The
Instrument
at
a
Glance
The
HP
83481A
Optical/Electrical
Plug-In
Module
If
you
wish
to
use
the
HP
83481A
optical
plug-in
module
in
an
HP
54750A
digitizing
oscilloscope
,
a
rmware
upgrade
must
rst
be
installed.
Order
the
HP
83480K
communications
rmware
kit
and
follow
the
installation
instructions
.
The
plug-in
module
can
be
installed
in
slots
1
and
2
or
3
and
4
on
the
HP
83480A,
54750A
mainframe
.
The
plug-in
module
will
not
function
if
it
is
installed
in
slots
2
and
3.
T
o
make
sure
the
analyzer
meets
all
of
the
published
specications
,
there
must
be
a
good
ground
connection
from
the
plug-in
module
to
the
mainframe
.
The
RF
connectors
on
the
rear
of
the
plug-in
module
are
spring
loaded,
so
nger-tighten
the
knurled
screw
on
the
front
panel
of
the
plug-in
module
to
make
sure
the
plug-in
is
securely
seated
in
the
mainframe
.
C
A
U
T
I
O
N
Do
not
use
extender
cables
to
operate
the
plug-in
module
outside
of
the
mainframe
.
The
plug-in
module
using
extender
cables
can
be
damaged
by
improper
grounding
when
using
extender
cables
.
Trigger
The
external
trigger
level
range
for
this
plug-in
module
is
61
V
.
The
trigger
source
selection
follows
the
slots
the
plug-in
module
is
installed
in.
F
or
example
,
if
the
plug-in
module
is
installed
in
slots
1
and
2,
then
the
trigger
source
is
listed
as
trigger
2.
If
it
is
installed
in
slots
3
and
4,
then
the
trigger
source
is
listed
as
trigger
4.
C
A
U
T
I
O
N
The
maximum
safe
input
voltage
is
62
V
+
peak
ac
(+16
dBm).
1-12
Summary of Contents for 83481A
Page 1: ...User s Guide HP 83481A Optical Electrical Plug In Module ...
Page 12: ...Contents ...
Page 13: ...1 The Instrument at a Glance ...
Page 36: ...TheInstrumentata Glance ...
Page 37: ...2 Channel Setup Menu ...
Page 39: ...ChannelSetupMenu Figure 2 1 OpticalChannelSetup menu 2 3 ...
Page 40: ...ChannelSetupMenu Figure2 2 ElectricalChannel Setupmenu 2 4 ...
Page 52: ...ChannelSetupMenu ...
Page 53: ...3 Calibration Overview ...
Page 71: ...Calibration Overview UserCalibrations OpticalandElectrical Figure3 6 ExternalScale Menu 3 19 ...
Page 74: ...CalibrationOverview ...
Page 75: ...4 Speci cations and Characteristics ...
Page 84: ...Declaration of Conformity 4 10 ...
Page 85: ...5 In Case of Di culty ...
Page 92: ...InCaseofDi culty ...
Page 93: ...Index ...