U
‐
Hub
USER
GUIDE
U
‐
Hub
User
Guide
V1.0
11
…………
Block
Diagram
This
diagram
shows
the
essential
features
of
the
U
‐
Hub,
highlighting
how
the
audio
feed
from
the
rear
panel
inputs
is
combined
onto
three
of
the
U
‐
Net
connections.
U
‐
Net
is
run
as
a
redundant
loop,
all
U
‐
Net
enabled
products
have
two
ports.
Port
1
on
the
U
‐
Hub
would
be
connected
to
port
1
on
the
first
device,
port
2
on
this
device
would
link
out
to
the
next
device
and
so
on
with
a
final
link
back
to
port
2
on
the
U
‐
Hub
to
complete
the
loop.
This
allows
the
system
to
continue
working
seamlessly
in
the
event
of
a
cable
being
damaged
or
inadvertently
disconnected.
Data
will
simply
flow
in
the
opposite
direction
to
allow
continuous
communication.
Audio
connections
are
combined
with
the
network
feeds.
Audio
input
1
is
connected
to
a
pair
of
spare
connections
in
the
U
‐
Net
port
1
ODU.
This
would
usually
be
used
as
the
“send”
to
the
first
array.
A
return
from
the
array
would
be
connected
to
the
first
link
in
connection.
Audio
2
is
combined
with
the
second
ODU
in
the
linked
pair
allowing
audio
to
be
fed
to
a
second
array,
a
side
hang
for
example.
The
network
return
from
this
array
comes
back
to
the
second
link
in.
Audio
3
is
connected
to
the
link
out
of
this
pair
and
can
be
used
to
route
out
to
a
third
array
such
as
the
sub
‐
woofer
stack.
Finally,
the
U
‐
Net
return
from
the
subs
is
connected
to
U
‐
Net
port
2
on
the
U
‐
Hub
to
complete
the
loop.
System
Example
This
diagram
illustrates
the
wiring
to
the
array
for
a
system
as
described
above
(note
that
mains
connections
have
been
omitted
for
clarity);
‐
