Specifications of LINK-PP 1.25G BiDi 1x9 Transceiver
The LINK-PP L9-SC31551G-20PPC is a high-performance 1.25G BiDi 1x9 transceiver designed for robust optical data links. Operating on a 3.3V power supply, this commercial-grade module supports 0℃ to 70℃ temperatures. It utilizes an advanced 1310nm FP laser transmitter and 1550nm PIN receiver, ensuring reliable 20km transmission distances via a simplex SC optical interface.
LINK-PP Part Number
L9-SC31551G-20PPC
Vendor Name
LINK-PP
Form Factor
1x9
Max Data Rate
1.25Gbps
Wavelength
1310nm-TX/1550nm-RX
Max Cable Distance
20km
Fiber Interface
Simplex SC
Fiber Type
SMF
Transmitter Type
FP
Receiver Type
PIN
Differential Input/ Output
(LV)PECL
Signal Detect
(LV)PECL
Power Supply
3.3V
Operating Temperature Range
0 to +70℃
Key Features of LINK-PP L9-SC31551G-20PPC
The LINK-PP L9-SC31551G-20PPC optical module delivers exceptional gigabit performance through its classic 1x9 SIP footprint. Key highlights include LVPECL differential data inputs and signal detect outputs, ITU-T G.957 compliance, and industry-leading Class 1 laser safety, making it ideal for scalable industrial and enterprise networking solutions.
Standard 1x9 Package for Reliable PCB Mounting
Featuring a traditional 9-pin through-hole footprint, the L9-SC31551G-20PPC ensures secure and permanent PCB integration. This ruggedized 1x9 form factor provides superior mechanical stability and vibration resistance, perfectly suited for demanding telecommunication equipment and dedicated media converter designs.
1.25G Single-Fiber Connectivity for Gigabit Ethernet & SDH
Engineered for seamless protocol versatility, this 1.25Gbps optical transceiver fully supports Gigabit Ethernet and Fiber Channel deployments. The transceiver guarantees smooth network upgrades and high-bandwidth data transmission, enabling efficient fiber utilization across modern optical communication systems.
WDM Technology: 1310nm-TX/1550nm-RX Bi-Directional Link
Utilizing advanced Wavelength Division Multiplexing, the LINK-PP L9-SC31551G-20PPC transmits at 1310nm and receives at 1550nm over a single strand of fiber. This BiDi networking technology effectively halves cabling infrastructure costs while maintaining uncompromising signal integrity.
Stable 20km Transmission for Medium-Reach Networks
Equipped with a highly sensitive PIN photodiode and a powerful FP laser, this 1x9 BiDi module easily achieves stable 20km reach over 9/125μm single-mode fiber. It delivers dependable optical connectivity for campus networks and metropolitan area deployments.
Simplex SC Interface with Low EMI Design
The integrated Simplex SC receptacle provides a secure, snap-in optical connection with minimal insertion loss. Furthermore, the specialized housing architecture of the L9-SC31551G-20PPC significantly reduces electromagnetic interference, ensuring pristine data transmission in high-density rack environments.
LINK-PP L9-SC31551G-20PPC 1.25G 1x9 Certification
Every LINK-PP L9-SC31551G-20PPC module undergoes comprehensive validation to meet stringent international standards, guaranteeing maximum reliability, user safety, and environmental responsibility for global gigabit network infrastructure projects.
Our manufacturing facilities implement a rigorous quality assurance protocol. Each 1x9 transceiver is individually inspected and tested to verify critical optical parameters, ensuring consistent component longevity and field dependability.
This optical module holds complete CE, FCC, UKCA, UL, and REACH certifications. It features superior ESD protection and complies with stringent EMI regulations, exceeding industry baseline safety requirements.
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.
Certified for Seamless PCB Integration & Protocol Compatibility
Verified for broad protocol support, the L9-SC31551G-20PPC natively integrates with diverse communication equipment. Its standard footprint guarantees effortless PCB mounting and robust electrical compatibility across various hardware platforms.
Rigorous Testing Ensures Reliable 1x9 Performance
We execute advanced laboratory evaluations on the L9-SC31551G-20PPC to confirm its uncompromising optical performance and durability under continuous data transmission scenarios.
Optical Spectrum Test
We verify the 1310nm transmission wavelength and precise optical output power consistency.
Eye Pattern Test
ITU-T G.957 compliant eye diagram testing ensures optimal signal clarity and minimal jitter.
Bit Error Rate Test
Extended BER testing guarantees flawlessly accurate 1.25Gbps data processing over the 20km link.
Temperature Test
Thermal cycling confirms stable commercial operation across the entire 0℃ to 70℃ range.
Product Shipping for LINK-PP L9-SC31551G-20PPC 1.25G 1x9
We employ professional packaging and logistics strategies to deliver your L9-SC31551G-20PPC optical transceivers safely, ensuring they arrive in pristine, deployment-ready condition.
Anti-Static Protective Packaging
Each transceiver is sealed in premium ESD-safe shielding bags for maximum protection.
To deploy the LINK-PP L9-SC31551G-20PPC, properly align the 9 pins with your PCB and manually solder them for a secure connection. Next, insert a single-mode fiber patch cord into the Simplex SC port to activate the 1.25G BiDi link.
L9-SC31551G-20PPC Technical Support
LINK-PP provides professional technical support, including pre-sales consultation, compatibility verification, and post-deployment troubleshooting to ensure smooth network operation.
Pre-Sales Technical Consultation
Professional technical guidance to help customers select the most suitable L9-SC31551G-20PPC modules based on network architecture and application requirements.
Compatibility Verification Support
Compatibility checks and validation to ensure seamless operation with Cisco switches and other supported networking platforms.
Deployment & Installation Assistance
Step-by-step support for installation, configuration, and initial deployment to ensure stable and correct operation.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle to ensure reliable performance in enterprise and carrier-grade networks.
A:
No attenuator is needed for 20km-rated modules! Its 1310nm FP laser launch power (-9 to -3 dBm) and PIN receiver overload threshold (-3 dBm) allow direct connection over short 1m–10m patch cords without saturation. By
admin
A:
Yes! The L9-SC31551G-20PPC complies with ITU-T G.957, Gigabit Ethernet 1.25Gbps optical specifications, and the 1x9 SIP Multi-Source Agreement (MSA), ensuring seamless interoperability across multi-vendor Gigabit fiber switches and media converters. By
admin
A:
The L9-SC31551G-20PPC transmits at 1310nm and receives at 1550nm at 1.25Gbps. Pair it at the opposite end with a complementary 1.25G 20km BiDi 1x9 transceiver that transmits at 1550nm and receives at 1310nm (such as the L9-SC55311G-20PPC) over a single-mode Simplex SC fiber. By
admin
A:
It operates on a single +3.3V DC supply and provides differential (LV)PECL data inputs/outputs and an (LV)PECL Signal Detect output on Pin 4. By
admin
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497754
576674
C***i
Bangladesh
Verified
Purchase
5 .0
2026-09-23
We use the L9-SC31551G-20PPC on our custom 1.25G optical aggregation blades for metro data center interconnect. The 1310nm-TX/1550nm-RX WDM optics deliver error-free Gigabit transmission over 20km of OS2 single-mode fiber.
Singapore · English · SGD
