Operation Manual
Resilience to failure (redundancy) 43
DL431 Mic Splitter
Operator Manual
Control and 
audio data
Audio data
Control data
Router
Monitor
FOH
XL8 Control Centre
Internal bay 
processor
Dual redundant 
internal router
Dual redundant 
internal master 
controller
Local I/O units
Mic 
splitters 
(shared)
This diagram gives a 
more detailed 
illustration of the 
interconnections in a 
standard FOH and 
stage monitor set up.
N + 1 redundant 
spare
N + 1 redundant 
spare DSP unit
DSP 
units
Figure 4: System interconnections
Cat6/optical 
‘snake’
I/O units
Clock sync
XY










