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Gigabit 1.25G Single Mode Dual Fiber SFP Optical Transceiver Module LC 1310nm Duplex LC Fiber Module
The Gigabit Single Mode Dual Fiber SFP Optical Transceiver Module is designed for high-speed 1.25Gbps Gigabit Ethernet transmission over 9/125μm single-mode fiber. Featuring a 1310nm wavelength and Duplex LC optical interface, it provides reliable, low-latency, and stable fiber connectivity for enterprise, industrial, and telecommunications networks.
Available in transmission distances of 2km, 5km, 10km, 20km, and 40km, this optical module complies with the SFP Multi-Source Agreement (MSA) and IEEE 802.3z Gigabit Ethernet standards. It utilizes a 1310nm DFB laser transmitter and a highly sensitive PIN photodiode receiver to ensure excellent signal quality, low bit error rate, and long-distance communication.
The module supports Digital Diagnostic Monitoring (DDM/DOM), enabling real-time monitoring of operating parameters including transmit power, receive power, temperature, voltage, and laser bias current. Its hot-swappable SFP form factor allows quick installation and replacement without interrupting network operation.
Designed for maximum interoperability, this module is compatible with most mainstream switches, routers, media converters, industrial Ethernet switches, OLTs, and networking equipment, making it an ideal solution for enterprise LANs, data centers, FTTH, telecom backbone networks, campus networks, security surveillance, and industrial automation.
Product Features
- Supports 1.25Gbps Gigabit Ethernet data transmission
- Single Mode Dual Fiber optical transmission
- Duplex LC optical connector
- Available transmission distances:
- 2km
- 5km
- 10km
- 20km
- 40km
- 1310nm DFB laser transmitter
- High-sensitivity PIN photodiode receiver
- Supports 9/125μm Single Mode Fiber
- Duplex fiber communication
- Hot-pluggable SFP MSA compliant design
- Supports Digital Diagnostic Monitoring (DDM/DOM)
- Low power consumption (≤1W)
- Excellent EMI and ESD protection
- Low BER and stable optical output
- Wide compatibility with major networking equipment brands
- Commercial and Industrial temperature versions available
- RoHS compliant
- Suitable for continuous 24/7 industrial operation
Technical Specifications
| Specification | Details |
| Product Type | Gigabit Duplex SFP Optical Transceiver |
| Data Rate | 1.25Gbps |
| Fiber Type | 9/125μm Single Mode Fiber |
| Fiber Configuration | Dual Fiber (Duplex) |
| Optical Connector | Duplex LC |
| Wavelength | 1310nm |
| Transmission Distance | 2km / 5km / 10km / 20km / 40km |
| Laser Type | DFB Laser |
| Receiver Type | PIN Photodiode |
| Optical Budget | 2km: ≥8dB5km: ≥10dB10km: ≥14dB20km: ≥18dB40km: ≥24dB |
| Interface | Hot-Pluggable SFP |
| Digital Diagnostics | DDM / DOM Supported |
| Protocol Standard | IEEE 802.3z Gigabit Ethernet |
| MSA Compliance | SFP Multi-Source Agreement |
| Power Supply | 3.3V |
| Power Consumption | ≤1W |
| Receiver Sensitivity | ≤ -22dBm (Typical) |
| BER | <1×10⁻¹² |
| Operating Temperature | 0°C to +70°C (Commercial) |
| Industrial Temperature (Optional) | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5%–95% RH (Non-condensing) |
| Compliance | FCC, CE, RoHS |
| MTBF | >100,000 Hours |
Gigabit SFP optical transceiver module
,1.25G single mode SFP module
,Dual fiber LC SFP module
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