |
IBM | Yes | IBM BN-CKM-S-LX |
Juniper | Yes | Juniper EX-SFP-1GE-LX |
Intel | Yes | Intel TXN22120 |
DELL | Yes | DELL 320-2879 |
ProCurve | Yes | ProCurve J4859A |
HW | Yes | |
H3C | Yes | H3C SFP-GE-LX-SM1310 |
Arista | Yes | Arista SFP-1G-LX |
Brocade | Yes | Brocade E1MG-LX |
You can change sfp modules while your network is running. This hot-swappability helps you fix problems or upgrade your system without stopping your network. You keep your business online and avoid downtime.
You may see problems with compatibility in some networks. These problems can happen if you use third-party sfp modules with original equipment. Sometimes, the encoding does not match, and the module does not work. You can fix these problems by updating firmware and using the right coding.
Tip: Always check your switch or router manual for sfp compatibility before you buy a new module.
You can trust the LS-SM311G-10C SFP-1G-LX Module for strong performance, wide compatibility, and easy upgrades. You get a reliable 1g optical transceiver for your 1 gigabit ethernet network.
6️⃣ Deployment Considerations & Best Practices
Ensure the host device supports +3.3 V SFP modules and the target data rate of 1.25 Gbps.
Verify single-mode fibre quality and LC/UPC duplex connectors to maintain optical budgets and • margin for –23 dBm sensitivity.
Use correct temperature variant if the operating environment is outside 0-70 °C (industrial version required for -40 °C to +85 °C).
Monitor DOM readings regularly to detect potential signal degradation due to fibre bend, dust contamination or module ageing.
Maintain proper inventory of spares, as consistent module reuse supports network stability and simplifies maintenance.
7️⃣ Conclusion
For network designers, procurement managers and optical infrastructure engineers seeking a reliable, high-performance SFP transceiver for single-mode fibre links up to 10 km, the LINK-PP LS-SM311G-10C offers a compelling blend of cost-efficiency, standards compliance and monitoring capability. With full support for 1.25 Gbps, 1310 nm wavelength, LC/UPC duplex connectivity and digital diagnostics, it stands as a versatile choice for enterprise, data centre and metro edge applications.
When you source your optical modules for your next installation or upgrade, consider LS-SM311G-10C as a strong candidate — and integrate accordingly into your network design and inventory strategy.
For more details and to request a quote, visit the LINK-PP official store page on l-p.com.
8️⃣ See Also
Explore The LINK-PP 400G QSFP-DD LR4 Transceiver Technology
Comprehensive Guide To LINK-PP 10G DWDM Transceiver Features
Detailed Insights Into LINK-PP 10G SFP+ Transceiver Model
