TDT System 3 Installation Manual page 43

System 3 Installation Guide
Using the UZ2 Sync
Each USB module has its own clock which will drift relative to each other. The
Sync (see diagram below) allows users to synchronize several modules that are
mounted in different device chassis. The Sync line uses the clock from one USB
module, the master, to synchronize the clocks across all zBus device chassis.
Connect the Sync Out of the master clock to the Sync In of the slave with a
short patch cable.
To connect several device chassis, daisy-chain the connections between the
slave chassis. When the Sync lines are connected correctly the LED to the left of
the Sync connectors should be lit on each slave devices. The LED on the master
will remain unlit. The LED should only flash when the Sync lines are not
connected.
Sync LEDs
Flashing (on slave)
Master device not lit and slave
devices lit
No devices lit
Indicates ...
Connected incorrectly
Connected correctly
Not synced to any device
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