1.25G dual fiber duplex single mode 1310nm 20KM LC connector SFP module
- Model Number:OFSS-1312-20
- Type:Fiber opitc adapter
- Place of Origin:Guangdong, China
- Brand Name:OPTFOCUS
- Use:Network, FTTH
- Warranty Time:2 years
- Network:NETWORK
- Product name:SFP Module
- Application:Gigabit Ethernet
- Standard operating temperature:0 to +70°C
- Data-rate:1.25Gbps
- Wavelength:1310nm
- Distance:20 KM
- Keywords:duplex 1310nm SFP module
- Certification:ce
1.25G dual fiber single mode 1310nm 20KM LC connector SFP module

- Dual data-rate of 1.25Gbps/1.063Gbps operation
- 1310nm FP laser and PIN photodetector for 20km transmission
- Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
- Digital Diagnostic Monitoring: Internal Calibration or External Calibration
- Compatible with SONET OC-24-LR-1
- Compatible with RoHS
- +3.3V single power supply
- Operating case temperature:
- Standard : 0 to +70°C
- Extended : -20 to +85°C
- Industrial : -40 to +85°C
- Gigabit Ethernet
- Fiber Channel
- Switch to Switch interface
- Switched backplane applications
- Router/Server interface
- Other optical transmission systems
Description
The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps/1.0625Gbps and 20km transmission distance with SMF.
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement (MSA) and SFF-8472. For further information, please refer to SFP MSA.

Table 3 - Optical and Electrical Characteristics
Parameter | Symbol | Min | Typical | Max | Unit | Notes | ||
Transmitter | ||||||||
Centre Wavelength | λc | 1260 | 1310 | 1360 | nm |
| ||
Spectral Width (RMS) | λ |
|
| 4 | nm |
| ||
Average Output Power | Pout | -9 |
| -3 | dBm | 1 | ||
Extinction Ratio | ER | 9 |
|
| dB |
| ||
Optical Rise/Fall Time (20%~80%) | tr/tf |
|
| 0.26 | ns |
| ||
Data Input Swing Differential | VIN | 400 |
| 1800 | mV | 2 | ||
TX Disable | Disable |
| 2.0 |
| Vcc | V |
| |
Enable |
| 0 |
| 0.8 | V |
| ||
TX Fault | Fault |
| 2.0 |
| Vcc | V |
| |
Normal |
| 0 |
| 0.8 | V |
| ||

Shenzhen Optfocus Technology Co.,Ltd was established in 2009, which is a High -tech enterprise, professional R & D, production and sales of Fiber to the Home (FTTH), Fiber to the Building (FTTB) & FTTx, Fiber access network equipment and terminal equipment & cabling system products. It is committed to provide Customized OEM & ODM services to Global communication distributors, Telecom Operators and System Integrators.

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