PreSonus FIREstation - Manual (Page 17)

11
of audio, at up to 24-bit 48k resolution, to be transferred
simultaneously in one direction.
3.10 S/PDIF
The S/PDIF I/O allows the FIREstation to transfer/receive audio from
other digital audio devices.
3.11 BNC
The BNC I/O is designed to allow the FIREstation to sync frame rates
with other digital devices. This sync prevents pops, clicks and
distortion.