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Gigabit 1.25G Single Mode Dual Fiber SFP Optical Transceiver Module LC 60km 80km 100km 1550nm Duplex LC Fiber Module with DDM
The Gigabit 1.25G Single Mode Dual Fiber SFP Optical Transceiver Module is engineered for reliable long-distance optical communication over 9/125μm single-mode fiber. Operating at a 1550nm wavelength, this duplex LC SFP module is optimized for extended transmission distances of 60km, 80km, and 100km, making it an ideal solution for carrier networks, enterprise backbones, data centers, industrial Ethernet, and FTTH infrastructure.
Built in accordance with the SFP Multi-Source Agreement (MSA) and IEEE 802.3z Gigabit Ethernet standards, the module supports 1.25Gbps data transmission and features a Duplex LC optical interface. A high-performance 1550nm DFB laser combined with a highly sensitive APD receiver ensures excellent optical performance, low bit error rates, and exceptional link stability over long distances.
The integrated Digital Diagnostic Monitoring (DDM/DOM) function provides real-time monitoring of module temperature, supply voltage, laser bias current, transmit optical power, and receive optical power, allowing proactive network maintenance and improved reliability.
Its hot-pluggable design enables easy installation and replacement without network interruption. Compatible with most major networking brands, this module is suitable for switches, routers, media converters, industrial switches, OLTs, and optical transmission systems.
Product Features
- Supports 1.25Gbps Gigabit Ethernet
- Single Mode Dual Fiber transmission
- Duplex LC optical interface
- 1550nm DFB laser transmitter
- Available transmission distances:
- 60km
- 80km
- 100km
- High-sensitivity APD receiver for ultra-long-distance transmission
- Supports 9/125μm single-mode fiber
- Hot-pluggable SFP MSA compliant form factor
- Digital Diagnostic Monitoring (DDM/DOM) supported
- Low power consumption (≤1W)
- Excellent optical stability and low BER
- High EMI and ESD immunity
- Supports continuous 24/7 operation
- Commercial and Industrial temperature versions available
- RoHS compliant
- Broad compatibility with Cisco, Huawei, HPE, MikroTik, Ubiquiti, TP-Link, D-Link, Juniper, Netgear, industrial Ethernet switches, media converters, and other MSA-compliant equipment
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 | 1550nm |
| Transmission Distance | 60km / 80km / 100km |
| Laser Type | DFB Laser |
| Receiver Type | APD Photodiode |
| Optical Budget | 60km: ≥24dB 80km: ≥28dB 100km: ≥30dB |
| Interface | Hot-Pluggable SFP |
| Digital Diagnostics | DDM / DOM Supported |
| Protocol Standard | IEEE 802.3z Gigabit Ethernet |
| MSA Compliance | SFP Multi-Source Agreement (MSA) |
| Power Supply | 3.3V DC |
| Power Consumption | ≤1W |
| Receiver Sensitivity | ≤ -24dBm (60km) ≤ -28dBm (80km) ≤ -30dBm (100km) |
| Transmit Optical Power | 0 ~ +5dBm (60km) +2 ~ +7dBm (80km) +3 ~ +8dBm (100km) |
| Extinction Ratio | ≥9dB |
| Bit Error Rate (BER) | <1 × 10⁻¹² |
| Operating Temperature | 0°C to +70°C (Commercial Grade) |
| Industrial Temperature (Optional) | -40°C to +85°C |
| Storage Temperature | -40°C to +85°C |
| Relative Humidity | 5%–95% RH (Non-condensing) |
| EMC Compliance | FCC Class B, CE, RoHS |
| ESD Protection | IEC 61000-4-2 |
| Laser Safety | Class 1 Laser Product |
| MTBF | >100,000 Hours |
Optical Performance Comparison
| Model | Wavelength | Distance | TX Power | RX Sensitivity | Receiver |
|---|---|---|---|---|---|
| SFP-SM-60 | 1550nm | 60km | 0 ~ +5dBm | ≤ -24dBm | APD |
| SFP-SM-80 | 1550nm | 80km | +2 ~ +7dBm | ≤ -28dBm | APD |
| SFP-SM-100 | 1550nm | 100km | +3 ~ +8dBm | ≤ -30dBm | APD |
Gigabit SFP optical transceiver module
,Single Mode Dual Fiber SFP module
,SFP module with DDM support
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