Dorelink Dorelink

Single Mode 1.25G 1310nm Dual SC 20km SMF 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.

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

Optical Transceiver Module
Single Mode 1.25G 1310nm Dual SC 20km SMF 1x9 Optical Transceiver Module
Part No.L9-SD311G-20CTC
Form Factor1x9
Max Data Rate1.25Gbps
Wavelength1310nm
Max Cable Distance20km
ConnectorDuplex SC
MediaSMF
Transmitter TypeFP
Receiver TypePIN
TX Power-10 ~ -3dBm
Receiver Sensitivity< -23dBm
ProtocolsMulti-sourced 1×9 protocol
Temperature Range0 to 70°C
Warranty5 Years
SampleAvailable
1x9 Transceiver Ordering Information
Model Number Description
L9-SD312M-02TTC51x9 2Mbps, 1310nm(FP), 2km, MMF, Duplex SC, 0℃-70℃
L9-SD312M-02TTI51x9 2Mbps, 1310nm(FP), 2km, MMF, Duplex SC, -40℃-85℃
L9-SD312M-20TTC51x9 2Mbps, 1310nm(FP), 20km, SMF, Duplex SC, 0℃-70℃
L9-SD312M-20TTI51x9 2Mbps, 1310nm(FP), 20km, SMF, Duplex SC, -40℃-85℃
L9-SD312M-40TTC51x9 2Mbps, 1310nm(FP), 40km, SMF, Duplex SC, 0℃-70℃
L9-SD312M-40TTI51x9 2Mbps, 1310nm(FP), 40km, SMF, Duplex SC, -40℃-85℃
L9-SD851G-S5CTC1x9 1.25Gbps, 850nm(Vcsel), 500m, MMF, Duplex SC, 0℃-70℃
L9-SD311G-S5CTC1x9 1.25Gbps, 1310nm(FP), 550m, MMF, Duplex SC, 0℃-70℃
L9-SD311G-10CTC1x9 1.25Gbps, 1310nm(FP), 10km, SMF, Duplex SC, 0℃-70℃
L9-SD311G-20CTC1x9 1.25Gbps, 1310nm(FP), 20km, SMF, Duplex SC, 0℃-70℃
L9-SD311G-40CTC1x9 1.25Gbps, 1310nm(DFB), 40km, SMF, Duplex SC, 0℃-70℃
L9-SD551G-20CTC1x9 1.25Gbps, 1550nm(DFB), 20km, SMF, Duplex SC, 0℃-70℃
L9-SD551G-40CTC1x9 1.25Gbps, 1550nm(DFB), 40km, SMF, Duplex SC, 0℃-70℃
L9-SD551G-80CTC1x9 1.25Gbps, 1550nm(DFB), 80km, SMF, Duplex SC, 0℃-70℃
Support Full Range of Optical Transceiver Solutions
Solutions Range
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Capabilities & Production

We are a specialized manufacturer of magnetic telecom and network components, certified by ISO9001:2000, ROSH, REACH, CE and UL. Our facility is equipped with advanced manufacturing and testing equipment.

With abundant production capacity of 3000K per month, we provide a complete series of optical modules for fixed access, wireless access, carrier Ethernet, and data communication networks. Our solutions include high-speed interconnects for cloud computing and ultra-broadband networks.

Factory View 1
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Frequently Asked Questions
Are you a factory or trading company?
We are a specialized manufacturer of magnetic telecom and networking components, including RJ45 connectors, LAN transformers, and SFP modules.
Can I get a sample before mass production?
Yes, we can offer free samples to test quality, with shipping fees covered by the customer.
What is your delivery time?
Stock items are ready to ship immediately; mass production typically takes 15-30 days.
What after-sales service do you provide?
We provide a one-year guarantee period and 24-hour online technical support.
Can you accept OEM/ODM orders?
Yes, we welcome OEM and ODM inquiries for detailed discussion.
What is your core advantage?
With 19 years of production experience, we are a trusted partner for global industry leaders.
Quality Certification

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