10
Overload
Protection
Each
channel
is
protected
against
short
‐
circuit
and
thermal
overload.
If
the
thermal
overload
on
any
channel
engages,
the
front
panel
indicator
for
that
channel
will
illuminate.
In
addition,
an
overload
on
any
channel
will
cause
the
overload
signal
(pin
37)
on
the
input
connector
to
go
high
(+5V).
The
amplifier
can
also
be
disabled
by
applying
a
logic
high
(3.3V
to
5V)
to
the
disable
pin
(pin
36).
11
Enclosure
The
PD32
has
a
side
air
intake
and
rear
exhaust.
These
vents
should
not
be
obstructed.
If
sufficient
air
‐
flow
is
not
available,
the
amplifier
will
enter
a
thermal
overload
state
as
discussed
above.
The
PD32
amplifier
can
be
rack
‐
mounted
in
a
single
or
side
‐
by
‐
side
arrangement.
The
DAC
card
adaptor
can
also
be
rack
mounted
in
a
single
or
side
‐
by
‐
side
arrangement
with
another
adaptor
or
the
amplifier
itself.
A
single
amplifier
or
adaptor
can
be
mounted
with
the
PD32
‐
Rack1
kit.
Two
adaptors,
amplifiers,
or
a
combination
of
both
can
be
mounted
side
‐
by
‐
side
with
the
PD32
‐
Rack2
kit.
12
Signal
Adaptors
The
signal
adaptors
allow
a
direct
connection
to
common
multi
‐
channel
DAC
cards.
Standard
adaptors
are
listed
below;
however,
custom
adaptors
can
also
be
created.
Manufacturer
DAC
Card
Signal
Adaptor
Notes
National
Instruments
PCI
‐
6723
PD
‐
6723
Requires
NI
SH68
‐
C68
‐
S
Cable
National
Instruments
PXI
‐
6723
PD
‐
6723
Requires
NI
SH68
‐
C68
‐
S
Cable
The
adaptors
are
contained
in
a
compact
desktop
enclosure
which
can
be
mounted
in
a
side
‐
by
‐
side
arrangement
to
another
adaptor
or
an
amplifier.
A
single
amplifier
or
adaptor
can
be
mounted
with
the
PD32
‐
Rack1
kit.
Two
adaptors,
amplifiers,
or
a
combination
of
both
can
be
mounted
side
‐
by
‐
side
with
the
PD32
‐
Rack2
kit.
13
Waranty
The PDC32 is guaranteed against manufacturer defects for a period of 12 months.
