D-TECH SFP 1.25G BIDI Tx1490/Rx1550nm DDM
Variant Specifications
80km LC
SFP 1.25G BiDi 1550Tx/1490Rx LC Optical Transceiver
The SFP 1.25G BiDi 80KM optical transceiver is a high-performance and cost-effective solution designed for long-distance fiber communication over a single fiber strand. Using bidirectional (BiDi) technology, it transmits at 1550nm and receives at 1490nm, enabling efficient network deployment with reduced fiber usage.
General Description
This SFP module complies with the SFP Multi-Source Agreement (MSA) and integrates key components such as LD driver, limiting amplifier, DFB laser, PIN photodetector, and Digital Diagnostic Monitoring (DDM). It supports up to 80KM transmission over 9/125µm single-mode fiber and provides Tx Fault, LOS (Loss of Signal), and I2C monitoring for reliable performance and diagnostics.
Technical Specifications
| Parameter | Specification |
|---|---|
| Data Rate | 1.25 Gbps |
| Transmission Type | BiDi (Single Fiber) |
| Wavelength | Tx: 1550 nm / Rx: 1490 nm |
| Transmission Distance | Up to 80 km |
| Fiber Type | Single Mode Fiber (9/125µm) |
| Connector | Simplex LC/UPC |
| Laser Type | DFB Laser |
| Receiver Type | PIN Photodiode |
| Power Supply | Single +3.3V |
| DDM / DOM | Supported |
Key Features
| Up to 1.25Gbps data rate |
| BiDi transmission over single fiber |
| Hot-pluggable SFP form factor |
| Low power consumption |
| Metal enclosure for low EMI |
| RoHS compliant and lead-free |
| Digital diagnostic monitoring (DDM) |
Applications
| Gigabit Ethernet |
| Switch-to-Switch Interconnection |
| Router / Server Interface |
| FTTH & ISP Networks |
| Other Optical Transmission Systems |
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