UAD‑2 Live Rack Manual
Chapter 2: Hardware
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(5) Word Clock In
UAD‑2 Live Rack’s internal clock can be synchronized (slaved) to an external master
word clock. This is accomplished by setting UAD‑2 Live Rack’s clock source to Word
Clock in the Hardware tab within the UAD‑2 Live Rack software’s Settings view,
connecting the external word clock’s BNC connector to UAD‑2 Live Rack’s word clock
input, and setting the external device to transmit word clock. If UAD‑2 Live Rack is the
last device in the clock chain, the Termination switch (6) should be engaged.
Note: UAD-2 Live Rack can be synchronized to an external “1x” clock signal only.
Superclock, overclocking, and subclocking are not supported.
(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).
UAD‑2 Live Rack’s termination switch should only be engaged when UAD‑2 Live 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 UAD‑2 Live Rack is the last “slave” unit at the end
of a clock chain (when UAD‑2 Live Rack’s word clock out port is not used), termination
should be active.
(7) 1394b Ports (no function)
The 1394b ports are for manufacturing purposes only. They have no functionality within
the UAD‑2 Live Rack system.
Important:
Do not attach any devices, including a computer, to the 1394b ports.
(8 & 9) MADI I/O Ports
The MADI I/O ports are used for the digital audio interconnections between the UAD‑2
Live Rack hardware unit and other MADI equipment. Dual Optical SC‑Plug (ISO/IEC
9314‑3) connectors are provided.
(8) MADI OUT
Connect this port to the MADI optical input on the MADI device.
(9) MADI IN
Connect this port to the MADI optical output on the MADI device.
