Apogee BIG BEN User Manual page 22

BIG BEN – User's Guide
Connecting Clock Signals
From the preceding information , these four Rules of Clock can be established:
1) Ensure that all A-to-D and D-to-A converters are clocked by the most precise source possible, to
ensure the highest quality for the entire digital audio system.
2) Each digital device should be connected directly to the Master Clock Source with the shortest
possible cable, in a "star" configuration.
3) Each Word Clock line should be terminated with a 75 ohm load, as indicated by Big Ben's Termination
sensing LEDs. When the word clock input of connected devices is un-terminated, it's acceptable to
chain a few devices with a BNC "T" connector on the word clock input.
4) Don't delay the clock signal to any device by chaining a signal through input/output clock circuitry.
Every device should receive the digital "downbeat" simultaneously.
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APOGEE ELECTRONICS