Realtime Rack Manual
Chapter 2: Hardware
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(6) Word Clock Termination Switch
This pushbutton switch provides internal 75-ohm word clock input signal termination
when required. Word clock termination is active when the switch is engaged (depressed).
Realtime Rack’s termination switch should only be engaged when Realtime Rack is set to
sync to external word clock and it is the last device at the receiving end of a word clock
cable. For example, if Realtime Rack is the last “slave” unit at the end of a clock chain
(when Realtime Rack’s word clock out port is not used), termination should be active.
(7) 1394b Ports
The 1394b ports are for development and manufacturing purposes only. The have no
functionality within the Realtime Rack system.
Important:
Do not attach any devices to the 1394b ports, and do not connect the
FireWire ports to a host computer.
(8 & 9) MADI I/O Ports
The MADI I/O ports are used for digital audio interconnections between the Realtime
Rack hardware unit and the Soundcraft Vi-series consoles. Dual Optical SC-Plug (ISO/
IEC 9314-3) connectors are provided.
(8) MADI OUT
Connect this port to the MADI optical input on the Soundcraft Vi console.
(9) MADI IN
Connect this port to the MADI optical output on the Soundcraft Vi console.
