The RB-DSD1 digital silence detection unit
works in a similar way to the Sonifex RB-SD1
analogue silence detection unit, but has
AES/EBU, S/PDIF and TOSlink inputs and
outputs instead of analogue inputs and
output respectively. Designed to switch
from one input to another in the event of
loss of audio, the unit is ideal at transmitter
sites, or after the master output of a studio,
to switch in another audio source, or
simultaneous broadcast, should a master
source fail.
The unit can switch:

• On loss of level of the main input.
• On loss of level on one channel of the
  main input.
• On loss of synchronisation lock of the
  main input.