TDT RZ2, Manual, Page: 702 / 736

19-12 System 3
UZ2 USB 2.0 Interface
patch cable. To connect several device chassis, daisy-chain the connections between
the slave chassis as shown below. 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.
Logical Order of Devices
The logical order of devices is determined each time the zBus chassis are powered
on. You can verify the current logical order using the zBUSmon software.
Boot Up Sequence
The boot up sequence for the USB 2.0 interface is driven from the PC and follows
the communication protocol described below.
The first time the hardware is turned on a device driver is loaded to the interface.
Depending on your operating system, the PC might beep to indicate that the device
driver has been loaded.
A second set of drivers will be loaded and the devices will reboot.
The TDT hardware is queried to determine the logical order of the devices and zBus
chassis.
Important! If the zBus is accessed during step three, the devices will fail to ID. To ensure that
step three is completed, wait ten seconds after the devices have rebooted (step
two) before loading any TDT application or viewing the devices in zBUSmon. If the
hardware fails to ID shut down the TDT hardware and restart the device.
Sync LEDs Indicates
Flashing (on slave) Connected incorrectly
Master device not lit and slave devices lit Connected correctly
No devices lit Not synced to any device