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-BL31551G-10I 1G BiDi SFP transceiver delivers high-performance networking with its compact small form-factor pluggable design. This industrial-grade SFP optical module supports reliable gigabit data rates, ensuring efficient single-fiber bidirectional transmission over long distances. Engineered for harsh environmental conditions, it meets strict industrial standards, providing a cost-effective solution for modern enterprise network architectures.
| LINK-PP Part Number | LS-BL31551G-10I | Vendor Name | LINK-PP |
| Form Factor | SFP | Max Data Rate | 1.25Gbps |
| Wavelength | 1310nm-TX/1550nm-RX | Max Cable Distance | 10km |
| Connector | Simplex LC | Media | SMF |
| Transmitter Type | FP | Receiver Type |
PIN |
| TX Power | -9 to 0dBm | RX Power | -23 to -1dBm |
| Receiver Sensitivity | <-23dBm | DOM Support | Yes |
| Operating Temperature Range | -40 to 85°C | Protocols |
Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
This industrial-grade 1G BiDi SFP transceiver features an optimized design for seamless hot-swapping functionality. It includes digital optical monitoring capabilities for real-time diagnostics, a simplex LC connector to minimize fiber cabling infrastructure costs, and a rugged layout built to withstand extreme temperatures in demanding industrial environments.
The LINK-PP LS-BL31551G-10I 1G SFP optical module is designed for gigabit ethernet applications. It offers high-speed transmission efficiency and exceptional structural reliability, making it ideal for robust industrial networking deployments.
Providing seamless 1G connectivity, the LS-BL31551G-10I transceiver satisfies strict telecom network requirements. It ensures stable, long-distance broadband transmission, allowing telecommunication service providers to optimize infrastructure capacity and enhance network operational efficiency.
Operating with a 1310nm-TX transmitter and a 1550nm-RX receiver, the LS-BL31551G-10I optical module utilizes WDM technology. This enables simultaneous bidirectional data traffic over a single fiber strand, doubling fiber utilization efficiency.
Designed for long-range deployment, this LS-BL31551G-10I SFP module supports transmission distances up to 10km over single-mode fiber. It provides adequate optical power budget for stable connections across extensive factory sites or metropolitan networks.
Equipped with a standard simplex LC interface, the LS-BL31551G-10I module ensures stable alignment and low insertion loss. The compact single-fiber LC design greatly simplifies fiber optic patch cord management in dense enterprise switch racks.
Featuring built-in DOM functionality, the LS-BL31551G-10I optical transceiver allows network administrators to monitor operating temperature, voltage, and laser power in real time. This proactive diagnostics capability ensures maximum uptime and prevents network failures.
The LINK-PP LS-BL31551G-10I 1G SFP module complies with strict international compliance standards, ensuring proper hardware certification, safety operations, and standard environmental sustainability across global industrial networks.
Each LS-BL31551G-10I transceiver undergoes a meticulous quality testing program, validating hardware endurance and multi-vendor compatibility before shipment to meet strict enterprise performance requirements.
Holding standard industrial quality certifications including CE, FCC, and RoHS, the LS-BL31551G-10I ensures safety, reliable operational integrity, and strict environmental compliance for global telecommunications equipment.
Fully compliant with SFP MSA standards, the LS-BL31551G-10I is certified for reliable host-device compatibility, ensuring plug-and-play operations with switches from Cisco, Mikrotik, and other brands.
Our comprehensive, rigorous testing procedures guarantee that every SFP transceiver delivers optimal data rate performance, extreme durability, and absolute network communication reliability.
This test verifies precise 1310nm and 1550nm wavelength stability and central frequency alignment.
It analyzes optical signal waveforms to ensure clean, jitter-free gigabit data transmission quality.
This process confirms zero-packet loss data integrity under full 1.25 Gbps network loads.
It validates stable SFP operations across wide industrial temperatures from -40°C to +85°C.
We implement highly secure logistics practices to guarantee safe product shipping for every LINK-PP LS-BL31551G-10I 1G SFP transceiver worldwide.
Every single optical module is sealed in anti-static protective packaging.
Thick foam shielding provides exceptional shock-resistant transport protection during international shipping.
Efficient internal workflows guarantee fast order processing and rapid dispatch from warehouses.
Reliable express partnerships facilitate global logistics and fast international delivery directly to customers.
The LINK-PP LS-BL31551G-10I 1G SFP usage demonstration illustrates simple installation into a network switch. This guide highlights direct plug-and-play setup, fiber cable connection, and successful link status verification via the system management interface.
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-BL31551G-10I 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 | 1310nm-TX/1550nm-RX |
Connector | Simplex LC | Simplex LC | Simplex LC | Simplex LC | Simplex LC | Simplex LC |
Cable Distance (Max) | 10km | 20km | 60km | 3km | 40km | 2km |
Cable Type | SMF | SMF | SMF | SMF | SMF | SMF |
TX Power | -9 to 0dBm | -9 to 0dBm | -5 to 0dBm | -15 to -8dBm | -5 to 0dBm | -15 to -8dBm |
Receiver Sensitivity | -23 to -1dBm | -23 to -1dBm | -23 to -1dBm | -23 to -1dBm | -23 to -1dBm | -23 to -1dBm |
Operating Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | 0 to 70°C |
Form Factor | SFP | SFP | SFP | SFP | SFP | SFP |
Transmitter Type | FP | FP | DFB | FP | DFB | FP |
Receiver Type | PIN | PIN | PIN | PIN | PIN | PIN |
DOM Support | Yes | Yes | Yes | Yes | Yes | |
Protocols | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant | Fast Ethernet, Gigabit Fibre Channel, MSA Compliant |
| Pictures | ID# | Description | Price | Stock | Add to Cart |
Q: I'm an IT procurement manager looking to deploy these in 50+ outdoor cabinets. Do you offer net terms or volume discounts for orders over 100 units? By J***z on 2026-03-11
A: Absolutely. For bulk data center deployments or large enterprise procurement, we offer scaled discounts, and we also support Net terms to help manage your budget. Please contact our sales team for a custom quote. By admin on 2026-03-11
Q: Can I use this 1310nm-TX/1550nm-RX optic with Multimode Fiber (MMF), or is it strictly for Single Mode Fiber (SMF) connections? By L***s on 2026-01-06
A: This particular transceiver module is engineered specifically for Single Mode Fiber (SMF) up to 10km. Using it with Multimode Fiber (MMF) is not recommended, as it will cause significant signal loss and severely limit your transmission distance. By admin on 2026-01-06
Q: We've had major delays with other vendors recently. If we order 500 pcs for our European data center, what is the expected lead time and supply stability? By K***n on 2025-02-14
A: We maintain robust inventory for our industrial SFP modules. An order of 500 pcs typically processes and ships within 3 days. Transit time to Europe via standard express shipping is usually 3 to 6 business days, ensuring stable and fast delivery for your project deadlines. By admin on 2025-02-14
Q: For our government contract, we need to ensure all optical transceivers meet environmental and safety regulations. Are these CE, RoHS, and FDA certified? By C***s on 2025-02-09
A: Yes, all our transceivers undergo a strict qualification process. They meet Class 1 FDA laser safety standards and are fully certified for CE, RoHS, REACH, and FCC. They are completely safe and compliant for global enterprise and government deployments. By admin on 2025-02-09
Q: Hi supplier, we are running a mix of Cisco Catalyst and Huawei switches. Will this 1G BiDi SFP work across both brands without throwing unapproved transceiver errors? By L***n on 2025-01-04
A: Yes! Our modules are 100% MSA compliant, and we rigorously test OEM compatibility in our lab. They provide a plug-and-play experience on both Cisco and Juniper gear without any coding headaches or system warnings. By admin on 2025-01-04
{{reply_items.topic || reply_items.text}}By {{reply_items.author}}
{{ item.displayed_price.unit_prefix }} {{ item.displayed_price.value || item.displayed_price.min }}
United States
Carrier
CostDelivery TimeTracking
Company
CostTime
{{ shipitem.name }}
{{ (shipitem.isfree =='1' || shipitem.price == 0)? 'Free Shipping' :detail_data.currency.unit_prefix+shipitem.price }} 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'}}