U
‐
Hub
USER
GUIDE
U
‐
Hub
User
Guide
V1.0
13
…………
Audio
Connections
Input
Connections
For
each
audio
input
there
is
a
female
XLR
connector
for
analogue
or
AES
signals.
The
HOT,
+
or
‘in
phase’
connection
should
be
made
to
pin
2
of
the
XLR
connector.
The
COLD,
‐
or
‘out
of
phase’
connection
should
be
made
to
pin
3
of
the
XLR
connector.
Pin
1
of
the
XLR
connectors
is
internally
connected
to
the
chassis.
The
shield
of
the
input
cable
should
always
be
connected
Pin
1
of
the
XLR
to
ensure
that
EMC
performance
and
regulations
are
met.
Using
unbalanced
connections
Please
note
that
the
use
of
unbalanced
connections
is
not
recommended,
however
when
connecting
the
U
‐
Hub
to
an
unbalanced
audio
source,
the
signal
conductor
should
be
connected
to
XLR
pin2.
The
‘Cold’
conductor
or
cable
screen
should
be
connected
to
XLR
pin
1
with
a
short
connection
made
between
pin
1
and
pin
3.
