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L9-SD311G-20PPC is a 1G SDH/SONET 1×9 optical transceiver operating on a single +3.3V power supply and packaged with a duplex SC receptacle. Integrated with a 1310nm FP laser and a PIN photodiode receiver, it provides stable optical data transmission over 9/125μm single-mode fiber (SMF) for distances up to 20km.
| LINK-PP Part Number | L9-SD311G-20PPC | Vendor Name | LINK-PP |
| Form Factor | 1x9 | Max Data Rate | 1.25Gbps |
| Wavelength | 1310nm | Max Cable Distance | 20km |
| Connector | Duplex SC | Fiber Type | SMF |
| Transmitter Type | FP | Receiver Type | PIN |
| Receiver Sensitivity | <-23dBm | Supply Voltage | 3.3V |
| Operating Temperature Range | 0 to 70°C | Application |
WDM Application、SDH STM-8/ SONET OC-24、Gigabit Ethernet |
LINK-PP L9-SD311G-20PPC optical transceiver combines classic 1×9 pin packaging with 1 Gbps speed and a reliable 1310nm optical setup. Every design element — from its 20km reach to its duplex SC port — is built directly around standard 1×9 board layouts for stable fiber communication.
This pin-through module uses an industry-standard 1×9 footprint with direct PECL data inputs and outputs for easy circuit board soldering. It also provides a clear LVPECL signal-detect pin so the host board can instantly check link status.
Delivering a stable 1Gbps data rate, this 1×9 module easily handles the continuous traffic requirements of core SONET/SDH backbones. The consistent speed helps legacy telecom infrastructure pass heavy optical data loads smoothly from point to point.
The internal FP laser transmitter emits light at the 1310nm window to keep optical dispersion and loss very low. By matching this wavelength, the module keeps light signals clean as they travel down single-mode fiber lines.
Strong optical link power allows this 1×9 transceiver to push data across 9/125μm single-mode fiber for up to 20km. This span lets technicians connect distant stations directly without adding extra optical boosters along the route.
A built-in duplex SC optical connector provides a firm, click-to-lock fit on the front panel of the 1×9 package. Its snap-in housing keeps patch cords firmly seated to prevent accidental disconnections during routine maintenance.
LINK-PP L9-SD311G-20PPC complies with major international standards, including ISO 9001, CE, RoHS, and FCC guidelines. These credentials ensure the 1×9 optical transceiver satisfies strict global rules for environmental safety, manufacturing quality, and electromagnetic limits.
Every 1×9 optical transceiver passes thorough electrical and optical checks before leaving the factory. Technicians measure signal integrity, optical output power, and receiver sensitivity to confirm reliable daily field performance.
Official industry certificates confirm this 1×9 transceiver meets all essential electrical and environmental standards. It provides proven build quality, ensuring the module works safely and reliably in any standard telecom setup.
The standardized 1×9 pin layout aligns perfectly with common circuit board drill patterns across various hardware brands. System engineers can solder the module onto host boards easily without modifying existing trace routes or mechanical layouts.
Every 1×9 optical transceiver undergoes thorough hardware inspections to guarantee stable link quality and long service life. To explore our complete quality verification procedures, please visit the LINK-PP Test Support Center.
Verify 1310nm optical output power and laser wavelength stability precisely.
Inspect signal waveform quality and extinction ratio against standard masks.
Ensure error-free 1G data transmission across simulated 20km fiber links.
Check continuous transceiver operation and stability across wide thermal cycles.
LINK-PP ensures every 1G 1×9 optical transceiver is packed securely to prevent any transit damage. Fast dispatch workflows and dependable worldwide carrier partnerships guarantee safe delivery directly to your facility.
Prevent electrostatic discharge from damaging internal transceiver electronic components.
Safeguard optical components against heavy mechanical impacts throughout international transit.
Handle outgoing module orders promptly to speed up customer project schedules.
Deliver optical modules worldwide using trusted international express freight carriers.
Solder the L9-SD311G-20PPC 1×9 optical transceiver securely to the mainboard, connect standard duplex SC single-mode fibers, and power the 3.3V rail. It immediately handles 1Gbps data payloads within legacy SONET/SDH backbone infrastructures, maintaining clean optical signals across critical carrier trunk lines.
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Professional guidance to help you select the optimal L9-SD311G-20PPC module for your network design and application needs.
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Ongoing technical support throughout the product lifecycle, delivering long-term stability for 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 | 1310nm | 850nm | 1310nm | 1310nm | 1310nm |
Connector | Duplex SC | Duplex SC | Duplex SC | Duplex SC | Duplex SC | Duplex SC |
Cable Distance (Max) | 20km | 10km | 500m | 20km | 20km | 20km |
Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | -40 to 85°C |
Fiber Type | SMF | SMF | MMF | SMF | SMF | SMF |
Form Factor | 1x9 | 1x9 | 1x9 | 1x9 | 1x9 | 1x9 |
Transmitter Type | FP | FP | VCSEL | FP | FP | |
Receiver Type | PIN | PIN | PIN | PIN | PIN | |
Supply Voltage | 3.3V | 3.3V (Default) / 5V (Optional) | 3.3V (Default) / 5V (Optional) | 3.3V | 3.3V (Default) / 5V (Optional) | |
Application | WDM Application、SDH STM-8/ SONET OC-24、Gigabit Ethernet | Gigabit Ethernet Fiber Channel Digital Video Transmission System Other Optic Link | Gigabit Ethernet Fiber Channel Digital Video Transmission System Other Optic Link | WDM Application SDH STM-8/ SONET OC-24 Gigabit Ethernet | Gigabit Ethernet Fiber Channel Digital Video Transmission System Other Optic Link |
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