Creative 1212M House Sync Generator Digital Device, Digital Mixer, Adat Optical, MU 1010 Card

7 - Appendix Word Clock In/Out

House Sync

Generator

Digital

Device 1

Digital

Device 2

Digital

Device 3

Digital

Device 4

A master word clock generator is preferable for larger digital setups.

Word Clock In: Receives word clock (sample clock) from another digital device such as a digital video deck, digital recorder or digital mixer.

Word Clock Out: Sends word clock (sample clock) to another digital recorder. Word clock is always output, whether it is generated by the internal clock or passed through from the word clock input.

75Ω On/Off: Termination for the word clock input can be switched on or off in the Sync Card menu of the PatchMix DSP application. Normally word clock termination should be left on. If you have problems with a weak word clock signal, try turning termi- nation off. See Word Clock Termination.

The diagram below shows the proper way to connect and terminate a serial word clock chain. Using a BNC “T” connector ensures that word clock is precisely in phase for both devices. The middle device has termination turned Off and the last device in the word clock chain has termination turned On.

Digital Mixer

Word Clock

ADAT Optical or AES Digital

ADAT Optical	T - connector
	IN

Word Clock Termination OFF

Word

	AES
E-MU 1010 CARD	ADOCK

IN

SYNC CARD

Word Clock Termination ON

Clock

This diagram shows the proper way to connect word clock if you don’t have a multi-output word clock generator. The last device in a Word Clock chain should have Termination ON.

E-MU Digital Audio System 99