Wordclock Connections & Termination - Yamaha 03D Application Manual

Wordclock Connections & Termination
For correct operation it is essential that the wordclock cabling be terminated correctly. The
03D has a wordclock termination ON/OFF (75 ) switch on the rear panel. Wordclock is a
TTL signal, and IN and OUT connections use BNC connectors. Three wordclock
distribution examples are shown below. Note the 75 wordclock terminator switch
settings.
1. Parallel Distribution Box
WORDCLOCK IN
75 Switch=ON
03D-A
In this example, a parallel distribution box is used to distribute the wordclock signal among
devices. All wordclock terminator switches are set to ON.
2. Using BNC T-bar Connectors
WORDCLOCK
OUT
WORDCLOCK IN
75 Switch=OFF
03D-A
This example is similar to the above except that T-bar connectors are used. In this system,
only the last device's wordclock terminator switch is set to ON.
3. Daisy Chain Distribution
In this example, the wordclock master is a digital multitrack recorder. Both 03D wordclock
terminator switches are set to ON. This method of wordclock distribution is not
recommended for large systems.
WORDCLOCK
Distribution box
OUT
WORDCLOCK IN WORDCLOCK IN
75 Switch=ON 75 Switch=ON
Other
03D-B Device-A
WORDCLOCK IN WORDCLOCK IN
75 Switch=OFF 75 Switch=OFF
Other
03D-B
Device-A
WORDCLOCK
OUT
IN OUT IN
WORDCLOCK WORDCLOCK
75 Switch=ON 75 Switch=ON
03D-A 03D-B
03D Applications 59
WORDCLOCK IN
75 Switch=ON
Other
Device-B
WORDCLOCK IN
75 Switch=ON
Other
Device-B
OUT
Yamaha 02R & 03D Applications Guide