📌 Key Features
Form Factor: SFP hot-pluggable module — easy to install and replace without powering down the switch or device.
Standards: Compliant with IEEE 802.3z Gigabit Ethernet and SFP MSA industry standards.
BiDi Operation:
Transmit (TX) wavelength: 1550 nm
Receive (RX) wavelength: 1310 nm
Both signals run over a single fiber strand using a simplex LC connector, reducing fiber count.
Data Rate: Supports up to 1.25 Gbps / 1000BASE-LH Ethernet.
Reach: Up to 40 km over single-mode fiber (SMF).
Digital Optical Monitoring (DOM/DDM): Provides real-time diagnostics for parameters like optical power, temperature, and voltage.
Power Consumption: ≤ ~1.5 W — low power draw.
Safety & Compliance: Meets Class 1 Laser safety and RoHS environmental standards.
🔌 How It Works
Instead of using two fibers (one for transmit, one for receive), BiDi modules like this use a single fiber with two different wavelengths — here, 1550 nm for sending and 1310 nm for receiving. To form a full link, you typically pair it with a complementary BiDi module (e.g., GE-SFP-LH40-SM1310-BIDI) at the other end.
📍 Typical Uses
✔ Gigabit Ethernet fiber links between switches, routers, or media converters
✔ Long-distance campus or data center uplinks
✔ Fiber deployments where minimizing fiber usage is important
