This 1.25G SFP BIDI transceiver operates over single-mode fiber using 1550nm / 1310nm wavelengths in a bi-directional (single-fiber) configuration, supporting 3km / 20km / 40km reach options for Gigabit Ethernet, switch-to-switch, router/server, and backplane applications. It is compliant with SFP MSA and SFF-8472 standards, featuring hot-pluggable design, digital diagnostic monitoring (DDM), Single LC connector, and a metal enclosure for lower EMI. Single +3.3V power supply, RoHS compliant. Available in Commercial (0~70°C) and Industrial (-40~85°C) temperature versions.

Optical Specifications:

• Wavelength: 1550nm / 1310nm (BIDI pair — TX 1550nm / RX 1310nm)

• TX: 3km / 20km: FP; 40km: DFB

• RX: PIN

• TX Power: 3km: -11~-3dBm; 20km: -9~-3dBm; 40km: -5~0dBm

• RX Sensitivity: 3km: < -20dBm; 20km: < -23dBm; 40km: < -24dBm

Compatible with Cisco, Huawei, ZTE, Mikrotik and other mainstream brands.

Customization Welcome: We accept customer customization — including wavelength pairing (1550/1310), reach option, temperature grade, compatibility coding, labeling, and packaging — to meet your specific deployment and branding requirements. Contact us for custom orders.

BIDI Pairing Note: BIDI modules must be used in matched pairs — this unit (TX 1550nm / RX 1310nm) pairs with the opposite unit (TX 1310nm / RX 1550nm). Please confirm the wavelength direction required for each end of your link when ordering.