SFP 1G Bidi (Small Form-factor Pluggable 1 Gigabit Bidirectional) refers to a specific type of optical transceiver module used in networking equipment. The term “Bidi” stands for “bidirectional,” indicating that the module is designed to transmit and receive data over a single optical fiber using two different wavelengths. Here are some key features and characteristics of SFP 1G Bidi modules: