Installation
and
Basic
Operation
AUDIO
OUTPUT:
This
can
drive
headphones
or
a
powered
speaker,
like
the
front
panel
Audio
Output.
SYNC
OUTPUT:
The
signal
available
at
this
BNC
connector
is
intended
to
be
used
as
an
external
trigger
for
an
oscilloscope
when
internal
commands
(Seal
Test,
Tuning,
or
Pulse)
are
activated,
or
to
indicate
the
Mode
state
of
the
amplifier
(commanded
either
externally
by
the
MODE
BNC
or
internally
by
the
Auto
Mode
switch
feature).
The
Sync
Output
sends
out
a
0
to
(approximately)
5
V
step
aligned
with
the
onset
of
the
Seal
Test,
Tuning,
or
Pulse
step.
Or,
when
following
automated
Mode
switching,
2–5
V
(HIGH)
corresponds
to
V
‐
Clamp
while
0–0.8
V
(LOW)
corresponds
to
I
‐
Clamp.
See
the
Options
/
General
tab
to
select
the
function
of
the
SYNC
OUTPUT.
CONTROL
USB:
Connects
to
a
USB
port
of
the
host
computer
to
control
the
Axoclamp
900A.
SCOPE
USB:
Connects
to
a
USB
2.0
port
of
the
host
computer
to
provide
Scope
window
data.
This
is
a
self
‐
contained
single
‐
channel
5
MHz
acquisition
system
that
allows
the
user
to
see
critical
switched
membrane
voltage
signals
during
the
switching
period.
It
helps
in
the
setup
of
neutralization
and
gain
in
discontinuous
modes
(DCC
and
dSEVC).
Overview
The
purpose
of
this
section
is
to
describe
the
basic
controls
of
the
Axoclamp
900A
Commander.
The
following
chapter
Setup
and
Tutorials
guides
you
step
‐
by
‐
step
through
the
various
recording
configurations.
Axoclamp
900A
Commander
is
the
control
platform
for
all
Axoclamp
900A
functions,
from
basic
parameter
settings
to
various
“smart”
automated
features.
Not
being
bound
by
the
physical
space
restrictions
imposed
by
amplifier
panels,
software
control
allows
a
greater
range
of
control
features
to
be
offered.
Software
control
also
allows
seamless
integration
with
data
acquisition
programs,
such
as
Molecular
Devices’
pCLAMP
10.
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