RME Audio Hammerfall HDSPe RayDAT, User Manual

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User's Guide HDSPe RayDAT
© RME
The word clock input of the optional WCM9632 can be high-impedance or terminated, ensuring
maximum flexibility. If termination is necessary (e.g. because HDSPe RayDAT is the last device
in the chain), push the switch into
terminate position.
In case the HDSPe RayDAT resides within a chain of devices receiving word clock, plug a T-
adapter into its BNC input jack, and the cable supplying the word clock signal to one end of the
adapter. Connect the free end to the next device in the chain via a further BNC cable. Bring the
termination switch to the high-impedance position. The last device in the chain should be termi-
nated using another T-adapter and a 75 Ohm resistor (available as short BNC plug). Of course
devices with internal termination do not need T-adaptor and terminator plug.
23.3 Operation
The HDSPe RayDAT's word clock input is active when Pref. Sync Ref in the Settings dialog has
been set to Word/TCO , the clock mode AutoSync has been activated, and a valid word clock
signal is present. The signal at the BNC input can be Single or Double Speed, the HDSPe Ray-
DAT automatically adapts to it. As soon as there is a valid signal at the BNC jack the green
Lock LED lights up, and the Settings dialog shows
Lock or Sync ..
The
Input Status displays the frequency of the input signal, measured by the hardware.
The word clock output of the WCM9632 is constantly active, providing the current sample fre-
quency as word clock signal. As a result, in Master mode the provided word clock is defined by
the currently used software. In Slave mode, the provided frequency is identical to the one pre-
sent at the currently chosen clock input. When the current clock signal fails, the RayDAT
switches to Master mode and adjusts itself to the next, best matching frequency (44.1 kHz, 48
kHz etc.).