Operation
Elite
TM
43
3.2.2
CEX
(Common
EXciter)
IN
/
OUT
For
synchronizing
two
RF
generators,
a
cable
can
be
connected
between
CEX
OUT
of
the
master
generator
to
CEX
IN
on
a
slave
generator.
Any
RF
generator
can
be
used
in
either
master
or
slave
mode.
When
operating
in
CEX
mode,
the
slave
generator’s
frequency
will
be
locked
to
the
master
generator.
RF
on/off
control
and
RF
setpoint
remain
independent
between
the
two
generators.
The
CEX
cable’s
electrical
length
can
chosen
to
provide
a
specific
phase
shift
between
the
two
RF
generator
outputs.
Note:
When
a
generator
is
placed
in
CEX
mode
and
RF
is
turned
on,
if
a
valid
CEX
signal
is
not
present
at
the
CEX
IN
connector,
the
generator
will
issue
an
Out
of
Regulation
warning.
Depending
on
the
RF
setpoint,
a
momentary
overshoot
of
RF
power
may
be
occur
if
a
CEX
signal
is
applied
after
RF
is
already
turned
on.
3.3
Pulsed
Operation
The
elite
TM
generator
is
capable
of
both
CW
and
pulsed
operation.
Different
interface
options
allow
for
different
pulse
control
methods.
For
instance,
when
utilizing
the
RS
‐
232
interface,
the
pulse
paramaters
and
activation
of
internal
pulse
mode
can
be
done
using
the
appropriate
OLC
commands
(see
section
3.1).
Internal
pulse
mode
can
also
be
controlled
via
the
front
panel
LCD
on
generators
so
equipped.
Pulsing
can
also
be
controlled
by
supplying
an
external
blanking
signal
to
pin
24
of
the
analog
interface
connector
on
the
rear
panel
of
the
generator.
With
this
pin
set
low
or
open,
the
RF
output
will
be
CW.
By
applying
a
logic
high
to
this
pin,
the
RF
output
will
be
inhibited.
Therefore,
by
applying
a
TTL
pulse
stream
to
this
pin,
the
RF
output
can
be
pulsed
at
a
rate
consistent
with
the
external
source.
