Notes For Virtual Switches, Page One - Solid State Logic XLogic Alpha-Link LIVE-R User Manual

Notes for Virtual Switches, Page One

1. There are two MADI channel formats; 56 or 64 channel. The 56 channel format allows for
the nominal sample rate whilst the 64 channel format uses the full capacity of the MADI stream fixed to the
selected sample rate. Not all MADI interfaces support both formats; please refer to the documentation for the
connected interface to determine the correct format to use. Note that the MADI link transmission rate is always
fixed hence at higher or '2Fs' sample rates the channel capacity is halved to either 28 or 32 channels and at '4Fs'
sample rates the channel capacity is halved again to 14 or 16 channels.
For Alpha-Link LIVE-R to control 8-RMP units, it is essential that the MADI port be set to operate in 56 channel
mode; control signals are transmitted as data packets over channel 57.
2. These options are used at 2Fs and 4Fs sample rates either to determine the rate of the master clock or to set
the data format for that interface.
a. If the unit is set to lock to the interface in question, these options determine how the clock signal embedded
in the selected clock source is interpreted when the clock is below 57kHz (Fs rate) :
• When the source sample rate is Fs, the '2Fs / Legacy (SMUX2)' setting is invalid; 'Fs / High Speed' must
be selected to receive valid data. The distributed clock will be Fs.
• When the source sample rate is 2Fs – with 'Legacy (SMUX2)' format data – the 'Fs / High Speed' setting
is invalid; '2Fs / Legacy (SMUX)' must be selected to receive valid data. The distributed clock will be Fs.
• When the source sample rate is 4Fs – with 'Legacy (SMUX4)' format data – the 'Fs / High Speed' setting
is invalid; '4Fs / Legacy (SMUX)' must be selected to receive valid data. The distributed clock will be Fs.
When Alpha-Link LIVE-R is provided with a 2Fs rate clock (above 57kHz) the setting of this switch will be
ignored and the distributed clock will always be 2Fs rate.
16
10% deviation from