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The LINK-PP L9-SC31551G-20PPI5 is a high-performance 1.25G BiDi 1x9 optical transceiver engineered for robust industrial applications. It features a 5V power supply, FP laser, and PIN detector, operating across extreme temperatures from -40°C to +85°C. Utilizing a PECL data interface, this module guarantees stable signal transmission for demanding fiber optic links.
| LINK-PP Part Number | L9-SC31551G-20PPI5 | 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 | PECL | Signal Detect | PECL |
| Power Supply | 5V | Operating Temperature Range | -40 to +85℃ |
This industrial-grade transceiver delivers exceptional reliability with its 5V power requirement and wide operating temperature range. The L9-SC31551G-20PPI5 supports a 20km transmission distance and utilizes advanced WDM technology, making it an ideal optical module for gigabit ethernet and continuous digital video transmission.
Featuring an industry-standard 9-pin through-hole footprint, the L9-SC31551G-20PPI5 ensures secure and reliable PCB mounting. This classic 1x9 package design offers excellent mechanical stability, preventing connection drops in high-vibration environments commonly found in industrial networking equipment.
Operating at a fast 1.25Gbps data rate, this single-fiber optical module provides high-speed connectivity crucial for modern industrial control systems. The L9-SC31551G-20PPI5 effectively minimizes fiber cabling costs while maximizing network throughput and operational efficiency.
Built with advanced Wavelength Division Multiplexing (WDM) technology, the L9-SC31551G-20PPI5 transmits at 1310nm via an FP laser and receives at 1550nm using a PIN detector, enabling efficient, full-duplex bi-directional communication over a single strand of fiber.
Designed for medium-reach optical networks, this 1.25G BiDi transceiver guarantees stable data delivery up to 20 kilometers over 9/125μm single-mode fiber. It is perfectly suited for extending campus networks, factory automation links, and integrated security systems.
The L9-SC31551G-20PPI5 incorporates a robust Simplex SC optical interface, allowing for quick, snap-in fiber connections. Its optimized internal shielding ensures a low EMI design, complying with rigorous electromagnetic interference standards to maintain crystal-clear signal integrity.
The LINK-PP L9-SC31551G-20PPI5 1.25G 1x9 transceiver is fully certified to meet global industry standards, guaranteeing unmatched safety, environmental compliance, and long-term operational reliability for enterprise applications.
Every L9-SC31551G-20PPI5 undergoes a comprehensive quality control program. Our advanced factory screening includes rigorous physical and optical assessments to ensure maximum durability before leaving the production line.
This optical module proudly holds CE, FCC, UKCA, UL, and REACH certifications. It features exceptional EMI suppression and meets strict Class 1 ESD electrostatic discharge immunity requirements.
Fully compliant with the ITU-T G.957 standard, the L9-SC31551G-20PPI5 guarantees seamless protocol compatibility and effortless PCB integration for Gigabit Ethernet and complex fiber channel routing infrastructure.
To validate its industrial-grade capabilities, the L9-SC31551G-20PPI5 is subjected to a series of intensive electro-optical tests, ensuring flawless functionality in extreme conditions.
Evaluates the FP laser's 1310nm wavelength accuracy and output spectrum width consistency.
Verifies the optical waveform against ITU-T standards for optimal signal integrity and low jitter.
Confirms zero packet loss and a flawless 1.25Gbps data transmission rate over 20km.
Guarantees continuous, stable operation across extreme industrial temperatures ranging from -40°C to +85°C.
We provide secure, globally optimized shipping solutions for the L9-SC31551G-20PPI5, ensuring your industrial optical transceivers arrive in pristine condition and completely on schedule.
Each transceiver is sealed in premium ESD-safe bags to prevent electrostatic damage.
Enclosed in custom-fitted, shock-absorbing materials to withstand impacts during transit.
Orders are verified and dispatched rapidly to minimize your project lead times.
Partnered with trusted international couriers for reliable worldwide shipping and customs clearance.
To install the LINK-PP L9-SC31551G-20PPI5 1.25G 1x9 transceiver, directly solder the 9-pin module onto your PCB layout. Apply a stable 5V power supply, then plug a single-mode fiber into the Simplex SC interface to establish the bi-directional optical link.
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 L9-SC31551G-20PPI5 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 | 1310nm | 850nm | 1310nm-TX/1550nm-RX | Tx1550nm/Rx1310nm |
Cable Distance (Max) | 20km | 10km | 550m | 500m | 20km | 20km |
Operating Temperature | -40 to +85℃ | 0 to 70°C | -40 to 85°C | -40 to 85°C | -40 to +85℃ | -40 to +85℃ |
Fiber Type | SMF | SMF | MMF | MMF | SMF | SMF |
Fiber Interface | Simplex SC | Duplex SC | Simplex SC | Simplex SC | ||
Form Factor | 1x9 | 1x9 | 1x9 | 1x9 | 1x9 | 1x9 |
Transmitter Type | FP | FP | FP | VCSEL | FP | 1310nm FP |
Receiver Type | PIN | PIN | PIN | PIN | PIN | PIN |
Differential Input/ Output | PECL | CML | CML | (LV)PECL | PECL | |
Signal Detect | PECL | TTL | TTL | (LV)PECL | PECL | |
Power Supply | 5V | 3.3V | 3.3V | 3.3V | 5V |
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