A Gigabit Interface Converter (GBIC) is an early hot-pluggable transceiver module used in data networking. It slots into a switch or router port to provide a specific physical interface, usually for fiber optic connections like 1000BASE-SX or 1000BASE-LX. Because they are modular, network administrators can populate a single switch with different types of GBICs to match the cable runs required for a specific deployment.
Heard on the job
We need to swap out the GBIC on port twelve for a single-mode module to reach the other building.
Insider tip
Due to their bulky size, GBICs were eventually replaced by the much smaller SFP modules, which allow for higher port density on switches.
Also heard as
- Gigabit Interface Converter