All Products
Services
Support
About Us
Resources
Mind your business with a variety of trusted payment options.
Use order number or tracking number to check shipping status.
Get your quote fast and offer you more professional service.
Help manage your budget & expenditure better.
Free samples support, achieve your test results efficiently.
Professional team support and service, to solve your problems in time.
Ask us whatever you care, we will help you 24/7.
Get your quote fast and offer you more professional service.
Meet us and know our mission, belief, service and more.
Find our locations and get connected with us closely.
Quality management, testing, compatibility and global compliance.
Download ISO, CE, FCC, UL, RoHS and REACH certificates by product line.
Lab tour, optical test bed, compatibility tool and test requests.
Find out the latest news and events around l-p.com
Deep dive into technical guides, industry standards, and SFP compatibility insights.
Detailed product benchmarks and side-by-side comparisons to help you choose the right module.
Explore real-world connectivity solutions for data centers, enterprises, and telecom networks.
Essential tips on choosing data rates, transmission distances, and connector types.
New Customer? Create an account
The LINK-PP LS-SC31551G-03C is a high-performance 1G BiDi SFP transceiver designed for seamless Gigabit Ethernet connections. This commercial-grade BiDi optical module operates efficiently over single mode fiber, ensuring stable data transmission. Utilizing an advanced FP laser and PIN photodetector, this 1G fiber optic transceiver delivers reliable bandwidth for modern networking environments.
| LINK-PP Part Number | LS-SC31551G-03C | Vendor Name | LINK-PP |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1310nm-TX/1550nm-RX | Max Cable Distance | 3km |
| Connector | Simplex SC | Media |
SMF |
| Transmitter Type | FP | Receiver Type | PIN |
| TX Power | -9 to 0dBm | RX Power | -23 to -1dBm |
| Receiver Sensitivity | -20dBm | Receiver Overload | -3dBm |
| DOM Support | Yes | Operating Temperature Range |
0 to 70°C |
Designed with a standard hot-pluggable SFP footprint, this transceiver ensures easy network upgrades. It requires a single +3.3V power supply, maintaining low power consumption. As a strictly RoHS compliant solution, this 1G bidirectional module guarantees eco-friendly and highly efficient optical communications.
This robust 1G optical module offers exceptional performance for broadband access and enterprise networks. Functioning as a premium single mode transceiver, it maximizes fiber utilization by transmitting and receiving data simultaneously through a single optical cable.
Perfect for telecommunications infrastructure, this transceiver provides essential 1G connectivity for Baseband Unit (BBU) setups. It ensures stable, high-speed data flow in telecom networking, supporting seamless communication links between vital cellular network equipment and distribution nodes.
Utilizing advanced Wavelength Division Multiplexing, this module features a 1310nm FP transmitter and a 1550nm PIN receiver. This specific optical wavelength combination enables highly efficient two-way data traffic over just one single fiber strand.
Engineered for short to medium distance transmission, this optical transceiver supports a reliable 3km reach over single mode fiber. It is the perfect cost-effective solution for campus networks, building-to-building links, and local area network expansions.
Equipped with a durable simplex SC receptacle, this module easily connects with standard fiber optic connector types. The single SC port design saves valuable space and simplifies cabling infrastructure for high-density telecommunication and data center environments.
Compliant with the SFF-8472 standard, this transceiver features advanced Digital Optical Monitoring (DOM). The integrated DDM function allows network administrators to effortlessly track real-time parameters like temperature, voltage, and laser bias current to prevent link failures.
Our strictly regulated manufacturing process ensures this transceiver meets global optical industry standards. Every module undergoes rigorous assessments to guarantee absolute safety and superior operational excellence.
We implement a comprehensive quality control program during production. Extensive transceiver testing verifies that each optical module delivers flawless signal integrity and maximum durability under standard conditions.
This robust optical product proudly holds CE, FCC, and UKCA certified status. Furthermore, UL and REACH compliance confirms its exceptional electrical safety and strict adherence to environmental regulations.
Being fully SFP MSA compliant, this module guarantees seamless networking equipment compatibility. It functions flawlessly across various enterprise routers and network switches from major industry brands.
Strict fiber optic performance testing guarantees that every single module operates with exceptional stability, ensuring seamless and uninterrupted network connectivity.
We execute precise center wavelength verification to guarantee accurate 1310nm optical emissions.
Advanced optical signal integrity checks ensure the transmitter delivers clear and compliant data patterns.
Continuous data transmission accuracy evaluations are performed to confirm zero packet loss during operation.
Thermal cycling ensures reliable functionality across the standard commercial temperature range of 0°C to 70°C.
We prioritize secure module delivery to ensure your networking components arrive safely. Every shipment is carefully prepared to prevent transit damage.
Professional ESD safe packaging effectively protects internal electronic components from static discharges.
Sturdy and secure shipping materials absorb impacts to prevent physical hardware damage.
Quick inventory dispatch guarantees your network project timelines are consistently met.
We provide reliable worldwide optical module shipping to diverse international customer locations.
Network technicians can experience effortless plug and play installation with this module. Once inserted into a compatible switch, the simple single fiber connection immediately establishes a stable gigabit link, streamlining complex network deployments for faster operational readiness.
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 LS-SC31551G-03C 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 | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP | LINK-PP |
Data Rate (Max) | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps | 1.25Gbps |
Wavelength | 1310nm-TX/1550nm-RX | 1310nm-TX/1550nm-RX | 1310nm-TX/1550nm-RX | 1310nm-TX/1550nm-RX | 1310nm-TX/1550nm-RX | 1550nm-TX/1310nm-RX |
Connector | Simplex SC | Simplex SC | Simplex SC | Simplex SC | Simplex SC | Simplex SC |
Cable Distance (Max) | 3km | 40km | 20km | 10km | 3km | 3km |
Cable Type | SMF | SMF | SMF | SMF | SMF | SMF |
TX Power | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm | -9 to 0dBm |
Receiver Sensitivity | -20dBm | -24dBm | -23dBm | -23dBm | -20dBm | -23dBm |
Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | -40 to 85°C | 0 to 70°C |
Form Factor | SFP | SFP | SFP | SFP | SFP | SFP |
Transmitter Type | FP | DFB | FP | FP | FP | FP |
Receiver Type | PIN | PIN | PIN | PIN | PIN | PIN |
Receiver Overload | -3dBm | -3dBm | -3dBm | -3dBm | -3dBm | -3dBm |
DOM Support | Yes | Yes | Yes | Yes | Yes | Yes |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: Are these 1G BiDi SFPs natively compatible with Cisco Catalyst and Ubiquiti Edgeswitches without throwing unapproved module errors? By A***z on 2026-07-18
A: Yes! Our LS-SC31551G-03C module undergoes rigorous multi-brand switch compatibility testing. It works seamlessly as a plug-and-play solution with Cisco, Ubiquiti, Juniper, and other major OEM equipment without triggering unsupported transceiver warnings. By admin on 2026-07-18
Q: Do these optical transceivers comply with SFF-8472 for DDM/DOM monitoring, and are they RoHS certified for the EU market? By J***n on 2026-04-01
A: Yes, they are strictly RoHS compliant to meet global environmental standards. Furthermore, they fully support the SFF-8472 protocol, allowing your network engineers to accurately monitor real-time diagnostics like operating temperature, voltage, and Tx/Rx power parameters. By admin on 2026-04-01
Q: Does this transceiver require Single Mode Fiber (SMF) or Multi-Mode Fiber (MMF), and is the interface LC or SC? By D***s on 2026-01-03
A: This specific optical module (LS-SC31551G-03C) is designed exclusively for Single Mode Fiber (SMF) and is equipped with a Simplex SC connector. Please ensure your patch cables match this Simplex SC interface to achieve optimal 3km transmission distances. By admin on 2026-01-04
Q: We're an ISP looking to deploy hundreds of these for FTTH networks. Do you offer any bulk discount tiers for large B2B orders? By A***z on 2025-10-23
A: Absolutely. While our single unit price is highly competitive, we offer tiered wholesale discounts. For instance, orders over 1000 pieces drop the unit price significantly. You can also apply available volume codes directly at checkout for major procurement savings! By admin on 2025-10-23
{{reply_items.topic || reply_items.text}}By {{reply_items.author}}
{{ lpMoneyText(detail_data.displayed_price.unit_prefix, item.displayed_price.value || item.displayed_price.min, detail_data.displayed_price.unit_suffix) }}
United States
Carrier
CostDelivery TimeTracking
Company
CostTime
{{ shipitem.name }}
{{ isFreeShipping(shipitem)? 'Free Shipping' : lpMoneyText(detail_data.displayed_price.unit_prefix, shipitem.price, detail_data.displayed_price.unit_suffix) }} To Be Negotiated {{shipitem.datemin}}-{{shipitem.datemax}} days Available
{{parseInt(detail_data.left_num) ? detail_data.left_num +' in Stock' :detail_data.zeroStockOrder==0?'Out of Stock':'Available'}}