TimeCode Address. The HH:MM:SS:FF bits of the SMPTE timecodetimecode word.
TCA Target Channel Adapter the IB component that connects an input/output device to other IB devices. TCAs only require support for capabilities appropriate to the particular input/output device. TCAs live inside of (on a backplane) or are attached to a device, such as a solid-state memory cache or device group, such as a tape library.