Yamaha 03D Owner's Manual - Page 64

D Applications, Wordclock Connections & Termination

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03D Applications 59 Wordclock Connections & Termination For correct operation it is essential that the wordclock cabling be terminated correctly. The 03D has a wordclock termination ON/OFF (75Ω) 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 75Ω wordclock terminator switch settings. 1. Parallel Distribution Box WORDCLOCK OUT Distribution box 03D WORDCLOCK IN 75Ω Switch=ON 03D-A WORDCLOCK IN 75Ω Switch=ON 03D-B WORDCLOCK IN 75Ω Switch=ON Other Device-A WORDCLOCK IN 75Ω Switch=ON Other Device-B 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 75Ω Switch=OFF WORDCLOCK IN 75Ω Switch=OFF WORDCLOCK IN 75Ω Switch=OFF WORDCLOCK IN 75Ω Switch=ON 03D-A 03D-B Other Device-A Other Device-B 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 WORDCLOCK OUT IN OUT WORDCLOCK 75Ω Switch=ON 03D-A IN OUT WORDCLOCK 75Ω Switch=ON 03D-B 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. Yamaha 02R & 03D Applications Guide

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03D Applications
59
Yamaha 02R & 03D Applications Guide
03D
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
Ω
) 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
Ω
wordclock terminator switch
settings.
1. Parallel Distribution Box
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
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.
03D-A
75
Ω
Switch=
ON
03D-B
75
Ω
Switch=
ON
Other
Device-A
75
Ω
Switch=
ON
Other
Device-B
75
Ω
Switch=
ON
WORDCLOCK
OUT
WORDCLOCK IN
WORDCLOCK IN
WORDCLOCK IN
WORDCLOCK IN
Distribution box
03D-A
75
Ω
Switch=
OFF
03D-B
75
Ω
Switch=
OFF
Other
Device-A
75
Ω
Switch=
OFF
Other
Device-B
75
Ω
Switch=
ON
WORDCLOCK
OUT
WORDCLOCK IN
WORDCLOCK IN
WORDCLOCK IN
WORDCLOCK IN
03D-A
75
Ω
Switch=
ON
IN
OUT
03D-B
75
Ω
Switch=
ON
WORDCLOCK
OUT
WORDCLOCK
IN
OUT
WORDCLOCK