Specifications of LINK-PP 155M BiDi 1x9 Transceiver
The LINK-PP L9-SC315501-20PTI is an industrial-grade 155M BiDi 1x9 transceiver engineered for reliable data transmission over a 20km distance. Operating with a 1310nm-TX/1550nm-RX wavelength over single-mode fiber, it features a Simplex SC interface. This 3.3V module perfectly supports SDH STM-1, SONET OC-3, and Fast Ethernet applications in extreme environments.
LINK-PP Part Number
L9-SC315501-20PTI
Vendor Name
LINK-PP
Form Factor
1x9
Max Data Rate
155Mbps
Wavelength
1310nm-TX/1550nm-RX
Max Cable Distance
20km
Fiber Interface
Simplex SC
Fiber Type
SMF
Transceiver Type
FP
Receiver Type
PIN
Differential Input/Output
PECL
Signal Detect
TTL
Supply Voltage
3.3V
Operating Temperature Range
-40 to 85°C
Key Features of LINK-PP L9-SC315501-20PTI
Key features of the L9-SC315501-20PTI include an integrated bi-directional optical subassembly, a wide industrial operating temperature range from -40°C to 85°C, and exceptional EMI shielding. This multi-sourced module provides certified ESD protection and RoHS compliance for rugged networking equipment.
Standard 1x9 Package for Reliable PCB Mounting
Designed with a standard 9-pin through-hole footprint, this module ensures secure PCB mounting. It withstands wave soldering temperatures up to 260°C, providing permanent, vibration-resistant connectivity for embedded telecom and industrial switches.
155M Single-Fiber Connectivity for Fast Ethernet & SDH
Delivering a stable 155Mbps data rate, this single-fiber optical module is fully compliant with ITU-T G.957 standards. It is the ideal optical component for upgrading legacy SDH STM-1 networks, SONET OC-3 systems, and Fast Ethernet architectures.
WDM Technology: 1310nm-TX/1550nm-RX Bi-Directional Link
Utilizing advanced Wavelength Division Multiplexing (WDM), the L9-SC315501-20PTI transmits at 1310nm and receives at 1550nm simultaneously. This BiDi transceiver maximizes fiber capacity, significantly reducing cabling costs while ensuring high-quality optical signal conversion.
Stable 20km Transmission for Medium-Reach Networks
Equipped with a high-performance FP laser and PIN photodetector, this transceiver achieves error-free 20km transmission over single-mode fiber. It offers a transmit power of -15 to -8dBm and exceptional receiver sensitivity of -32dBm.
Simplex SC Interface with Low EMI Design
The integrated Simplex SC optical interface provides a secure, snap-in connection for fiber patch cables. Its specialized metallic housing offers very low EMI, ensuring signal integrity without requiring an external chassis enclosure for the transceiver.
LINK-PP L9-SC315501-20PTI 155M 1x9 Certification
The LINK-PP L9-SC315501-20PTI holds comprehensive global certifications, confirming its compliance with stringent international safety, environmental, and performance standards required for modern industrial telecom infrastructure.
Every optical transceiver undergoes a meticulous quality control program in our ISO-certified facility. This testing ensures each unit delivers optimal optical characteristics and long-term hardware reliability.
This module is fully compliant with RoHS, CE, and FDA CDRH Class 1 eye safety standards, while meeting IEC61000-4-2 Class 2 requirements for electrostatic discharge immunity.
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
Certified for seamless PCB wave soldering, this 155M transceiver guarantees native interoperability with standard PECL and TTL interfaces, perfectly matching ITU-T protocol requirements for SDH equipment.
Rigorous Testing Ensures Reliable 1x9 Performance
We conduct rigorous factory testing on the L9-SC315501-20PTI to guarantee flawless optical performance and stable continuous operation under harsh network conditions.
Optical Spectrum Test
Verifies the precise 1310nm central wavelength and ensures the optical spectrum meets standard requirements.
Eye Pattern Test
Confirms the optical signal strictly aligns with ITU-T G.957 STM-1 telecommunication standards.
Bit Error Rate Test
Guarantees accurate 155Mbps data transmission over 20km single-mode fiber with absolutely zero packet loss.
Temperature Test
Validates the industrial-grade module's flawless functionality across extreme temperatures ranging from -40°C to 85°C.
Product Shipping for LINK-PP L9-SC315501-20PTI 155M 1x9
We utilize specialized packaging and efficient logistics networks to ensure your L9-SC315501-20PTI 155M 1x9 modules arrive safely and promptly at your facility.
Anti-Static Protective Packaging
Modules are sealed in ESD-safe trays to prevent electrostatic damage.
Shock-Resistant Transport Protection
Durable outer cartons absorb physical impacts during complex transit routes.
Fast Order Processing and Dispatch
Automated warehouse systems guarantee rapid fulfillment and immediate order dispatch.
Global Logistics and International Delivery
Trusted courier partnerships ensure reliable, trackable delivery to worldwide destinations.
To mount the 1x9 transceiver, align the 9-pin through-hole footprint with your PCB motherboard. Insert the optical transceiver firmly, then apply wave soldering at maximum 260°C for 10 seconds to create a permanent, secure connection for industrial network hardware.
L9-SC315501-20PTI 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-SC315501-20PTI 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:
Because the L9-SC315501-20PTI transmits at 1310nm and receives at 1550nm (1310nm-TX/1550nm-RX), you must pair it on the opposite end with a 155Mbps BiDi 1x9 transceiver that transmits at 1550nm and receives at 1310nm (such as the industrial L9-SC553101-20PPI or commercial L9-SC553101-20PPC) over a single-mode Simplex SC fiber. By
admin
A:
Yes, we provide tiered B2B wholesale discounts starting at 50, 100, and 500+ units. Standard stock ships within 2–3 business days, and we can lock in scheduled blanket pricing for ongoing production runs. By
admin
A:
Standard 1x9 SIP transceivers use a 9-pin through-hole footprint and do not have an I2C bus for digital DDM/DOM. Instead, Pin 4 provides a hardware TTL Signal Detect (SD) output that goes logic HIGH when a valid optical signal is received and LOW on loss of signal. By
admin
A:
Yes, its 155Mbps optical path supports both 100Mbps Fast Ethernet (125Mbps 4B/5B encoded) and telecom SDH STM-1 / SONET OC-3 (155.52Mbps) protocols, using a standard 3.3V supply and PECL data / TTL Signal Detect pinout. By
admin
A:
Yes. The L9-SC315501-20PTI is an industrial-grade module rated for -40°C to +85°C operating temperature, making it ideal for unheated substations, roadside enclosures, and harsh outdoor telemetry cabinets. By
admin
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491436
576538
L***t
Japan
Verified
Purchase
5 .0
2026-09-12
We integrated fifty L9-SC315501-20PTI 1x9 BiDi transceivers into our railway wayside SCADA boards. Over a 19km OS2 single-mode fiber span, Rx sensitivity and 1310nm Tx power exceeded ITU-T specs with zero CRC errors. ⚡
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491436
576547
D***s
Germany
Verified
Purchase
5 .0
2026-08-16
Our telecom maintenance team replaced aging 155Mbps STM-1 optical modules in unheated Nordic base station backhaul huts with these industrial LINK-PP units. The 3.3V power draw is minimal and the Simplex SC locks securely.
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491436
243329
M***e
Hong Kong
Verified
Purchase
5 .0
2024-10-31
One of my friends think highly of LINK-PP, so I thought I may have a try. I am very pleased with the service I received and the products are fantastic with a really cheap price. Also, my order arrived in a very timely manner. Great!
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491436
243320
T***y
Japan
Verified
Purchase
5 .0
2024-08-23
I have ordered various items over the past couple of years, goods always arrive in a timely manner. They are well packed and do exactly what you expect them to do. Great value for money and efficient service.
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491436
243327
S***s
Finland
Verified
Purchase
5 .0
2024-03-12
LINK-PP always has what I need or what I want at a great price.I was able to get my questions answered by chatting with a customer rep and then quickly make my order. Awesome service. Best experience. Fast shipping is very attractive.
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