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Multimode 1.25G 850nm Duplex SC 500m MMF 1x9 Optical Transceiver Module

Product Description

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We draw on over 10 years of experience in chips and modules to integrate fast speeds, small size, power savings, and high performance in every module.

Provides a full series of optical modules for fixed access, wireless access, carrier Ethernet, wavelength division multiplexing (WDM), and data communication networks.

Optical Transceiver Solutions
Multimode 1.25G 850nm Duplex SC 500m MMF 1x9 Optical Transceiver Module
Technical Specifications
Part No. L9-SD851G-S5CTC
Form Factor 1x9
Max Data Rate 1.25Gbps
Wavelength 850nm
Max Cable Distance 500m
Connector Duplex SC
Media MMF
Transmitter Type VCSEL
Receiver Type PIN
TX Power -10 ~ -3dBm
Receiver Sensitivity < -23dBm
Protocols Multi-sourced 1×9 protocol.
Temperature Range 0 to 70°C
Warranty 5 Years
Sample Available
1x9 Transceiver Ordering Information
Model Description
L9-SD312M-02TTC5 1x9 2Mbps, 1310nm(FP), 2km, MMF, Duplex SC, 0°C-70°C
L9-SD312M-02TTI5 1x9 2Mbps, 1310nm(FP), 2km, MMF, Duplex SC, -40°C-85°C
L9-SD312M-20TTC5 1x9 2Mbps, 1310nm(FP), 20km, SMF, Duplex SC, 0°C-70°C
L9-SD312M-20TTI5 1x9 2Mbps, 1310nm(FP), 20km, SMF, Duplex SC, -40°C-85°C
L9-SD312M-40TTC5 1x9 2Mbps, 1310nm(FP), 40km, SMF, Duplex SC, 0°C-70°C
L9-SD312M-40TTI5 1x9 2Mbps, 1310nm(FP), 40km, SMF, Duplex SC, -40°C-85°C
L9-SD851G-S5CTC 1x9 1.25Gbps, 850nm(Vcsel), 500m, MMF, Duplex SC, 0°C-70°C
L9-SD311G-S5CTC 1x9 1.25Gbps, 1310nm(FP), 550m, MMF, Duplex SC, 0°C-70°C
L9-SD311G-10CTC 1x9 1.25Gbps, 1310nm(FP), 10km, SMF, Duplex SC, 0°C-70°C
L9-SD311G-20CTC 1x9 1.25Gbps, 1310nm(FP), 20km, SMF, Duplex SC, 0°C-70°C
L9-SD311G-40CTC 1x9 1.25Gbps, 1310nm(DFB), 40km, SMF, Duplex SC, 0°C-70°C
L9-SD551G-20CTC 1x9 1.25Gbps, 1550nm(DFB), 20km, SMF, Duplex SC, 0°C-70°C
L9-SD551G-40CTC 1x9 1.25Gbps, 1550nm(DFB), 40km, SMF, Duplex SC, 0°C-70°C
L9-SD551G-80CTC 1x9 1.25Gbps, 1550nm(DFB), 80km, SMF, Duplex SC, 0°C-70°C
Support full range of optical transceiver solutions
Optical Transceiver Range
Transceiver Product Matrix
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Why Choose Us
Advanced Equipment
Strict Testing
Expert Support
Global Delivery
Company Profile

We are a specialized manufacturer of magnetic telecom and network components, certified by ISO9001:2000, ROHS, REACH, CE and UL, with advanced manufacturing equipment and testing equipment imported from abroad. Our company was established in 1997, we have about 2000 employees at present. With the abundant production capacity of 3000K per month, we are able to deliver products within the short time.

In addition, we can provide a complete series of optical modules for fixed access, wireless access, carrier Ethernet, wavelength division multiplexing (WDM), and data communication networks. The range also includes high-speed optical interconnect solutions for cloud computing and ultra-broadband networks. Using the latest optoelectronic technologies, we design, manufacture and sell products worldwide.

Production Facility
Quality Inspection Center
Frequently Asked Questions
1. Are you a factory or a trading company?
We are a specialized manufacturer of magnetic telecom and networking components, such as RJ45 connectors, LAN transformers, RJ11 connectors, and SFP modules.
2. Can I get a sample before mass production?
Yes, we can offer you free samples to test quality, but the buyer is responsible for the shipping fee.
3. What is your delivery time?
We have ready-to-ship inventory for standard stock items. The lead time for mass production is typically 15-30 days.
4. What after-service can you offer?
We provide a one-year warranty period and online technical support available 24 hours a day.
5. Can you accept OEM/ODM orders?
Yes, please share your details and specific requirements with us so we can discuss the customizable options.
6. What is your advantage?
We have over 19 years of manufacturing and design experience, serving as a trusted partner to global industry leaders.
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