User Manual

Step 7 Making the System Redundant
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Step 7 Making the System Redundant
Cable redundancy can be added to the system by using EtherSound’s Fault Tolerant Ring Mode.
However, when using this mode, there are certain restrictions to observe.
Patching Restrictions
A special patching scheme which ensures patches continue to work after cable failures must be used.
Specifically:
 End Loop parameters for all devices must be set to “ON”
 Audio must be transmitted on downstream channels only.
 Audio must be received on upstream channels only.
 Overwriting of channels is not permitted.
This patching scheme effectively limits the total number of EtherSound network channels to 64.
Wordclock Restrictions
 All devices must be configured to receive wordclock from the EtherSound network.
Devices connecting to the EtherSound network via MY cards must synchronize to the card
slot containing the EtherSound card. An external or “House” clock cannot be used.
 Sample rate can only be multiples of 48kHz. (48 kHz or 96kHz)
 Emergency clock must be “ON” for all devices.
Other Restrictions
The Preferred Primary Master device must be ES100 compatible. ES100 compatible devices bear the
logo below.