SOLID STATE LOGIC Alpha Link MADI AX IO Bundle [12/32] Clock source selection

Clock Source Selection

The Alpha-Link unit can operate either as a Clock Master device (‘Internal’

mode), or as a Clock Slave device locked to an external clock signal.

Possible external sources are:

• ADAT (Alpha-Link AX and MADI-AX)

• AES/EBU (Alpha-Link MADI-SX and LIVE)

• MADI (Alpha-Link MADI-AX, MADI-SX and LIVE)

• Video (Alpha-Link MADI-SX and LIVE,

with hardware modification

)

• Wordclock (all units)

Pressing the CLOCK button will step through each of the possible options, each illuminating the

corresponding LED. When the button is released, the entire Alpha-Link will lock to that source. Note

that a flashing clock LED indicates that although the corresponding mode has been selected, the

Alpha-Link is not receiving a valid Master Clock signal via the selected port/input.

If either ADAT or AES/EBU are selected as an external clock source, it may be necessary to preset which ADAT

port – or AES/EBU input (port A only) – is used to derive the clock signal from. In the same manner, the ‘External’

source – MADI or Wordclock – must also be preset. Please refer to the System Settings and Diagnostics section

of this guide for details of how to preset these clock sources.

When the Alpha-Link unit is used as part of a Mixpander setup, the CLOCK button will be disabled and the clock source

must be selected in the SSL Mixer software. Note however that the Mixpander card only operates as a Clock Slave

and therefore it is the Alpha-Link which provides a clock signal to the Mixpander card.

Alpha-Link LIVE units are preconfigured to receive an external clock extracted from the incoming MADI stream

AES/EBU (or ADAT)

Internal

External

(MADI, Video or Wordclock)