User's
Guide
HP
83485A/B
Optical/Electrical
Plug-In Module
HP
part
number:
Printed
Notice
without
to
this
in
US
.
The
information
notice
material,
A
merchantability
not
be
liable
for
damages
in
connection
material.
83485-90056
June
.
Hewlett-P
including
and
errors
1999
contained
ackard
tness
contained
with
but
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the
in
makes
not
limited
a
particular
herein
furnishing,
this
no
or
document
to
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,
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performance
is
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Hewlett-P
or
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ackard
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Restricted
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Government
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Rights
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other
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Legend.
is
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in
T
echnical
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Computer
.
Use
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Data
agencies
Software
,
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as
and
Computer
,
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subparagraphs
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Software
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by
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F
the
at
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AR
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DF
(2)
.S
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(1)
ARS
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c
Copyright Hewlett-Packard Company 1999
All Rights Reserved. Reproduction, adaptation, or translation without prior
written permission is prohibited, except as allowed under the copyright laws
.
Safety
The
following safety
yourself
Symbols
with each
symbols are
of the
symbols
used
and
throughout
its
meaning
this
before
manual.
operating
F
amiliarize
this
instrument.
The
C
AU
TI
ON
caution
procedure
damage
sign
until the
The
W
A
R
N
I
N
G
warning
procedure
in
injury
indicated
sign
which, if
to or
destruction
indicated
sign
which, if
or
loss
conditions
denotes a
not correctly
conditions
denotes
not correctly
of
life
.
are
hazard to
performed or
of
the
instrument.
a
life-threatening
Do
not
proceed
fully
understood
the
instrument.
Do
are
fully
understood
performed or
beyond
and
adhered
not
proceed
hazard.
adhered
a
warning
met.
It
It
calls
to
and
,
could
met.
calls
to
attention
result
beyond
attention
,
could
sign
until
to
in
a
caution
result
the
to
a
a
Instruction
Manual
L
The
instruction
for
the
user to
manual
refer
to
symbol.
the
The
instructions
product
in
the
is
marked
manual.
with
this symbol
when
it
is
necessary
iii
General
Safety Considerations
W
A
R
N
I
N
G
Before
grounded
socket
Any
outside
can
W
A
R
N
I
N
G
There
personal
Any
instrument
trained
W
A
R
N
I
N
G
If
equipment
condition
C
A
U
T
I
O
N
Before
has
F
the
C
A
U
T
I
O
N
Electrostatic
inside
warranty
this
outlet
interruption
result
are
adjustments
service
this
instrument
this
been
ailure
to
instrument
the
instrument
through
provided
the
instrument,
in
personal
many
injury
.
with
could
(in
which
instrument
adapted
set
the
when
discharge
instrument.
.
is
switched
the
protective
with
protective
of
the
protective
or
disconnection
injury
.
points
Be
in
extremely
or
service
the
instrument
procedures
protective covers
personnel.
is
not
used
as
be
impaired.
all
to
ac
means
is
the
power
the
(ESD)
Repair
switched
voltage
input to
ac
power
on
of
for
on
,
make
conductor
earth
(grounding)
careful.
that
removed should
specied,
This
instrument
protection
on,
make
of
the ac
the correct
cable
is plugged
or
near
input
damage
due
of
of
the
which
require
the
are
sure
power
to
sure
it
has
the
ac
contact.
conductor
protective
can,
if
operation
be performed
protection
must
be
intact)
its
primary
source
.
voltage
could
in.
connectors
misuse
been
power
,
inside
cable
earth
contacted,
provided
used
in
only
.
power
cause
can
damage
is
not
covered
properly
to
or
terminal
cause
of
the
only by
by
a
normal
circuitry
damage
circuits
under
a
the
to
Before
center
properly
connecting
and
outer
grounded,
any
conductors
and
touching any connector
iv
cable
should
.
to
of
the
the
touch
electrical
cable
together
the
frame
input,
.
of
momentarily
P
ersonnel
the
instrument
short
should
the
be
before
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are
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or assistance
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ARRANTIES
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A
CKARD
vii
Contents
1.
The
Ordering
Men
The
F
ront
Getting
Installing
T
Cleaning
T
To
T
T
2.
Channel
Displa
NN
N
N
Display
N
N
N
N
Scale
N
N
N
N
Offset
N
N
N
N
Bandwidth/Wavelength.
N
N
N
NN
Channel
N
NN
N
External
N
N
N
N
Calibrate
Instrument
information .
uand
rigger
o
o
o
N
N
N
N
N
N
N
N
NN
N
N
N
N
Key
Con
HP 83485A/B
panel
of
the
b
the
.
.
.
Connections
clean a
clean
test
test
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
non-lensed connector
an
adapter
insertion
return
Setup
ying
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
Menu
the
N
N
N
N
N
N
.
.
.
.
.
N
N
N
.
.
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
autoscale
N
N
N
NN
NN
NN
NN
N
N
N
N
N
scale
NN
NN
N
N
N
N
N
N
N
.
N
N
N
at
a
Glance
.
v
en
tions
Optical/Electrical
the
plug-in
est
p
erformance
plug-in
.
loss
Channel
.
.
.
NN
NN
N
N
N
N
N
N
N
N
N
N
N
.
N
N
N
N
N
N
N
N
N
.
loss
.
.
.
N
N
N
N
N
N
N
N
N
N
N
NN
.
.
.
for
.
.
.
.
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
.
mo
dule
.
.
Accurate
.
.
.
.
.
.
Setup
.
.
.
.
.
.
N
N
N
N
N
N
N
NN
NN
N
.
N
N
N
N
N
N
N
N
N
.
.
.
.
N
N
.
.
mo
.
.
.
.
.
.
.
N
N
N
.
.
.
.
N
N
.
.
.
.
.
.
.
.
.
N
N
N
.
.
.
.
.
.
dule
.
.
.
.
.
.
men
.
.
.
N
N
N
N
.
.
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.
Plug-In
.
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Measuremen
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us
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Mo
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ts
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dule
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1-4
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.
1-6
.
1-8
.
1-10
1-11
.
1-11
.
1-12
.
1-13
.
1-15
1-16
.
1-16
.
1-17
.
2-4
.
2-5
.
2-6
.
2-7
.
2-7
.
2-9
.
2-9
.
2-11
3.
Calibration Overview
F
actory Calibrations
Mainframe
O/E F
User Calibrations|Optical and Electrical
O/E User-W
Plug-in Mo dule V
Oset Zero Calibration .
Dark Calibration . . . . . . . .
Channel Skew Calibration
Calibration
actory W
avelength Calibration .
. .
. .
.
.
avelength Calibration
ertical Calibration
. . . . .
.
.
.
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.
Contents-1
3-4
3-4
3-6
3-7
3-9
3-11
3-12
3-14
3-15
Prob
External
Complete
4.
Specications
Sp
ecications
V
ertical
En
Characteristics
T
rigger
Declaration
5.
In
Case
If
the
If
the plug-in
Error
Index
e
Calibration
Scale
Calibration
sp
ecications
vironmen
input
of
of
Diculty
mainframe
does
Messages .
.
.
.
.
Summary
and
Regulatory
.
.
.
.
tal
sp
ecications
.
.
.
c
haracteristics
Conformit
do
es
not
not
op
. .
.
.
.
.
y
erate
. .
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Information
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op
erate
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..
..
..
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3-16
3-18
.
3-20
.
4-3
.
4-3
.
4-9
.
4-10
.
4-10
4-11
.
5-3
.
5-4
.
5-6
Contents-2
Figures
1-1.
Front panel
2-1.
Optical Channel
2-2.
Electrical Channel
2-3.
A typical
3-1.
Current Frame
3-2.
Plug-in calibration
3-3.
Oset Zero
3-4.
Dark
3-5.
Electrical
3-6.
External
T
ables
of the
Cal Status
Calibration
calibration
Channel
Scale
plug-in
Setup menu.
Setup menu.
display.
1Temp
condition .
menu
.
menu
.
Calibrate
Menu
.
.
module
.
.
.
.
.
.
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.
.
Menu
.
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..
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1-10
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2-3
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2-4
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2-13
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3-5
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. 3-10
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..
3-13
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.
.
.
.
.
.
.
3-15
.
.
.
.
.
.
.
.
.
.
.
.
3-17
.
.
.
.
.
.
.
.
.
.
.
.
3-19
3-1.
F
actory
3-2.
Optical
3-3.
Miscellaneous
3-4.
Complete
Calibration
and
Electrical
User
Calibration
Summary
Channel
Calibration
Summary
.
.
.
.
.
.
User
Calibration Summary
Summary
.
.
..
.
..
.
..
..
..
..
..
..
..
..
.
..
..
.
.
.
.
.
.
Contents-3
3-4
3-8
3-9
3-20
Contents
1
The
Instrument
Glance
at
a
The
What
This
options
the
the
lightwave
Instrument at
you'll nd
chapter
ke
front
describes:
and
accessories
y
conventions
panel,
connector
in this
rear
chapter
used
panel
care
in this
and
manual
ke
ys that
a Glance
do
not
displa
y
menus
on
the
screen
Understanding
The
C
A
U
T
I
O
N
input
Therefore
connectors
momentarily
A
void
touching
the
frame
earth-grounded
The HP
measurement
selectable
oscilloscope
greater
The
HP
the information
circuits
,
avoid
.
Before
short
of
the
83485A
bandwidth
noise
delity
83485B
in this
can
be
damaged
applying
static
connecting
the
center
the
front-panel
instrument.
to
prevent
optical/electrical
channels
,
one
settings
performance
for
high
speed
optical/electrical
chapter
will
by
discharges
any
coaxial
and
outer conductors
input connectors
Be sure
buildup
that the
of
static charge
plug-in
optical
.
In
the
is
excellent,
signals
and
lower
.
plug-in
help
you
successfully
electrostatic
to
the
cable
instrument
module
one
electrical.
bandwidth
while
module
operate
discharge
front-panel
to
the
connectors
of
the
cable
without
rst
is
.
incorporates
Each
modes
the
20
GHz
incorporates
the
instrument.
(ESD).
input
,
together
touching
properly
two
channel
of
12.4
mode
a
30
has
allows
GHz
.
two
GHz,
optical measurement channel and a 40 GHz electrical channel. The electrical
channel also has a reduced-bandwidth setting of 18 GHz for improved noise
performance.
The integrated optical channel reduces mismatch loss variation by eliminating
signal distorting cables and connectors associated with the use of external
receivers in order to accurately characterize
optical waveforms
. The optical
1-2
The
Instrument
at
a
Glance
channel
display
measurement
provides
1600
The
SONET/SDH
(formerly
requirements
a
front-panel
nm
HP
is
calibrated
of
the
for
consistent
using
83485A
reference
CCITT)
of
for
button
Bessel-Thomson
channel
potential
the
and
The
path,
no
designed
The
on
testing,
or
by
variability
lter
when
SONET/SDH
HP
83485B
similar
industry
to
electrical
tributary
for
for
general
a
very
to
standards
meet
measurement
electrical
measurements
at
1310
received
the
optical
signal's
accuracy
a
source
and
optical/electrical
receiver
G.957
and
transmitter
or
issuing
lter
is
inserted
repeatable
and
the
alternating
compliance
optical/electrical
the
HP
83485A
exist
anticipated
signals
with
purpose
measurements
nm
and
waveform
average
at
power
plug-in
that
Bellcore
compliance
an
HP-IB
into
HP
microwave
time
wasted
between
testing.
plug-in
,
for
for
10
Gb/s
future
channel
,to
evaluate
HP's
1550
nm
in
optical
power
.
In
any
wavelength
meter
.
module
is
measured
GR-253-CORE
testing.
command,
or
removed
switch.
by
manually
high-delity
module
10
Gb/s transmitter
testing,
standards
may
be
.
used
receiver
wide range
.
to
provide
power
addition,
between
also
is
to
comply
frequency
By
either
a
fourth-order
from
The
waveform
includes
the
HP 83485B
to
perform
performance
of
external
both
accurate
units
and
the
User
1200
a
calibrated
to
ITU-TS
response
pressing
the
measurement
switch
inserting
removes
and
characterization
a
reference
test. Although
has been
measurements
in
optical
Cal
feature
nm
and
the
removing
receiver
transceiver
receivers
,
The
HP
83485A
12.4 GHz
12.4 GHz
Switchable SDH/SONET
Trigger channel
The
HP 83485B
30
GHz
18
GHz
Switchable SDH/SONET lter for transceiver performance testing
Trigger channel input to the mainframe
optical/electrical
and
20
GHz
optical
and
20
GHz
electrical
input
to
optical/electrical plug-in
optical
and
channel
40
GHz
electrical
lter
the
plug-in
channel
channel
for
transceiver
mainframe
channel
module provides:
compliance
module
provides:
testing
1-3
HP
HP
83485A
83485B
options
options
Ordering
Option
Option
Option
030
032
034
receiver
Option
Option
Option
Option
Option
Option
Option
Option
0B
W
0B1
0B0
UK6
001
002
040
050
information
Built-in
Built-in
Built-in
HP
A
Deletes
Measured
Latest
Latest
F
ourth order
Fifth
STM-1/OC-3
STM-4/OC-12
STM-16/OC-48
83485A/B
dditional
set
the
performance
operating
operating system
order lter/10
Service
of
user
lter/10 Gb/s
155
Mb/s
622
Mb/s
2.488
Gb/s
Guide
user
documentation
documentation
data
system
rmware
rmware for
reference
Gb/s reference
SDH/SONET
reference receiver
SDH/SONET reference
SDH/SONET reference
for the
HP 83480A
the
HP
54750A
receiver
receiver
receiver
mainframe
mainframe
Optical
interface
connector
options
Option
Option
Option
Option
Option
Option
1-4
011
Diamond
012
FC/PC
013
DIN
014
ST
015
Biconic
017 SC
HMS-10/HP
47256
The
Instrument
at
Ordering information
a
Glance
Optional
accessories
HP
54006A
HP
54008A
HP
54118A
HP
10086A
SMA
SMA
APC
3.5 (f-f)
APC
2.4 (f-f)
APC
2.4 to
HP
81000AI Diamond
HP
81000FI FC/PC/SPC/APC
HP
81000KI
HP
81000SI
HP
81000VI
HP
81000WI
6
GHz divider
22
ns delay
500
MHz to
ECL
terminator
(f-f)
adapter
,HP
50 termination,
adapter,
adapter,
3.5 (f-f)
SC
connector
DIN
47256/4108.6
ST
connector
Biconic
probe
line
18 GHz
part number
HP part
HP part
trigger
1250-1158
number 1810-0118,
number
HP 11900B
adapter,
HP
11901B
HMS-10/HP connector
connector
interface
connector
interface
1250-1749
interface
interface
interface
1
each
1-5
Menu
The
keys labeled
Pressing
along
the right
menus
.
and
some front-panel
Key
Trigger,
side of
the display
Conventions
Disk,
and
Run
are
keys accesses
screen.
menus
These
all
examples
of
functions
menus
of
front-panel
that
are
called
are
softkey
keys
.
displayed
Softkey
front-panel
unlabeled
unlabeled
A
front-panel
shifted
next
Throughout
key
key
the
are
function,
key)
A
function
highlighted. T
An On
N
N
N
N
TestOn.
A softkey
functions
until
Freerun is highlighted. A choices softkey will be indicated throughout this
manual as:
When some softkeys
a
such as
menus list
keys.
key immediately
keys
dditional
front-panel
indicated
softkey
N
N
NN
NN
measurement will be made and the result will be provided. Some softkeys
functions
function,
to
the
label,
for
label,
for
for
will
be
with
on
or
O
NN
N
N
such as
.
In
Triggered
NNNNN
NNNNNNNNNNNNNN
N
Offset
keys
desired
this
shown
or
NNNNNNNNNNN
Sweep Triggered Freerun
functions other
T
o
activate
next
next
to
the
annotation
are
listed
.
These
press the
manual
example
example
key
by
the front-panel
example
On
o.
o
turn
softkey
this
is
highlighted,
NNNNNNNNNNNNNNNNNNNNNNNNN
require the entry of a numeric value
functions
blue front-panel
function.
front-panel
,
4
Timebase
N
N
N
N
N
N
N
N
N
N
N
N
Mask
,
pressed
as
and O
To
the
function
NN
NN
NN
NN
N
Sweep Triggered
case
,suchas
and
the
Local function
5
,
4
Shift
in its
turn the
function
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
you
could
NNNNNNNNNNNNNNNNNNNNNNNNN
than those
a
function
to
in
blue
5
.
N
N
N
N
N
N
N
N
N
N
N
NN
Align
which
4
Shift
4
Lo
cal
label
function
will
N
NN
NN
NN
NN
N
N
N
N
choose
or
choose
NNNNNNNNNNNNNNNNNNNNNNNNN
Calibrate probe
the
annotation
on
type
are
called
keys are
Softkeys
N
N
N
N
N
N
N
.
The
menu
5
key
5
.
can
o,
press
be
indicated
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
Freerun
NNNNNNNNNN
on
the
the
above
are
softkeys
followed
(above
be
on,
NN
NN
NN
N
N
N
Triggered
Freerun
Triggered
NNNNNNNNNNNNNNNNNNNNNN
accessed
softkey
display
shifted
Shift key
indicated by
indicated by
is
selected.
the
used
press
the
softkey
throughout
N
N
N
N
N
N
N
N
N
N
directly
menu,
on
the
are
and
below
functions
and the
displayed
by the
4
Stop/Single
to
turn
the
softkey
so
oers
you
by
pressing the
by
pressing
.
, are pressed the rst time
.T
press
screen.
called
some
.
front-panel
a
box
shading on
depend
Shifted
shaded
5
the
softkey's
so
O
is
this
a
choice
the
o enter or change the
by
the
the
The
softkeys
of
the
To
activate a
around
the
on
functions
shifted
front-panel
On
is
highlighted.
manual
of
softkey
softkey
.
the
as:
key
until
,
,
1-6
value
,
section.
use
the
general
purpose
knob
located
below
The
Menu and
the
front-panel
Instrument
Key
at
a
Glance
Conventions
Measure
1-7
The
HP
83485A/B
ule
The
HP 83485A/B
modules
features
Integrated, calibrated
Optical channel
Electrical measurement
2.5
Both
available for
are:
GHz
trigger
optical
bandwidths
30
GHz
optical
electrical
3.5
mm
(m)
channel.
optical/electrical plug-in
includes
channel.
and
electrical
of
12.4 or
channel bandwidth
channel
connectors on
(
2.4
mm
Optical/Electrical
the HP
83480A,
optical channel.
switchable
channel.
measurement
20 GHz.
bandwidth.
electrical measurement
(m)
connector
54750A
SONET/SDH
(
HP
83485A
and user
(
HP 83485B
on
electrical
modules
mainframes
channels
only
selectable
only
)
channel
are
lter
have
)
channel
Plug-In
two
of
.
Their
.
user
18
or
and
of
HP
several
main
selectable
40
GHz
trigger
83485B
Mod-
plug-in
.
)
One
One
Optical
input.
N
If
a
follow
1-8
probe
auxiliary
O
T
E
you
wish
rmware
the
power
power
channel has
to
use
the
HP
upgrade
must
installation
instructions.
connector
connector
an
HP
83485A/B
rst
be
installed.
.
.
universal
optical
plug-in
Order
adapter
module
the
HP
for
in
an
83480K
9/125
m
HP 54750A
communications
single-mode
digitizing oscilloscope
rmware
kit and
ber
,
The
purpose
including
signal,
so
signal
the
sets
signal
that
mainframe
time
base/trigger
of
the
sampling,
the
bandwidth
can
be
is
applied
.
The
plug-in
board
plug-in
for
the
viewed.
to
the
module
inside
The HP
module
mainframe
of
the
system,
The
output
ADCs
on
also
the
mainframe
83485A/B Optical/Electrical
is
to
provide
.
The
and
of
the
acquisition
provides
measurement
plug-in
allows
the
plug-in
a
trigger
.
The
module
the
oset
module
boards
signal
Instrument
Plug-In Module
channels
scales
to
is
an
inside
input
at
the
be
adjusted
analog
the
to
a
Glance
,
input
the
1-9
The
Instrument
The HP
at
a
83485A/B Optical/Electrical
Glance
Plug-In Module
Front panel
The plug-in
module takes
channel provides
units.
Bandwidths are
bandwidth. The
and an
connectors for
purpose use
softkey menu
module
The
probe
connector
input.
external trigger
HP 54700-series
,and
allows
.
front-panel
calibration
provides
Probe
calibration
of the
plug-in module
up two
of
the
calibrated measurement
selectable on
front panel
input.
of
both channels
the
plug-in
The
front
probes
a
key
for
each
channel
you
to
Probe
with
only
access
P
ower
HP
54700 series
power
and
the
connectors
to HP
scaling
are
four
mainframe
of optical
module
panel
also
,
A
ux
P
ower
that
displays
channel
setup
allow automatic
probes.
The front-panel
54700 series
not required
slots
.
waveforms in
to
optimize
has
two
channel
has
two
Probe
connector
the
softkey
features
channel scaling
probes for
for a
trigger
The
optical
power
sensitivity
inputs
P
ower
for
general
menu.
of
the
Aux
use as
a
input.
and
The
plug-in
P
ower
trigger
and
1-10
Figure 1-1. Front panel of the plug-in module.
The HP
83485A/B Optical/Electrical
The
Instrument
Plug-In Module
at
a
Glance
Getting the
To
ensure you
module vertical
move a
another.
plug-in module
Refer to
best performance
obtain the
calibration. The
vertical calibration.
Installing
Y
ou
do
not
modules
N
O
T
E
If
you
wish
a
rmware
follow
the
need
.
to
upgrade
installation
the
use
to
the
must
specied
from one
Chapter 3
plug-in
turn
o
HP
83485A/B
rst
be
instructions.
accuracy
calibration must
slot to
for information
module
the
mainframe to
optical
plug-in
installed.
Order
another
module
the
HP
,
you
,
on
performing
install or
in
an
83480K
must
perform
also
be
or
from
remove
HP
54750A
communications
a
plug-in
performed
one
mainframe
a
plug-in
the
digitizing
rmware
when
module
plug-in
oscilloscope,
kit
and
you
to
1-11
The
Instrument
The HP
T
o
use
higher
The
plug-in
HP
83480A,
installed
T
o
make
must
The
RF
nger-tighten
make
Do
C
A
U
T
I
O
N
not
mainframe
improper
at
a
Glance
83485A/B Optical/Electrical
the
plug-in
is
required.
in
slots
sure
be
a
good
connectors
sure
the
use
extender
.
module
54750A
2
the
ground
the
plug-in
The
plug-in
module
can
mainframe
and
3.
analyzer
connection
on
the
knurled
is
cables
be
securely
module
grounding when
Plug-In Module
,
the
HP
installed
.
meets
rear
of
screw
to
operate
using
using
83480A/54750A
in
slots
1
The
plug-in
all
of
the
published
from
the
plug-in
the
plug-in
on
the
front
seated
the
in
the
plug-in
extender
extender
cables
rmware
and
2
module
module
panel
mainframe
module
cables
.
revision
or
3
and
will
not
function
specications
module
are
of
the
to
spring
plug-in
.
outside
can
be
4
on
the
,
there
the
mainframe
loaded,
module
of
the
damaged
3.0
if
by
it
so
or
is
.
to
Trigger
The
external
source
example
source
source
The
C
A
U
T
I
O
N
C
A
U
T
I
O
N
maximum
The
input
Therefore, avoid applying static discharges to the front-panel input
connectors. Before connecting any coaxial cable to the connectors
momentarily short the center and outer conductors of the cable together
trigger
selection
,
if
the
is
listed
is
listed
circuits
follows
plug-in
as
trigger
as
trigger 4.
safe
input
can
level
module
be
range
the
slots
2.
If it
voltage
damaged
for
this
the
plug-in
is
installed
is installed
is
6
2
by
electrostatic
plug-in
in
V
+
module
module
slots
in
slots
peak
is
installed
1
and
3
and
ac
(+16
discharge
is
2,
6
1
V
then
4,
then
dBm).
(ESD).
.
The trigger
in.
F
or
the trigger
the
trigger
,
.
Avoid touching the front-panel input connectors without rst touching
the frame of the instrument. Be sure that the instrument is properly
earth-grounded
to prevent buildup of static charge
.
1-12
Cleaning
ments
A
ccurate
following
and
guidelines to
measurements
Keep
connectors
Use dry
Use the
Use
When
sure
or
connections
cleaning
care
inserting a
that
adapter
in
the ber
.
Connections
repeatable
measurements
achieve the
on a
ber-optic system:
covered
when
whenever
methods
handling
all
ber-optic
described
ber-optic connector
end does
best
not
in
possible
connectors
not touch
for
require
possible
use
.
in
this
into a
the
A
ccurate
clean
performance
.
section.
.
front-panel
outside
connections
when
adapter
of
the
mating
Measure-
.
Use
the
making
,
make
connector
Because
ensure
gaps
index-matching
Use
Dry
example
has
improve
C
A
U
T
I
O
N
Hewlett-P
be
gels
you
manufacturer
of
the
good
,
damaged
dry
connections
connections
,
Diamond
40
dB
return
(and
ackard
applied
,
may
think
to
be
the
small
size
connections
ber
ends
compounds
.
Dry
can
be
HMS-10/HP
loss
or
can
degrade)
strongly
their
instruments
dicult
use
for
to
of
such
information
of
cores
used
.
P
oor
connections
,
contamination,
.
connectors
used
with
physically
,
FC/PC,
better
,
making
performance
recommends
and
remove
and
compounds
on
application
Cleaning
in
optical
result
and
improper
are
easier
contacting
DIN,
and
a
wet
connection
.
that
index
accessories
can
is
. Some
contain damaging
necessary
and
Accessories
bers
from
to
clean
ST).
matching
, refer
cleaning
,
care
must
core
misalignment,
use
and
and
to
connectors
If
a
dry
connection
will
probably
compounds
compounds,
particulates.
to the
procedures
be
used
removal
keep
clean.
(for
not
NOT
such as
compound
.
to
air
of
If
Item HP Part Number
Isopropyl alcohol 8500-5344
Cotton swabs 8520-0023
Small foam swabs 9300-1223
Compressed dust remover (non-residue) 8500-5262
1-13
The
Instrument
at
a
Glance
Cleaning Connections
for Accurate
Dust
Caps
Measurements
Provided
with
Lightwave
Instruments
Inspecting
Cables
Fiber-Optic
Consistent
indication
the
insertion
you
test
your
receipt,
in
the
and
future
Connector
lightwave
as
little
as
is
another
the
better
physically
although
measurements
that
you
have
loss
and/or
cables
retain
the
if
any
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(or
insertion)
connector
0.1
dB
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of
important
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larger
contacting
30
to
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dB
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FC/PC
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HMS10/HP
ST
dust
with
good
return
and
accessories
measured
loss
Typical
loss
with
factor
.
the
return
connectors
is more
Item HP
shutter
cap
dust
cap
dust cap
dust
cap
dust
cap
cap
your
connections
loss
of
data
has
occurred.
is
one
important
values
high
performance
It
is
a
measure
loss
,
have
common.
Part
08145-64521
08154-44102
08154-44105
5040-9364
5040-9361
5040-9366
lightwave
.
However
your
lightwave
for
insertion
for
comparison,
are
less
of
the
smaller
return
Number
equipment
,
you
cables
loss
and
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performance
than
1
dB
connectors
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the
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losses better
are
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may
or
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accessories
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best
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to
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Y
ou
can
visually
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imperfections
a
microscope
metal,
or dents
Visible
imperfections
it is
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on the
(100X
inspect
in the
cable end
to
200X
metal
not
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1-14
your
, visual
magnication)
as
touching
cables
inspection
face can
well
as
the
be detected
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core
of
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inspect
imperfections.
ma
y
ends
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not
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helpful.
cracks
or
end
face
Inspect
performance
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chips
in
for
contamination,
the
ber
(unless
the
ber
for cracks
the
imperfections
or
itself
raised
and chips.
.
Use
To
clean a
Cleaning Connections
non-lensed connector
The
Instrument
for Accurate
at
a
Glance
Measurements
CA
UT
IO
N
Do not
can leave
1.
2.
3.
4.
use any
lmy deposits
Apply
isopropyl
Cotton
end
after
Before
cleaning
connector
Apply
isopropyl
Clean the
paper
back
Some
remove
them.
type of
swabs
cleaning.
.
ber
and
amount
particles
This
foam
on ber
alcohol
can
be
the
ber
alcohol to
end
with
forth
across
of
wiping
when
technique
swab
ends that
to
a
clean
used
as
end,
clean the
a new
the
swab
the
or
mild
application
can
remove
to
clean
optical
can
lint-free
long
as
no cotton
ferrules and
clean lint-free
or
lens
ber
end
several
scrubbing
of
alcohol
or
displace
ber
degrade
cotton swab
bers remain
cotton
paper
.
Move
times
of
the
alone
particles
ends
.
F
oam
performance
or lens
other
parts
swab
the
swab
.
ber
end
will
not
smaller
swabs
.
paper.
on the
of
or
lens
can
help
remove
the
or
than
ber
paper
lens
one
.
micron.
5.
Immediately
lens
6.
Blow
ltered,
the
ber
Nitrogen
paper
across
dry
.
the
dry
,
compressed
end
face
gas
the
ber
connector
.
or
compressed
end
air
end
.
with
face
Aim
dust
a
clean,
from
the
compressed
remover
dry
a
distance
can
,
lint-free
gas
also
of
cotton
6
to
8
at a
shallow angle
be
used.
swab
inches
or
using
to
Do
not
C
A
U
T
I
O
N
particles
shake,
compressed air
7. As soon as the connector is dry
in
the can
tip,
or invert
canister.
into the
compressed air
air.
Refer to
canisters
instructions
,
, connect or cover it for later use
because
provided
this
on
releases
the
.
1-15
The
Instrument
at
a
Glance
Cleaning Connections
To
clean an
for Accurate
adapter
Measurements
1. Apply
2.
3.
4.
C
A
U
T
I
O
N
Do not
particles in
compressed
T
o
isopropyl alcohol
Cotton swabs
cleaning. The
enough to
Although foam
thin, and
adapters greatly
Clean
the
adapter
Dry
the
inside
Blow
through
Nitrogen
shake
gas
,
tip
the
air canister
test
insertion
can be
foam swabs
t into
swabs can
the risk
of the
the
adapter using
or
,
or
invert
can
into
to a
used as
adapters
of
other
outweighs
with
the
foam
adapter with
compressed
compressed
the
air
.
.
loss
clean
foam
swab
long as
listed in
no
this section's
.
leave
lmy
deposits
contamination
the
risk
of
swab
.
a clean,
ltered, dry
dust
remover
air
canisters
Refer
to
instructions
.
cotton
bers
introduction
,
these
buildup
on
contamination
dry
,
foam
, compressed
can also
be used.
,
because
provided
remain
deposits
the
by
swab
inside
foam
.
air.
this
on
after
are
small
are
very
of
swabs
releases
the
.
Use
an
test
insertion
following
HP
71450A
appropriate
equipment:
loss
or
lightwave
.
Examples
71451A
of
optical
source
test
spectrum
and
a
compatible
equipment
analyzers
lightwave
congurations
with
Option
white light source
HP 8702 or 8703 lightwave component analyzer system
HP 83420 lightwave test set with an HP 8510 network analyzer
HP 8153 lightwave multimeter
with a source and power sensor module
1-16
receiver
include
002
to
the
built-in
To
test return
loss
The
Instrument
at
a
Glance
Use an
coupler to
appropriate lightwave
test return
the following
HP
8703 lightwave
HP
8702 analyzer
coupler
HP
8504
precision
HP
8153
lightwave
conjunction
HP
81554SM
loss.
equipment:
component
with
reectometer
multimeter
with
a
lightwave
dual
source and
source,
Examples
the
appropriate
a
lightwave
of
test
analyzer
with
a
source
coupler
HP 81534A
equipment
source
,
and
return loss
receiver
receiver
power
module
,
and
lightwave
congurations
,
and
lightwave
sensor
module
include
in
1-17
The
Instrument
at
a
Glance
2
Channel
Setup
Menu
Channel
What
you'll
This
chapter
is
included.
The
C
A
U
T
I
O
N
input
Therefore
,
connectors
momentarily
Avoid
touching the
the
frame
earth-grounded
Setup Menu
nd
in
this
chapter
describes
circuits
avoid
.
Before
short
the
Channel
can
be
applying
connecting
the
center
front-panel
of the
instrument.
to
prevent buildup
Setup
menu.
damaged
static
discharges
any
and
input
Be
A
ke
y
tree
by electrostatic
to the
coaxial
outer
cable to
conductors
connectors
sure
that
the
of
static
and
description
discharge (ESD).
front-panel input
the connectors
of
without
instrument
charge
.
of
the available
the cable
rst
is
properly
functions
,
together.
touching
At
the
top
of
the
access
is
displayed
There
softkeys
Quick
N
O
T
The plug-in
softke
ys
to
are
and
Start
E
are
the
Channel
on
several
their
Guide
module has
similar
plug-in
the
types
,
some
module
Setup
right
side
of
functions
supplied
both an
electrical channel
dierences
note when the user would see dierences
2-2
are
the
menu
for
each
of
the
screen
softkeys
is
with
available
provided
the
mainframe
in
and an
exist.
The
examples
if using the electrical channel.
4
Channel
input.
when
.
the
optical
in
5
keys
The
the
A
description
HP
83480A,
.
channel.
this
book
.
These
Channel
4
Channel
Although
use
the
keys
Setup
5
key
of
the
54750A
man
optical
channel
give
menu
is
pressed.
dierent
User's
y
of
the
and
you
Channel
Setup
Menu
Figure 2-1. Optical Channel Setup menu.
2-3
Channel
Setup
Menu
Figure
2-2.
Electrical
Displaying the Channel Setup menus
To display the optical Channel Setup
2-4
Channel
Setup
menu.
menu, press the optical
4
Channel
5
key.
Channel
Setup
Menu
T
o
key
a
a
a
a
a
a
display
.
a
a
a
a
the
a
a
a
aa
aa
aa
aa
a
a
a
a
a
a
a
Display
The
Display
display
adjusted
The
left
is
channel
of
the
turned
is
on,
so
waveform area.
o,
measurement
setups
.
When
the
channel
turned
o,
pulse
that channel
functions.
Even
though
trigger
analyzer
turned
source
will
on,
or
electrical
a
a
a
a
a
a
a
a
function
a
waveform
the
waveform
number
or an
results
parameter
is
stopped,
the
channel
or
as
not
trigger
unless
Channel
turns
is
is
, vertical
Setup
the
channel
displayed
clipped
scaling, and
o
menu,
display
for
of
They remain
automatic measurement
share
the
same
area of
display
is
o,
the
waveform
measurements
a
function
a
math
unless
unless
display
source
function
it
one
is
needed
is
o,
or
in
more
is
you
using
press
o
that
channel,
the
display
oset are
on the
display
is performed.
the display
display
are
stopped
as
an
can
the
Math
of
the
one
the
and on.
.
displayed
operand
still
use
menu.
other
of
the
electrical
When the
unless the
at
until
the
The automatic
as
the
channel
for
that
channel
and
acquisition
for
waveform
the
plug-in
However
channel
channels
4
Channel
channel
oset is
the
bottom
channel
as
,
the
displays
.
5
is
on
math
a
are
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
K
ey
Path
4
Channel
5
Display
N
2-5
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a
a
Setup
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a
a
a
a
a
a
aa
aa
aa
aa
a
a
a
a
a
a
a
a
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Scale
The
Scale softkey
mode
is o,
1-2-5
sequence.
vertical
values
The
with
unknown
K
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Path
4
Channel
scaling in
in 1
units the
the Units
are
N
N
N
N
N
N
N
N
Scale
5
controls the
then the
knob and
When ne
1mV
increments.
mV increments
scale is
softkey
available
N
N
NN
NN
NN
N
displayed
.
The
on
vertical scaling
arrow keys
mode is
on, the
You
, independent
in
depend
choices
electrical
for
channels
can
of the
on
units
of
change
knob
also
ne
the
are
only
the
waveform.
the
and
arrow
use
mode
unit
volts
.)
vertical
the
keypad
selection.
of
measure
or
watts
keys
If
the
scaling
change
to
enter
selected
.
(Amperes
ne
in
a
the
,
or
2-6
a
a
a
a
a
a
a
a
aa
aa
aa
aa
a
a
a
a
a
a
a
Offset
The
Oset softkey
control
calibrated.
center
resolution
wattage
because
zero
Y
ou
ne
When
is
the
inside
adjacent
not
on analog
of the
two graticule
, unlike
power
can
use
mode
an
HP
connected
oset
the
to
be
adjusted
a
a
a
a
a
a
a
a
moves the
oscilloscopes.
The oset
graticule area,
channel scale
voltage
level
can
the
knob
also
works
54700-series
to
the
probe
control
active
adjusts
probe
the
trigger
automatically
waveform vertically
The advantage
voltage for
and the
.F
or optical
divisions above
displays
be
viewed
,
arrow
with
.
A
input
oset.
active
power
the
probe
will
,
\negative"
clearly
keys
,
probe
connector
external
connected
function,
.
.
of digital
electrical channels
range of
channels,
the bottom
or
keypad
scale
when
is used
adjacent
factor
to the
but
oset
the
power
the
to
change
with the
the
of the
oset
Channel
It
is
similar
is the
is
6
12
oset
screen.
levels
is
the
plug-in module
to the
and oset
auxiliary power
channel
to
oset
is
voltage
times
wattage
do
not
set
to
oset
channel input,
of the
scale factor
Setup
the
position
that
at
the
the
full
is
the
This
is
exist
zero
watts
setting.
hybrid
connector
it
but
and
will
Menu
is
set
the
.
The
The
optical
displays
K
ey
Path
4
Channel
a
a
a
a
aa
aa
aa
aa
a
Bandwidth/Wavelength.
Y
ou can use the
bandwidth and wavelength settings and turn the lter on
optical channel.
5
a
a
a
a
a
a
a
channel
the
value
N
N
N
N
N
N
N
N
N
N
N
N
N
Offset
a
a
a
a
a
a
a
a
a
aa
aa
displays the
in
volts.
N
N
N
N
N
NN
aa
aa
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
a
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Bandwidth/Wavelength.
N
value
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
aa
aa
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
in
watts
and
the
electrical
aa
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
aa
aa
aa
a
a
a
a
a
a
a
a
a
.
.
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
..
softkey to change the
and o on the
channel
2-7
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
Bandwidth
K
ey Path
N
N
N
N
N
N
Filter
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
On
Channel
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
Off
N
N
N
N
N
N
HP
optical
Y
20
HP
Y
bandwidth.
4
The
into
HP
STM-4/OC-12.
Setup
83485A:
channel
ou
can
use the
GHz
bandwidth.
83485B: This
ou can
Channel
use the
N
N
N
Bandwidth/Wavelength.
5
Filter
the
channel
83485A:
Menu
This
NN
NN
NN
NN
N
N
N
N
N
function
Option
Option
function
only
Bandwidth function
function is
Bandwidth function
N
N
N
N
N
N
N
N
N
N
N
N
NN
allows
to
create
030
is available
when the
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
a
SONET/SDH
a
SONET/SDH reference
is
155
34
is
2.488
lter is
available on
N
N
N
N
N
NN
NN
Mb/s
switched o.
to select
to
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
..
STM-1/OC-3.
Gb/s
on the
select
N
N
STM-16/OC-48.
electrical channel
either
the
the
electrical
either
the
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Bandwidth
Bessel-Thomson
N
receiver.
Option 32
N
N
N
12.4
GHz
channel
18
GHz
lter
is 622
and on
or
only.
or
40
to
be
the
the
GHz
switched
Mb/s
K
ey
Path
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Wavelength
K
ey
Path
NN
HP
83485B:
fth-order
4
Channel
NN
N
N
N
N
This
function
The
W
measurements
user-calibrated
from
1000
performing
4
Channel
2-8
Option 40
lter
.
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
Bandwidth/Wavelength.
5
avelength
N
NN
NN
Bandwidth/Wavelength.
5
N
is
.
F
wavelength
nm
to
a
calibration.
N
N
N
N
N
N
N
N
N
N
N
NN
NN
is
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
only
available
function
actory
1600 nm.
NN
NN
NN
NN
NN
N
N
N
N
N
N
10
N
N
N
N
N
N
NN
N
N
N
N
selects
calibrated
is
Refer to
N
N
N
N
N
NN
NN
NN
NN
Gb/s
fourth-order
N
N
N
N
N
N
N
N
N
N
N
N
N
on
the
also
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
.
the
desired
wavelengths
available
Chapter 3
N
N
N
N
N
NN
NN
.
N
N
N
N
N
N
N
N
N
Filter
.
optical
and
N
NN
NN
N
NN
NN
NN
N
Wavelength
.
lter
.
Option
N
N
N
N
N
N
N
N
N
N
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N
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N
N
N
N
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On
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wavelength
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1310
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N
N
N
N
N
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N
N
N
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N
N
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N
N
N
N
N
N
N
N
N
N
N
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N
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N
N
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N
N
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manufacturing environments
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N
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N
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N
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and
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Setup
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Menu
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N
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N
N
N
N
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function
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N
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N
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scale
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N
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scale
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unit
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N
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gain
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N
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N
N
N
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N
N
N
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N
N
N
N
N
N
N
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N
N
N
N
N
N
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N
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a
a
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calibrate
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N
N
N
N
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N
N
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N
N
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N
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N
N
N
N
N
N
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N
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N
N
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N
N
N
N
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N
N
N
N
N
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N
N
N
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N
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N
N
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N
N
N
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N
N
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N
N
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N
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N
N
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N
N
N
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N
N
N
N
N
N
N
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NN
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Volt
N
N
N
N
N
N
N
N
N
N
N
N
N
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N
N
NN
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N
N
N
N
N
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N
N
N
N
N
N
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N
N
N
N
N
N
N
N
N
N
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N
N
N
N
N
N
N
N
N
Ext gain
between
O/E
present
NN
NN
N
N
N
N
N
N
N
N
N
N
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gain
N
N
N
N
N
N
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N
N
N
N
N
N
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NN
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N
N
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N
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converter
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N
N
N
N
N
N
N
N
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calibration
or
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status
2-11
N
N
N
N
N
NN
NN
Skew
Channel
NN
NN
N
The
display
compensate
place
power
use
dierence
of
can
Setup
Menu
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function
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Skew function
for
the
triggered
splitter
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connected
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use Skew
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o
skew
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urn
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Expand
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Adjust
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both
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the
to overlay
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channels
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in cable
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one waveform
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the rising
position of
+100
lengths.
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display
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two
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45
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edges
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to
using
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a
timing
the
shapes
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to
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you
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
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Channel
5
Calibrate
N
N
N
N
N
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N
N
N
N
N
N
N
N
N
N
N
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N
N
N
N
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N
NN
NN
NN
NN
NN
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N
status
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N
N
N
N
N
N
N
N
N
N
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The
Cal
Status
function displays
a screen
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Figure 2-3
Setup
Menu
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ey Path
Current
Date
4
Channel
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module
the
last
N
N
NN
NN
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N
N
N
N
N
N
N
Calibrate
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the
current
calibration
plug-in
N
N
N
N
N
N
N
N
N
N
N
date
time
module
N
NN
N
NN
NN
Cal
Figure
.
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
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2-3.
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and
time
That
way
calibration
NN
NN
typical
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ou
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compare
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display
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how
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long
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the
last
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Current
1Temp
Frame
This
is the
mainframe
degrees
of
the
mainframe
warmer
temperature
calibration
the
mainframe
at
the
change
was
last
on
the
performed.
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currently
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inside
A
of
positive
as
compared
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instrument
number
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since
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2-13
Channel
1
Calibration
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whether
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Setup
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instrument displays
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last
if:
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mainframe
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than
C
5
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repaired, reprogrammed,
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temperature at
or
Uncalibrated
calibration is
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still valid.
or removed
Plug-in
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depending on
A
calibration
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and
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calibration
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was
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Plug-in
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
Offset
K
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NNNNNN
NNNNNNNNNNNNNNNNN
O/E cal
N
N
N
N
N
N
N
N
N
N
N
N
zero
Uncalibrated
The
Plug-in
temperature
temperature
this
temperature 1
then
you
dc
accuracy
N
N
N
N
N
N
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Oset
channel.
is
oset
drift,
after
the
been
performed,
indicates the
function
delta.
of the
must
perform
.
Zero
Since
the primary
this function
plug-in
lists
the
The
temperature
mainframe
is
greater
a
plug-in
function
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module vertical
plug-in
model
when
than
source
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useful:
module
number
1
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C
6
5
module
a
quick
of
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vertical
,
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the
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last
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number
last
to
oset calibration
error
described
,
date
change
was
performed.
mainframe
achieve
on
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on
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optical
in
Chapter
is
invalid.
,
time
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from
calibration,
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specied
optical
channel
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if
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P
erforming
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Channel
5
4
plug-in
N
NN
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Oset
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NN
NN
NN
N
N
N
N
N
N
N
N
module
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N
NN
N
N
NN
N
N
N
N
N
N
N
NN
N
Offset
has
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NN
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N
N
N
N
N
N
N
N
N
N
N
N
N
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N
NN
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much
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The plug-in module is provided with factory optical calibrations at 1310 nm
and 1550 nm. The O/E Calibration function allows you to calibrate the
instrument for use at one additional user-dened wavelength between
1200 nm and 1600 nm. This calibration does not
aect the factory
calibrations.
2-14
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
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N
N
N
N
N
N
N
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probe
NN
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N
N
N
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signal
a
voltage
N
N
N
N
N
N
N
N
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NN
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N
N
N
N
N
N
N
N
Calibrate
analyzer
to
is
internally
probe to
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
probe
calibrates
the
actual
compensates
routed
the plug-in
to
the
tip
attenuation
for
any
to
the
of
the
oset
probe
and then
probe
ratio
the
tip
of
for
press:
by
the
probe
HP
setting
probe
may
probes.
Channel
the
.
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introduce
Setup
probe
analyzer
.
The CAL
Menu
also
Key
Path
4
Channel
N
NN
NN
N
N
N
N
N
N
N
N
N
N
Calibrate
5
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Calibrate probe
2-15
Channel
Setup
Menu
3
Calibration
Overview
Calibration
What
you'll nd
F
actory
User
Calibrations|Optical
Complete
This
chapter
modules
an
they
.
understanding
were
included
Calibrations
Calibration
describes
It
is
intended
in
the
in this
intended
of
manuals
Overview
chapter
and
Electrical
the
calibration
to
give
you,
the
to
various
be
used.
provided
calibration
There
with
or
of
the
mainframe
the
calibration
procedures
is
a
description of
the
plug-in
and
laboratory
available
the calibration
modules
the
and
plug-in
personnel,
,
and how
probes
.
menu
Proper
HP
that
intervals
This
factory
performance
adjustment
shipping
may
calibrations
Guide
The
performed by the end user
discuss the individual calibrations
at the end of each of these sections summarizing the main areas
calibration
54750A/83480A
both
factory
in
order
chapter
is
divided
calibrations
to
all
or repair
the instrument
purchase the
themselves using
.
second
part
of
is
critical
and
and
to
perform
.
A
specications.
may
to
their
associated
user
calibrations be
measurements at
into
three sections
factory
be
necessary
back
measurement
calibration consists
If an
instrument fails
.
to
an
authorized
required instrumentation
the optional
the
chapter
addresses
. Subsections in each of the
. In addition, there will be summary tables
accuracy
modules
and
implemented
their
.The
rst
F
or
most
service
and
perform
HP
83480A,
calibrations
and
repeatability
accessories
at
the
published
section
describes
of verifying
to meet
users
,
this
center
the
54750A
that
are
two main sections
require
recommended
specications
instrument
specications
will
mean
.
Some
users
factory
timebase
Service
routinely
addressed.
The third part of the manual consists of a complete calibration summary
table at the end of the chapter
. Both factory and user calibrations must be
3-2
.
The
.
,
Calibration
Overview
C
A
U
T
I
Calibration
Required
O
N
interval
warm-up
performed
repeatability
The
applying
connecting
and
input
that
charge
used
HP
basis
calibration
specied
recalibrations
calibrated
adjust
or
time
The
calibrations
instrument
the
regularly
.
input
circuits
static
a
coaxial
outer
connectors
connectors
the
instrument
.
It
is
strongly
when
connecting
recommends
.
HP
designs
interval
operating
are
at
an
the
calibration
measurement
instrument
mentioned
to be
entire
hour
in
order
can
be
discharges
cable
of
without
is
properly
recommended
to
that
the
instruments
provided
environment.
necessary
HP
service
cycle
accuracy
requires
in
the
.
damaged
to
to
the
cable
rst
electrical
factory
.
facility
based
needs
a
1
hour
in
this
standby
to
ensure
the
the
proper
by
electrostatic
front-panel
connectors
together
touching
earth-grounded
that
channel
calibration
to
meet
specications
that
the
instrument
T
o
maintain
W
e
recommend
every
on
their
.
warm-up
chapter
are
setting.
input
,
momentarily
.
A
void
the
frame
an
antistatic
inputs
be
that
12
months
particular
period
performed.
It
must
measurement
discharge
connectors
touching
of
the
instrument.
to
prevent
mat
,
particularly
performed
over
is
operated
specications
the
plug-in
.
Users
operating
before
be
It
is
turned
any
accuracy
(ESD).
.
Before
short
the
the
front
buildup
and
wristband
TDR
on
a
periodic
the
recommended
within
,
periodic
module
are
encouraged
environment
of
the
not
enough
on
and
and
A
void
center
panel
Be
sure
of
static
inputs
the
be
for
running
be
.
to
the
for
Remote
operation
Remote
programming commands
83480A/HP
is
slightly
54750A
dierent
Programming's
than
the
operation
for calibrations
Guide
.
P
erforming
of
front-panel
are included
calibrations
calibrations
in
the
.
HP
remotely
3-3
F
actory
The
following calibrations
Calibrations
are performed
at
the
factory:
Calibration What
Mainframe
O/E
F
actory
Calibration
W
avelength
Calibration
1
Refer
to
\O/E
User-W
Mainframe
O/E
Factory
Accurac
continuity
timescale
The
responsivity
avelength
Calibration
Calibration
Wavelength
T
is calibrated
y
and
of
the
photodetector
"
in
this
able 3-1.
chapter
Calibration
Factory Calibration
Measurements
Aected
Channels
aected:
optical
&
electrical.
All
time
base
measurements
as
rise
e
ye
width,
Channels
optical.
accurac
time
,
and
aected:
Amplitude
y
of
all
fall
such
time
jitter
optical
channel
measurements.
Optical
power
meter
accurac
y
.
.
Annually
center
temp
and
more
,
temperature
.
service
Annual
re-calibration
standard
Summary
Recommended
Interval
at
HP
service
or
if
operating
has
changed
from
C
5
calibration
.
See
remains
manual.
factory
of
wavelengths.
Softkey
4
or
Not
5
Utility
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
Calibrate
F
F
F
F
FF
FF
FF
F
F
F
F
F
Calibrate frame
user
accessible
Path
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
FF
FF
F
F
F
F
F
F
F
F
1
.
Mainframe Calibration
Mainframe calibration
aects both optical and electrical measurements
Mainframe calibration improves timebase accuracy
measurements such as rise time
aected by the timebase accuracy
, fall time
.
, eye width, jitter
3-4
.
. All timebase
, and so forth are
Calibration
Overview
Factory Calibrations
The
calibration
There
is
a
mainframe
there
is
a
Refer
to
the
about
the
protect
T
C
A
U
T
I
O
N
C
A
U
T
I
O
N
o
the
Do
54750A
A
or
5C
switches
prevent
access
not attempt
Service
mainframe calibration
when the
dierent than
calibration
has
changed since
mainframe
key
sequence:
factors
switch
calibration
drawing
optional
mainframe
are
on
the
to
that
shows
HP
calibration,
.
access
hole
to
the
to
this
a
Mainframe
Guide
.
switch.
ambient operating
the operating
was performed.
the
last
calibration,
4
Utilit
check
N
N
N
Calibrate
5
,
y
stored
back
panel
be
protected
each
83480A,
mainframe
calibration
should
T
o
see
mainframe
the
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
in
the
nonvolatile
of
the
or
unprotected.
switch's
54750A
and
the
position
calibration
without
be
performed
temperature
temperature
how
much
calibration
Calibration
N
N
N
N
N
N
N
,
and
then
instrument
function
Service
Guide
of
switch,
consulting
on
a
periodic
has
changed
at
which
the
operating
and
status
N
N
N
NN
N
N
N
N
N
N
N
Cal
RAM
that
Next
and
for
the
place
the
the
by
pressing
N
N
N
N
N
N
N
N
N
N
N
N
N
N
status
of
the
instrument.
allows
to
the
protected
more
rear-panel
a
sticker
the
HP
basis
,
by
and
remains
last
mainframe
temperature
date
of
the
N
the
N
NN
N
N
.
on
the
switch
position.
details
memory
over
83480A,
annually
last
following
,
The
temperature
following
gure
change
is
displayed
.
Figure 3-1. Current Frame 1T
at
the
top
of
the
display
emp condition
as
shown
in
the
3-5
Calibration
Overview
Factory Calibrations
If
the
Current
mainframe
be
placed
of
the
O/E
should
in
current
F
actory
an
calibration.
Frame
either
ambient
1Temp
be
air
Wavelength
listing
calibrated
is
at
temperature
Calibration
greater
the
that
than
current
is
within
C,
6
5
operating
C
5
then
the
temperature
of
the
or
temperature
Optical/electrical
photodetector
is
dependent on
annually
service
center
mainframes
The
HP
(850
nm
calibrate
This
calibration
section
on
responsivity
.
Most
for
re-calibrated.
83480-series
or
1310/1550
the
instrument
User
(O/E)
factory
proper O/E
customers
this
calibration
optical
nm).
for
does
not
Calibrations
wavelength
.
The
accuracy
calibration. O/E
return
their
at
the
modules
The
O/E
use
at
one
aect
the
factory
for
additional
calibration,
of
all
calibrations
optical
have
same
one
plug-ins
time
Calibration
additional
calibrations
information
optical
they
or
two
standard
function
user-dened
.
compensates for
channel
to
are
should
an
authorized
having
measurements
be
performed
their
wavelengths
allows
you
wavelength.
See
the
following
on
this
procedure
the
HP
to
.
3-6
User
The
Calibrations|Optical
following calibrations
O/E
User W
Plug-in
Oset
Dark
Probe
Channel
External
avelength Calibration
Module V
Zero Calibration
Calibration
Calibration
Skew
Scale
can be
performed
ertical Calibration
and
by
the
Electrical
user:
Electrical
adjusting
probes
using
Optical
adjusting
monitoring
performing
C
A
U
T
I
O
N
The input
applying
connecting
and
input
the
An
when
channels
timebase skew
,
cables,
external
channels
timebase
circuits can
static
a
outer
connectors
connectors
instrument
antistatic
working
have
and so
probes
have
and
adjusting
a
user-dened
discharges
coaxial
cable
without
is
properly
mat
and
with
TDR
calibration
, for
forth
calibration
skew
internal
O/E
be
damaged
to
the
to
the
of
the
cable
rst
earth-grounded
wristband
modules
procedures
for:
matching propagation
procedures for:
osets
responsivity
by
electrostatic
front
connectors
together
touching
are
strongly
panel
adjustment
input
,
momentarily
.
A
void
the
frame
to
prevent
recommended,
.
delay
discharge
connectors
touching
of
the
instrument.
buildup
between
(ESD).
.
Before
short
the
the
front
of
static
particularly
channels
A
void
center
panel
Be
sure
charge
,
.
3-7
Calibration
User Calibrations|Optical
T
able
3-2.
Overview
Optical
and
Electrical
and Electrical
Channel
User
Calibration
Summary
Calibration What
O/E
User
W
avelength
Calibration
Plug-in
V
ertical
Calibration
Oset Zero
Calibration
Dark
Calibration
The
responsivity
V
ertical
scale
electrical and
channels.
Vertical
for
the
only
.
doesn't
scale
Dark
the
without
and
the
algorithm.
is calibrated
photodetector
oset
and
accurac
y
for
optical
oset is
optical
This
calibration
include
accurac
y
.
calibration
channel
oset
any
light
this
value
extinction
ratio
vertical
both
calibrated
channel
vertical
measures
signal
present
is
used
Measurements
Channels
optical
at
user
Channels
electrical.
electrical vertical
measurements
V
p
to
extinction
optical
Channels aected:
An
y
optical
measurements
V
p
to
extinction
Channels
electrical.
in
aected:
channel
measurements
wavelengths.
aected:
An
y
optical
such
,
e
ye
height,
p
ratio
,
power
meter
vertical
including:
,
e
ye
height,
p
ratio
.
aected:
Extinction
Aected
optical.
optical
and
optical.
optical
as
the
ratio
or
and
All
&
&
.
Recommended
Annual
re-calibration
dened
non-factory
P
erform
after
once
every
10
continuous use
temperature
than
C
2
.
Perform
a plug-in
calibration
published
the
performs
of
it
non-critical
Before
measurements
or
last
plug-in
performed.
oset
the
plug-in
should
extinction
oset has
dark
vertical
in
specications.
zero
only
only
measurements.
calibration
an
y
hours
or
changes
order
calibration
the
vertical
be
ratio
if
the
changed
calibration
Interval
of
user
wavelengths
power c
during
if
operating
b
y more
vertical
to
meet
Because
oset
calibration,
used
before
vertical
since
or
after
ycle or
portion
scale
the
a
is
4
Optical
F
F
F
F
Calibrate
F
F
F
F
O/E
4
Utility
F
FF
FF
Calibrate
F
F
F
F
Calibrate
4
Optical
F
F
F
F
Calibrate
F
FF
F
Offset
fast
4
Shift
F
F
F
F
Extinction
F
F
F
F
Dark
F
F
F
F
F
F
F
F
F
F
F
FF
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
FF
F
F
F
F
F
F
F
F
F
F
F
F
F
F
5
FF
F
F
F
F
F
F
K
Channel
F
F
F
F
F
F
F
F
FF
FF
F
F
F
Cal
5
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
FF
Channel
F
F
F
F
FF
FF
F
F
F
F
F
F
F
F
,
4
Meas
F
F
F
F
F
F
F
F
F
FF
F
F
F
F
F
Cal
ey Path
F
FF
FF
FF
F
F
F
F
F
F
F
F
F
FF
FF
F
F
F
F
Plug-in
FF
FF
F
F
F
F
FF
FF
0
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
eye
F
F
F
F
FF
F
F
ratio
Setup
F
F
F
F
F
FF
FF
Setup
5
F
F
F
F
F
F
F
F
F
5
FF
F
5
F
3-8
T
able
3-3.
Miscellaneous
User
Calibration
User Calibrations|Optical
Summary
Calibration
and Electrical
Overview
Calibration What
Probe
Probe
calibration
Channel
Skew
Calibrates
dierences
between channels.
for
looking
dierences
channels
External
Scale
Compensates
loss associated
external
(calibrates
to
external
is calibrated
Attenuation
out
the
in
dela
at
timing
between
for
devices
vertical
device)
O/E
small
y
Useful
gain
with
scale
Measurements
Channels
An
y
electrical
taken
with
Channels
electrical.
measurements, such
Dierential
Channels
or
electrical. An
taken
through
device
transducer)
User-W
Aected
aected: electrical.
measurement
the
probe
aected:
optical
Multiple
channel
as
TDR
aected:
optical
y measurement
an
external
(component
or
avelength
Recommended
Whenever
connected
Before
&
multiple
measurements
measuring timing
between
Whenever
&
devices (component
transducer)
Calibration
a probe
when
channels.
using
Interval
is
channel
dierences
external
or
4
Electrical
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
Calibrate
F
F
F
F
F
F
F
F
F
F
FF
FF
FF
F
Calibrate
4
Channel
F
FF
FF
F
F
F
F
F
F
F
F
F
F
F
F
Calibrate
F
F
F
F
F
F
F
F
F
F
F
F
F
Skew
4
Channel
F
FF
F
F
F
F
F
F
F
F
F
F
F
F
F
F
External
K
ey Path
Channel
F
F
F
FF
FF
FF
F
F
F
F
F
F
F
F
F
Setup
F
F
F
F
F
FF
FF
Setup
F
F
F
F
F
FF
FF
F
F
F
F
F
F
F
F
F
probe
5
5
FF
F
F
F
F
F
F
F
Scale
FF
F
F
FF
FF
F
F
F
F
Setup
F
F
F
F
5
This
optional
only
.
It
compensates
accuracy
on
should
measured.
source
proper
be
with
of
O/E
performed
T
specications
optical/electrical
for
all
optical
user
channel
wavelength
annually
o
perform
a
known optical
for
the
a
plug-in
(O/E)
calibration
the
photodetector's
user
wavelength
calibration.
or
whenever
O/E user-wavelength
output power
module
for
level is
the
is
for
responsivity
measurements
O/E
user-wavelength
a
new
wavelength
calibration, a
required. Refer
acceptable
optical
.
power
measurements
The
vertical
is
dependent
calibrations
is
being
CW optical
to the
level
ranges
.
3-9
T
o
perform
an
user-wavelength
calibration
O/E
Calibration
Overview
User Calibrations|Optical
N
O
T
E
The
optical
channel
calibration
optical
source
power
.
F
or
such
as
the
HP
8153A
and
procedures
1.
Press
2.
Press
3.
Input the
are
essential
the
plug-in
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
Calibrate
correct wavelength,
and Electrical
accurac
best
results,
use
precision
to
obtaining
module's
NN
,
and
then
y
is
heavily
measure
the
optical
an
accurate
front-panel
4
O/E
cal
and
dependent
optical
connectors.
calibration.
optical
5
.
follow
on
the
source
In
addition,
channel
the
instructions
accurac
power
y
with
proper
4
to
which
an
optical
connector
SETUP
on
you
know the
power meter
cleaning
5
key
the
screen.
.
3-10
Figure 3-2. Plug-in calibration menu
Calibration
User Calibrations|Optical
Overview
and Electrical
T
o
use
an
O/E
user-wavelength
calibration
1.
Press the
N
NN
NN
N
N
N
2.
Press
3.
Press
Plug-in
The
plug-in
N
Bandwidth/wavelength
N
N
N
N
N
N
N
N
N
Usr
Module
module
measurements
a
specic
calibration
was
A
plug-in
The
The
plug-in
factors
calibrated.
vertical
mainframe
plug-in
mainframe
The
instrument's
than
C
5
from
performed.
plug-in module's
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
wavelength
and
V
ertical Calibration
vertical
.
It
allows
when
The
are
plug-in
the
the
valid
calibration
has
cycled
has
been
repaired,
.
operating
the
temperature
front-panel optical
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
and then
N
N
N
N
N
N
N
N
N
N
N
N
N
Enter
then
calibration
instrument
plug-in
only
for
vertical
should
power
is
to
is
installed
the
specic
calibration
be
done
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reprogrammed,
temperature
at
which
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Wavelength
N
N
N
N
.
for
both
establish
in
establishes
if:
has
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channel
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N
N
N
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optical
the
calibration
the
mainframe
mainframe
or
removed
and
calibration was
4
SETUP
NN
N
N
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and
slot
vertical
remains
5
key.
electrical
factors
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in
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accuracy
from
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for
plug-in
it
.
more
T
o
view
the
temperature
change
T
o
obtain
vertical
the
the
best
calibration
temperature
measurement
be
has
changed
calibration.
This
procedure
undergone
1.
Press
2.
Press
the
N
displays
since
the last
front-panel
NNNNNNNNN
NNNNNNNNNNNNNNNNNNN
Calibrate
The current plug-in 1T
results
,
it is
recommended that
performed
the
Plug-in V
channel
and then
after
every
10 hours
by
greater
than
2
temperature change
ertical Calibration.
5
key
4
NNNNNNNNN
N
Cal
SETUP
NNNNNNNNNNNNNNNNNNNNNN
status
.
on
emp value is listed for each
C
from
the
that the
instrument has
.
installed module
of continuous
a
user
previous
use or
vertical
.
if
3-11
T
o
perform
module
vertical
calibration
a
plug-in
Calibration
User Calibrations|Optical
1.
2.
3.
4.
5.
6.
No
Reference
electrical
the
O/E
calibration.
Overview
Remove any
Cover
Press
4
Select the
N
Press
F
ollow
additional
electrical channel
calibration has
front-panel connections
the
optical inputs
N
N
N
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5
,
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y
plug-in
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N
N
N
N
N
N
N
N
N
N
N
N
N
N
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the
channels
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cal
on-screen
equipment
signals
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NN
NN
NN
NN
N
are
.
been lost.
and Electrical
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N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
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module
N
N
N
to
start
instructions.
is
both
generated
If
you
are
during
for the
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N
N
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NN
NN
N
N
N
N
N
N
N
.
.
to
be
the
calibration.
required
prompted
an
optical
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from electrical
optical channels
N
N
N
N
N
,
and then
calibrated,
to
perform
and
to
vertical
module
N
Calibrate
press
routed
connect
must
channels.
.
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
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N
N
N
N
N
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N
N
N
N
N
N
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N
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a plug-in
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calibrator
calibration,
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N
N
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N
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N
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plug-in.
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N
N
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or
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optical
output
the
to
N
N
N
N
N
N
N
N
NN
2
vertical calibration.
,
for
then
..
N
N
N
N
N
N
N
N
N
N
factory
HP
N
N
4
to
for
N
N
N
NN
and
.
.
Oset
The oset
channel for
error
the
removed
than
the
P
erforming
complete
measurement
calibration between module vertical calibrations
calibration if the vertical scale or oset changes
3-12
on
the
plug-in
6
5
plug-in
Zero
zero
optical
optical
module
or
reinstalled
C.
In
order
vertical
an
oset
vertical
uncertainty
Calibration
calibration
measurements
vertical
calibration.
calibration.
channel
and
to
ensure
zero
calibration
is
performs
calibrations
the
a
quick
.
Since
the
is
oset
drift,
this
if
the
operating
that
F
or
critical measurements
important
temperature
instrument
is
much faster
to
consider
oset
primary
plug-in
calibration
source
function
module
has
specications
than performing
,
perform
.P
erform an oset zero
.
on
of
is
useful
has
not
are
where oset
an
the
optical
calibration
between
not
been
changed
met,
perform
a
oset
zero
more
T
o
initiate
calibration
an
oset
1.
Disconnect all
2.
Cover
inputs from
all
optical inputs
the module
.
User Calibrations|Optical
being calibrated.
Calibration
and Electrical
Overview
3.
4.
Press
Press
the
plug-in module's
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
Calibrate
NN
N
and then
Figure
front-panel optical
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
Offset
3-3.
Oset
zero
Z
ero
N
.
Calibration
channel
4
SETUP
5
key
.
3-13
Calibration
User Calibrations|Optical
Dark Calibration
Overview
and Electrical
T
o
initiate
calibration
a
dark
The dark
if an
channel oset
information in
should be
Before
After
If
If
If
the
If
the
oset
the
softkey
1.
Press
to
2.
Press
beneath
3.
Press
calibration is
external O/E
done for
any critical
a
plug-in
a
module
the
mainframe
extinction
oset
has
line
power
zero
calibration
time
required
is
located
the
N
N
N
N
N
N
N
N
on
.
Color
grade
measurement
(amplitude
perform
the
the
N
NN
NN
NN
N
N
Extinction
for optical
is being
signal when
performing extinction
the
vertical
has
been
power
ratio
measurements are
changed.
has
for
within
5
4
Displa
y
must
and
when
a
Dark
blue
shift
display
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
used. This
there isn't
following
extinction
calibration
removed
has
been
cycled, the
or
plug-in
the dark
the
Extinction
key
.
Press
be
enabled
a
Dark
there
is
calibration.
key
,
and then
.
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
ratio ...
been
calibration to
NN
NN
measurements
calibration
any light
ratio
conditions:
ratio
measurements
cycled
being made
dark calibration
vertical
ratio
N
N
N
N
N
N
N
N
N
N
N
N
Color
the
to
perform
calibration.
no
signal
the
NN
NN
N
N
N
N
N
and then
,
or
electrical
measures
present
measurements
are
after the
calibration as
complete
menu.
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
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grade
In
present) must
N
N
N
N
N
N
N
N
N
Meas
softkey
an
extinction ratio
addition,
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
eye
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
Dark
cal
the
and
then
.
Dark
made
vertical
invokes
needed. This
N
N
N
N
N
N
The
the
be on
N
N
N
N
NN
Dark
,
and
dark level
which
.
the screen
.
softkey
N
N
N
measurements
optical
uses
this
calibrations
scale
or
either
the
increases
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
cal
set
its
setting
to
is
located
Disconnect all inputs from
any ambient light to the
instructions on the screen.
3-14
photodetector with a connector plug. F
the module
, including the trigger signal, and block
ollow the
Figure
3-4.
Dark
User Calibrations|Optical
calibration
menu
Calibration
and Electrical
Overview
Channel
This
calibration aects
calibration
skew
calibration
compensate
to
place
power
use
for
dierence
rather
changes
the
splitter
skew
.
If
than
Skew
has
for
the
trigger
connected
is
when
you
the
actual
Calibration
both
the
horizontal
a
range
dierences
edge
at
the
between
you
are
are
interested
timing
optical
and
position
of
approximately
in
cable
center
the
comparing
in comparing
dierence
of
channel
waveform on top of the other waveform.
electrical
of
a
or
probe
the
display
two
waveforms
,
you
can
measurements
waveform
100
s
.
Y
lengths
when
and
trigger
the shapes
use
skew
on
ou
.
It
inputs
that
of two
the
can
also
you
have
to
overlay
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The
skew
display
use skew
allows
are
using
.
Another
a
timing
waveforms
one
.
to
you
a
3-15
The
T
o
skew
two
channels
Calibration
Overview
User Calibrations|Optical
1. Turn
2.
both channels
Expand
the
time base
and Electrical
on and
overlay the
so that
the rising
signals
edges
vertically
are
at
about
.
angle
a
45
.
3.
Press
the
N
4.
5.
Probe
Probe
such
power
scale
not
F
or
vertical
NN
Calibrate
Press
A
djust
the
50%
Calibration
calibration
as
the
connector
factors
performed.
passive
scale
calibration
probes
those
The
that
factors
analyzer
attenuation
internally
plug-in module's
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
the
skew
on
points
.
applies
HP
54701A,
,
the
to
the
probe's
probes
allows
are
factors
the
connected
to
the
or
only
calibration of
calibrates to
to
the
actual
routed
to
the
front-panel channel
N
NN
NN
N
of
to
electrical
Skew
the
channels
the
automatically
and then
one
which
instrument
nominal
non-identied
if
a
probe
instrument
to a
channel of
the tip
attenuation ratio
probe tip
N
N
N
N
N
N
N
N
.
so
measurements
instrument
attenuation,
probes
,
the
calibration
to
establish
the
that channel.
of the
probe by
of the
for HP
active probes
4
SETUP
that
the rising
only
can
identify
adjusts
even
the
if
instrument
is
performed.
the
gain
and
instrument,
setting
probe.
.
5
key
.
edges overlap
.
F
or
active
probes
through
channel
a
probe calibration
adjusts
the
vertical
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Probe
oset
of
specic
and
then
apply
the
probe
The
CAL
signal
at
probe
is
is
The mainframe's
instrument compensate
the instrument
calibrates
to
CAL signal
calibrate to
the
tip
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for the
the
is
the tip
probe
a
voltage
actual
of the
,
sets
source
,
therefore
characteristics
probe
.
The
the
probe
attenuation,
for any probe oset.
If you do not perform a probe calibration but want
to use a passive probe
enter the attenuation factor using the following steps:
1. Press the plug-in module's front-panel channel
4
SETUP
3-16
you
of
your
probe
instrument
and
5
key.
can
let
the
by
letting
automatically
compensates
,
T
o
calibrate
identiable
an
HP
probe
2.
Press
Y
ou
or
cable
probe
1.
Press
2.
Press
can
use
or
assemblies
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NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
External
the
probe
the
cable input.
the
plug-in
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Calibrate
N
NN
NN
NN
NN
NN
NN
scale
calibration
.
The
module's
N
N
N
N
NN
N
and
NN
N
N
N
N
N
N
N
and
then
to calibrate
instrument
front-panel-channel
NN
NN
NN
NN
N
Calibrate Probe
then
User Calibrations|Optical
N
NN
NN
NN
NN
NN
N
N
N
N
N
Attenuation
calibrates
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
.
any network,
the voltage
4
SETUP
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
.
Calibration
and Electrical
including probes
at the
5
key
tip of
.
Overview
the
T
o
calibrate
a
non-identiable
probe
1.
Connect
2.
Attach
drive
.
3.
Press
the
4.
If
the
N
Press
probe
instrument
vertical
scale
standard
100.
the
voltage probe
the
probe
plug-in
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
Calibrate
being
calibrated
to
adjust
factors
attenuation
tip
to
module's
N
N
N
N
N
and
the
,
the
factors
to the
the
CAL
front-panel
N
N
N
N
N
Calibrate
then
has
an
gain
(in
hardware)
instrument
such
plug-in.
hook
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
attenuation
will
as
divide
that
channel
N
N
N
N
N
N
N
N
N
NN
NN
probe
to
do
so
by
is
located
4
SETUP
NN
NN
N
N
N
N
N
N
N
N
factor
produce
.
Typically
10,
divide
near
the
oppy
5
key
.
disk
.
that
even
,
by
allows
probes
steps
20,
or
the
in
the
have
divide
by
Figure 3-5. Electrical Channel Calibrate Menu
3-17
T
o
calibrate
devices
other
Calibration
User Calibrations|Optical
The
measurements
it
Ampere
to
not
that
Overview
information in
cannot
compensate
be
,
W
att, or
know the
came with
this section
.
Since
used to
Unknown. Instead,
for
the actual
actual characteristics
the probe
and Electrical
applies to
the mainframe's
calibrate to
the probe
characteristics of
or device
CAL signal
set the
,you
.
both optical
tip
when
external
the probe
can
refer
is a
to
and
voltage
the
gain
the
electrical
units
and
or
device
typical
source
,
are
set
to
external
.
If
you
specications
oset
do
1.
Press the
N
NN
N
2.
Press
3.
Press
(V
4.
Press
device
5.
Press
device
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allows
not
associated
out
the
reading
actual
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N
N
Atten
olt,
W
N
N
Ext
.
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Ext
.
optical
the
eects
on
device
N
N
N
N
NN
N
N
att,
N
N
plug-in module's
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
scale
N
N
N
N
N
N
N
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
units
or
Unknown).
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
gain
,
and
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
electrical
to
enter
the
test.
N
,
offset
Scale
and
user
with
of devices
the
display gives
under
front-panel channel
N
N
N
N
N
N
N
N
.
N
N
N
N
N
N
N
N
N
N
N
Attenuation
,
Ratio
enter
the
and
enter
the
channels
in
an
oset
device
under
such as
test xtures
the measurement
N
N
N
NN
NN
N
N
N
actual
oset
have
value
test.
N
N
N
N
N
N
N
N
N
N
N
N
N
N
1:1,and
gain
characteristics
introduced
an
External
to compensate
This
feature
and
value associated
5
then
by
scale
is
key.
the
setting
for gains
useful
4
SETUP
attenuators
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
Units
of
the
probe
which
or losses
for adjusting
so
that
with only
Ampere
probe or
or
the
the
T
o
adjust
scale
the
external
1.
2.
3.
3-18
Press
the
NNNNNNNNNNNNNNN
N
Press
External scale
NNNNNNNNNNNNNNNNNNNNNNNNN
Press
Attenuation
plug-in
NNNNNNNNNNNNNNNNNNNNNNNNN
module's
NNNNNNNNNN
front-panel
NNN
, and set the
, and enter the appropriate values
channel
NNNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNN
N
Atten units
4
SETUP
5
key
.
to \decibel".
.
Figure
3-6.
External
User Calibrations|Optical
Scale
Menu
Calibration
and Electrical
Overview
3-19
Complete
T
able 3-4.
Calibration
Complete Calibration
Summary
Summary
Calibration What
Mainframe
Calibration
O/E
F
actory
W
avelength
Calibration
O/E
User
W
avelength
Calibration
Plug-in
V
ertical
Calibration
1
Refer
to
\O/E
Accurac
of
the
The
responsivity
The
responsivity
V
ertical
scale
electrical
channels.
User-W
is
calibrated
y
and
continuity
timescale
photodetector
photodetector
oset and
accurac
y
for
and
optical
avelength
Calibration
vertical
both
"
in
Measurements
Channels
aected:
electrical.
measurements such
time
and
Channels
Amplitude
optical
Optical
Channels
optical
at user
Channels
electrical.
electrical
measurements
V
extinction
optical
this
p
chapter
,
to p
All
fall
time
jitter
.
aected:
accurac
channel
power
aected:
channel
wavelengths.
aected:
An
vertical
,
e
ratio
power
.
y
ye
Aected
optical
time
base
as rise
,
e
ye
width,
optical.
y
of
all
measurements.
meter
accurac
optical.
measurements
optical &
optical
or
such as
height,
,and
the
meter
&
y
.
All
Recommended
Annually
at
or
if
operating
changed and
more
from
temperature
manual.
Annual
factory
of
standard
Annual
re-calibration
dened
non-factory
wavelengths
P
erform
after an
or
once
every
during
continuous
operating
changes
temperature
b
y
Interval
HP
service
temp
remains 5
calibration
.
See
service
re-calibration
wavelengths.
y
power
10
hours
use
more
than
has
of
center
Cor
user
or
2
c
ycle
if
C
.
4
5
Utility
F
FF
FF
FF
FF
F
F
F
F
F
F
F
F
Calibrate
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
Calibrate
Not
user
accessible
4
Optical
F
F
F
F
FF
FF
F
F
F
F
F
F
F
F
F
Calibrate
F
F
F
F
F
F
F
F
F
F
F
FF
F
F
F
F
O/E
Cal
4
5
Utility
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
Calibrate
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
Calibrate
K
ey
Path
F
F
F
F
F
F
F
F
F
FF
FF
FF
F
F
F
F
F
F
F
frame
1
.
Channel
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
F
F
F
F
F
FF
F
F
F
F
F
F
F
F
F
F
F
F
Plug-in
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
Setup
F
F
F
F
F
F
F
5
FF
F
F
F
F
3-20
T
able
3-4.
Complete
Calibration
Summary
(continued)
Calibration
Overview
Calibration What
Oset
Calibration
Dark
Calibration
Probe
calibration
Channel
Zero
Skew
V
ertical
for
the
only
.
doesn't
scale
Dark
the
without an
and
the
algorithm.
Probe
Calibrates
dierences
between
for
looking
dierences
channels
is calibrated
oset
optical
This
calibration
include vertical
accurac
y
calibration
channel
oset
y light
this
value
extinction
Attenuation
out
in
channels. Useful
at
between
is calibrated
channel
.
measures
signal
present
is
used
ratio
the
small
dela
y
timing
Measurements
Channels
An
measurements
V
pto
extinction
Channels
electrical.
in
Channels
An
taken
Channels
electrical.
measurements,
Dierential
y
optical
y
electrical
p
with
,
aected:
vertical
including:
eye
height, and
ratio
.
aected:
Extinction
aected:
measurement
the
probe
aected:
Multiple
such as
TDR
Aected
optical.
optical
ratio
.
electrical.
optical
channel
P
calibration
published
Because
calibration
oset
vertical
only
non-critical
Before
&
measurements
scale or
since
or
calibration is
Whenever
connected
Before
&
measurements
measuring
between
Recommended
erform
a
plug-in vertical
in
specications.
the oset
performs
portion
calibration, it
be
used
measurements.
extinction
oset has
the
last
after
a
plug-in
a
probe
multiple
timing dierences
channels.
Interval
order
to
zero
only
of
the
before
fast
ratio
if
the
changed
dark
calibration
vertical
performed.
is
channel
when
meet
plug-in
should
vertical
the
4
Optical
F
F
4
Shift
F
F
4
Electrical
F
F
4
Channel
F
F
K
ey Path
F
Calibrate
F
Offset
F
Extinction
F
Dark
FF
Calibrate
F
Calibrate
F
Calibrate
F
Skew
Channel
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
FF
F
F
F
F
F
F
F
F
FF
FF
FF
F
F
F
F
F
F
F
F
0
5
,
4
Meas
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
FF
F
Cal
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
Channel
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
Setup
FF
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
F
FF
eye
F
F
F
F
F
F
F
F
F
F
F
F
F
probe
F
F
Setup
5
F
F
F
F
F
F
F
F
F
ratio
F
F
F
F
F
F
F
F
F
5
F
F
F
F
F
F
Setup
F
F
F
F
5
F
5
External Scale Compensates for
loss
associated
external
devices
(calibrates vertical
to
external
device)
gain or
with
scale
Channels aected:
electrical.
taken
device (component
transducer)
An
y
through an
measurement
optical &
external
or
Whenever using
devices
(component
transducer)
external
or
4
Channel
F
F
F
F
F
F
F
F
F
F
F
F
External
F
F
F
FF
FF
FF
Setup
F
F
F
F
F
F
F
F
Scale
5
F
F
F
F
F
F
F
F
F
F
F
FF
F
3-21
Calibration
Overview
4
Specications
Regulatory Information
and
Specications
This
chapter lists
83485A/B
either
optical/electrical plug-in
the HP
characteristics
Guide
. Specications
C
(unless otherwise
stabilized
In
addition,
after 60
the system
83480A or
for the
minutes
you'll
nd
mainframe are
apply over
noted)
a
and Regulatory
specications
HP 54750A
module when
mainframes
in the
and
characteristics
it
.
The
HP
83480A,
the temperature
after
the
instrument's
of
continuous
declaration
operation.
relating
to
regulatory
Information
of
the
is
combined
with
specications
54750A
range
+15
temperature
User's
C
to +35
has
information.
HP
and
been
Specications
Characteristics
Calibration
cycle
Specications
corrected
with
error-correction
described
limits are
given
Characteristics provide
and
performance
HP
designs
calibration
specied
operating
recalibrations
calibrated
adjust
or
measurement
at an
the
calibration
of
the
instruments
interval
provided
environment.
are necessary
HP
service
accuracy
warranted
when
routines
performance
specications
.
useful, nonwarranted,
instrument.
to
meet specications
that
.
W
facility
cycle
based
needs
Characteristics
the
instrument
T
o
maintain
e
recommend
every
on
their
.
.
are
information
over
specications
that
12
months
particular
Unless
subject
are
the
is
operated
the
plug-in
.
Users
operating
otherwise
to
about
printed
noted,
minimization
the
in
italics
recommended
within
,
periodic
module
are
encouraged
environment
functions
.
the
be
to
4-2
Bandwidth
dc
Accurac
12.4
GHz
20
GHz
dc
Dierence|two
12.4
GHz
20
GHz
(
0
3dB)
y|single
bandwidth
Specications
The
following are
Specications
A
ctive Probe
V
on electrical
1
marker
marker
accurac
ertical
or optical
y
Service Guide
specications
HP
83485A
channel
on
same
specications used
are valid
after a
Electrical
dc
to
12.4
6
0.4%
6
2
mV
6
(2%/
6
0.4%
6
2
mV
6
(2%/
1
channel
6
0.8%
6
1.5%
6
(2%/
6
0.8% of
6
3%
of
6
(2%/
1
hour
for complete
Channel
of full
6
C)
of
6
C)
of
of
C)
delta
C)
or 20
1.5%
(1T
full
3%
(1T
full
delta
(1T
full
(1T
GHz, user
scale
(reading
2
cal
scale
(reading
2
cal
scale
marker
2
cal
scale
marker
2
cal
V
to
ertical
0
)
(reading)
0
)
(reading)
reading
)
(reading)
reading
)
(reading)
warm-up
test
the
probe
Specications
selectable
channel
oset)
0
0.4%/hr
channel
oset)
0
0.4%/hr
0
0.4%/hr
0
0.4%/hr
HP
83485A/B
period.
See
specications
3
)
3
)
3
)
3
)
(reading)
(reading)
(reading)
(reading)
(1Time
(1Time
(1Time
(1Time
plug-in
the
.
HP
module
54701A
.
1
It
is
2
from
Where
recommended
the
1T
that
previous vertical
represents
cal
a
user
calibration.
the
vertical
temperature
calibration
change
be
in
performed
Celsius
from
after
the
every
last
user
10
hours
of
vertical
continuous
calibration.
use
Note
or if
the temperature
that
the
temperature
has changed
term
goes
by
to
zero
execution of a vertical calibration.
3
Where 1Time represents the time since the last user vertical calibration. The uncertainty due to time typically stabilizes after 24 hours. This term g
zero upon execution of a vertical calibration.
greater
upon
than
oes
2
to
4-3
C
Specications
and
Regulatory
Information
Specications
HP
83485A
T
ransition
Time
calculated
12.4
20
GHz
Maximum
12.4
20
GHz
Scale
Factor
(10%{90%)
from T=0.35/B
GHz
RMS Noise
GHz
characteristic
W
,
electrical
Minimum 1
,
Electrical
Channel
28.2
17.5
0.5
1.0
full
scale is
mV/div
Maximum 100
dc
Oset
Range
Nominal Input
Impedance
6
500
50
Connectors 3.5mm
Input
Reection/Return L
Number
of
Dynamic
Range/Maximum
Maximum
Channels
Safe
Input
oss
Specied
Input
P
ower
1
6
6
5% for
400
2V
ps
ps
mV
mV
mV/div
mV
(m),
mV
+
V
ertical
(0.25
mV
(0.5 mV
eight divisions
channel
30 ps
relative
peak
ac
Specications
typical)
typical)
and
trigger
rise
time
to
channel
(+16 dBm)
(continued)
oset
4-4
HP
Bandwidth
dc
Accurac
12.4
(
0
y|single
GHz,
3
dB)
ltered
on
marker
2
electrical
1
or
optical
83485A
channel
Optical
dc
6
6
6
2
20
GHz
6
6
6
dc
Dierence|two marker
12.4
GHz,
ltered
accurac
y
on
same
2
channel
1
6
6
2
20
GHz
6
6
T
ransition
Time
calculated
12.4
20
GHz
S
TM-16/OC-48
S
TM-4/OC-12
S
TM-1/OC-3
Maximum
12.4
20
Scale
F
GHz
GHz
actor
RMS
GHz,
(10%{90%)
from
lter
lter
lter
Noise
ltered
T=0.48/B
characteristic
W
,
optical
,
40
25
190
750
3
12
25
full
Minimum 20
Maximum 500
dc
Oset
Range
+1
Connectors User
Input Reection/Return
Loss
>
Channel
to
12.4
25
W
2%
(reading
C)
(2%/
25
W
4%
(reading
(2%/C) (1T
2%
of
delta
C)
(2%/
4%
of
delta
C)
(2%/
ps
ps
ps
ps
ns
W
(8
W(15
scale
is
W/div
W/div
to
0
3
below
center
selected
33
dB for
V
ertical
or
20
GHz
(user
0
channel
3
)
(1T
(1T
(1T
eight
mW
W
cal
0
channel oset)
3
cal
reading
3
cal
reading
3
cal
typical)
W
typical)
divisions
(referenced
(reading)
) (reading)
)
(reading)
)
(reading)
screen)
option,
9/125
HMS-10/HP interface
Specications
selectable)
oset)
0
0.4%/hr
0
0.4%/hr
0
0.4%/hr
0
0.4%/hr
two
divisions
m
single mode
connector
Specications
(1Time
(1Time
(1Time
(1Time
ber
and
4
)
(reading)
4
) (reading)
4
)
(reading)
4
)
(reading)
Regulatory
Specications
Information
1
It is recommended that a user vertical
from the previous vertical calibration.
2
Referenced to average power
3
Where 1T
represents the temperature change in Celsius from the last user vertical calibration. Note that the temperature term goes to zero
cal
meter.
execution of a vertical calibration.
4
Where 1Time represents the time since
zero upon execution of a vertical calibration.
calibration be performed after every 10 hours of continuous use or if the temperature has changed b
y greater than 2
upon
the last user vertical calibration. The uncertainty due to time typically stabilizes after 24 hours. This term goes to
4-5
C
Specications
Specications
HP
83485A
and
Regulatory
Optical
Information
Channel
V
ertical
Specications
(continued)
Filtered
Response
Calibrated
A
verage
power
Specied
Factory
User
Calibrated
Number
of
Dynamic
Maximum
Wavelength
1
A
user
calibration
vaild
for
W
avelengths
Monitor
Operating Range
Calibrated Accurac
Accurac
Channels
Range/Maximum
Safe
Input
Range
can
average
be
optical
y
(20
1
<
y
Specied
performed
calibration
5
C{30C)
C
temp
Input
with
powers
change
P
ower
average
form
optical
500
Measured
ITU-TS
for
or
or
1310
0
6
6
1
2
10
1200{1600 nm
power
to
2000
response
G.957 and
STM-16,
STM-4,
STM-1, OC-3
nm
and
30 dBm
5%
of reading
2%
of
reading
mW
mW
peak
levels
from
W
.
conforms
GR-253-CORE
OC-48 (Option
OC-12
(Option
(Option
1550
nm
to +3
dBm (1
6
100
6
100
100
to
2000
032)
030)
nW
nW
034)
W
6
6
W,
to
to
connector
power
however,
2
mW)
uncertainty
meter
accurac
y
the
instrument
optical
accurac
y
specication
is
only
4-6
HP
83485B
Electrical
Channel
V
ertical
Specications
Specications
and
Regulatory
Specications
Information
Bandwidth
dc
Accuracy|single
18 GHz
(
0
3
dB)
voltage marker
1
dc
6
6
6
40
GHz
6
6
6
T
ransition
Time
T=0.35/bandwidth)
Maximum
Scale F
18
40
RMS
GHz
GHz
actor (full
(10%
Noise
scale
to
90%,
calculated
is
eight
divisions)
from
1.0
Minimum 1
Maximum 100
dc
Oset
Range
6
Inputs:
Dynamic
Maximum
Nominal
Reections
Range
Safe
Input
Impedance
V
oltage
6
16
50
Connector 2.4mm
to
40
0.4%
2
mV
(2%/
0.4% of
2
mV
(2%/
9
ps
19.5
0.5 mV
mV
mV/div
mV/div
500
mV
400
mV
dBm
5%
for
(40
ps
(m)
GHz,
of
6
C)
6
C)
(0.5
peak
20
or
full
scale
1.5%
(1T
cal
full scale
3%
(reading
(1T
cal
GHz
B
(18
GHz
(0.25 mV
mV
typical)
relative
ac
ps
rise
dc
to
(reading
2
)
(reading)
)
(reading)
W)
B
W)
typical)
to
channel oset
6
2V
dc
time
18
0
GHz
0
channel
channel
(user
selectable)
oset)
oset)
2
1
It
is recommended
from
2
Where 1T
execution of
the
previous
cal
a vertical
that a
vertical
represents
user vertical
calibration.
the temperature
calibration.
calibration
change
be
in
performed
Celsius
from
after
the
every
last
user
10
hours
of
vertical
continuous
calibration.
use
Note
or
if
the
that
temperature
the
temperature
has
term
changed
goes
b
y
greater
to
zero
upon
than 2
C
4-7
Specications
Specications
HP
and
83485B
Regulatory
Optical
Information
Channel
V
ertical
Specications
Bandwidth
dc
dc
T
ransition Time
Maximum
Scale
Accurac
(Optical
average
Dierence
(two
marker accurac
referenced
calculated
F
actor
(
0
3
dB)
1
y
channel
referenced
power
meter)
1
to
average power
(10% to
from
T=0.48/bandwidth,
RMS Noise
(full
scale
y,
is
same
90%)
eight
to
channel,
monitor)
characteristic
optical
divisions)
,
Minimum 20
dc
to
6
50
6
(2%/C) (1T
6
4%
6
(2%/
<
16 ps
<
30
Maximum 500
dc
Oset
Connector
Input
Return
Range
Type
L
oss
+1
to
9/125
30
two
dB
Filtered Bandwidth Fourth
3
dB
Calibrated
Average
Specied
F
actory
W
avelengths
P
ower
Operating
Calibrated
Monitor
Accurac
Range
C
C)
to
(20
30
y
1310
0
6
27
5%
connector
User
Maximum
Maximum
W
a
v
elength
Calibrated
Specied
Safe
Range
Accurac
Input
Input
y(
P
<
ower
C
temp
5
change)
6
2
10
1000
2%
mW
mW
30
GHz
W
of
delta
C)
W
W/div
W/div
mW
to
divisions
m
(HMS-10/HP
or
fth
frequenc
nm
and
dBm
of
reading
of
reading
peak
to
1600
6
4%
of (reading
cal
reading
(1T
cal
(
<
15
0
3
mW
above
single mode
order
y
7.465
1550
to
+3
dBm
6
uncertainty
6
nm
0
2
) (reading)
2
)
(reading)
W
typical)
,
referenced
bottom
,
user
connector)
Bessel-Thomson
GHz
nm
(2
W
100 nW
6
100 nW
6
channel
of
screen
selectable
to
2
mW)
power-meter
oset)
connector
lter
,
option
uncertainty
1
It
is
recommended that
from
2
Where
the
previous
1T
cal
a user
vertical
represents
execution of a vertical calibration.
vertical calibration
calibration.
the
temperature
4-8
change
be performed
in
Celsius
from
after
the
every
last
user
10
hours
vertical
of
continuous
calibration.
use
Note
or
if
the
that
temperature
the
temperature
has
term
changed
goes
b
y
greater
to
zero
upon
than
C
2
Environmental specications
Specications
and
Regulatory
Specications
Information
Electrical and
T
emperature
Operating 15Cto
Non-operating
Optical Channels
+35
0
C
40
to
Humidity
Operating up
Non-operating up
P
ower Requirements
Supplied
b
y
mainframe
.
to
90%
to
95%
Weight
Net approximately
Shipping approximately
C
C
+70
relative
humidity (non-condensing)
relative
humidity
1.2
kg
(2.6
2.1
kg
(4.6
(non-condensing)
lb
.)
lb
.)
C
at
35
C
at
65
4-9
Characteristics
The
following characteristics
plug-in
probe
module.
See the
characteristics.
HP
54701A
are typical
A
for
ctive
the
Probe
HP
83485A/B
Service
optical/electrical
Guide
for
complete
Trigger
Nominal
Impedance
Input
Connector
T
rigger
L
e
vel
Maximum
P
Refer
ercent
Safe
Reection
to
the
input
Range
Input
HP
characteristics
Electrical
V
oltage
83480A,
54750A
and
Optical
User's
50
3.5
mm
6
1
V
6
2
Vdc
10%
Guide
Channels
(m)
+
ac
peak
for 100
for
(+16
ps
rise
trigger
dBm)
time
specications
.
4-10
Declaration
of
Conformity
4-11
Specications
and
Regulatory
Information
5
In
Case
of
Diculty
In
Case of
What
you'll nd
This
chapter
list
of
messages
F
or
complete
in this
provides
that
service
Diculty
chapter
a
list
of
suggestions for
ma
y
be displa
yis
information,
refer
you to
also included.
to the
optional
follow if
the plug-in
HP
83485A/B Service
module
Guide
fails
.
to
operate
.
A
Review
calling
the
Hewlett-P
performing
repaired.
procedure
ackard
some
simple
being
or
checks
performed
returning
may
the
save
when
unit
waiting
the
for
problem
service
for
your
occurred.
,
a
few
instrument
Before
minutes
spent
to
be
5-2
If the
mainframe does
In
Case
of
Diculty
not operate
If
the
mainframe
does
not
operate
Please
If
54750A
make
Is
the line
Does
the line
Is
the unit
Is
the mainframe
Is
the rear-panel
Will
the mainframe
the
mainframe
Service
department.
the
following checks:
fuse good?
socket have
plugged in
turned on?
line switch
power up
still
does
Guide
or
power?
to the
not
return
proper ac
set
to
on?
without
power
the
mainframe
up
power
the
,
refer
source?
plug-in
to
the
to
module
optional
a
qualied
installed?
HP
83480A,
service
5-3
If
the
plug-in
does
not
operate
In
1.
Case
of
Diculty
Make
the
Is
the plug-in
Are
the knurled
Is
a trigger
If
other equipment,
plug-in
following checks:
module rmly
screws at
signal connected
cables,
module are
they connected
seated in
the bottom
to a
the
of
trigger input?
and connectors
properly
mainframe
the
plug-in
are being
and
slot?
module
used
operating
nger-tight?
with
the
correctly?
Review
appeared.
Are
Measurements"
connectors
2.
P
erform
Make
Find
See
4
After
Make
4
Make
o
the procedure
the
connectors
the
following
sure
any
signals
if
any
5
T
rigger
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
Sweep
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
freerun
viewing
sure
5
Channel
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
Display
sure
the
display
Are all
in
.
the
instrument
signals
N
N
N
N
N
N
N
the
Channel
NN
N
N
N
N
N
N
N
N
N
N
N
N
on
the
channel
.
for the
the
settings
clean?
Chapter
procedures:
on
the
are
present
signal,
Display
N
N
N
N
N
NN
NN
NN
NN
off
on
oset
test
See
1
for
is
ready
channel
at
press
is
on
is
being
correct?
\Cleaning
more
information
to
acquire
inputs
the
channel
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
triggered
by
pressing:
adjusted
performed
Can
the
Connections
data
by
pressing
inputs
NN
N
N
N
N
N
N
N
.
so
the
waveform
when
problem
about
by
pressing
4
Autoscale
by
the
problem
be
reproduced?
for
A
ccurate
cleaning
5
.
pressing:
is not
the
N
N
N
N
N
N
N
N
N
N
Run
clipped
N
.
If you are using the plug-in module
only as a trigger source
at least one other channel is turned on.
If all of the channels are turned o, the mainframe will not trigger
5-4
,makesure
.
If the
In
Case
plug-in does
of
Diculty
not operate
Make sure
4
5
Utility
N
N
N
N
N
N
N
N
N
N
N
N
N
N
System
The calibration
the display
plug-in module
mainframe has
If \
~known
If all
module,
\
~known
module
or
of the
remove
"
are
contact
above steps
operate properly
the
optional
qualied
HP 83485A/B
service
the mainframe
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
config...
status of
,in
the box
is listed
identied the
"
is
displayed
and
reinsert
is
still
displayed,
corrupt.
a
qualied
Refer
check out
, then
the problem
department.
identies the
NN
NN
NN
N
N
the
plug-in
labeled
next to
\
Plug-ins
the
plug-in.
instead
of
the
then
the
to
the
service
department.
okay
is beyond
Service Guide
plug-in
modules
appropriate
the
model
plug-in
memory
optional
,
and
the
or
return
is
".
If
number
module
contents
HP
83485A/B
plug-in
the
scope
the
module
listed
the
model
slot
in
the
module
of
plug-in
by
near
number
number
of
the
same
of
the
Service
this
book.
module
pressing:
the
bottom
,
then
plug-in
slot.
plug-in
Guide
still
does
Refer
to
of
the
If
of
the
not
to
a
5-5
Error
Messages
Memory
in
reinstalling
error
plug-in:T
plug-in
occurred
ry
In
Case
of
Diculty
The
following
error
messages
mainframe
This
that
eliminate
is
beyond the
Guide
.
section explains
might help
the error
and
HP
information.
A
dditional error
for
the
mainframe
The
mainframe
plug-in.
1.
Remove
Each
time
module's
2.
V
erify
the
3.
V
erify
the
nger-tight.
4.
Install
the
error
messages are
indicate
what the
resolve the
message,
scope of
this book.
83480A, 54750A
messages
.
could
not
and
reinstall
a
plug-in
memory
plug-in
knurled
plug-in
is
.
module
screws
in
for the
there
is
a problem
messages mean
error condition.
then additional
Service
are
listed
correctly
the
plug-in
installed,
is rmly
at
the bottom
a
dierent
Refer to
Guide
in
the
read
module
the
mainframe
seated
slot
in the
plug-in module
with either
and
oers
If the
suggestions
troubleshooting is
the
optional
for
additional
HP
83480A,
the
contents
.
rereads
in
the
mainframe
of
the
plug-in
mainframe
. Typically
the plug-in
a
few
HP
83485A/B
troubleshooting
54750A
of
the
memory in
the
module
.
,
the
or
the
suggestions
do
not
required
Service
User's
Guide
plug-in
slot.
are
that
the
Busy
timeout
with
plug-in:T
reinstalling
occurred
ry
plug-in
The
mainframe
Make
sure
module
1.
2.
3.
.
Remove
V
erify
V
erify
nger-tight.
4.
Install
5-6
there
the
the
the
is
and
plug-in
knurled
plug-in
having
is
a
good
reinstall
module
screws
in
trouble
connection
the
plug-in
is
at
a
dierent
communicating
between
module
rmly
seated
the
bottom
slot
in
the
with
the mainframe
.
in
the mainframe
of
the plug-in
mainframe
the
plug-in
module are
.
module
and the
slot.
.
plug-in
Communication
exists
at
slot
is
required
failure
:
Service
An
illegal hardware
interface
If
the
HP
If
a plug-in
problem.
of
slot
83480A,
Refer to
is empty
state is
the
specied slot.
, there
54750A
is installed
the optional
detected at
is a
mainframe
Service Guide
in the
slot,
HP 83485A/B
the mainframe
hardware
.
there
is
a
plug-in
Service
to
plug-in
problem.
module
Guide
In
Case
module
Refer
hardware
.
of
Diculty
to
the
ID
error
plug-in :
required
Cal
not
occurred
Service
possible
in
is
The
information
hardware in
problem
a
good
1.
2.
3.
between
connection
Remove
V
erify
V
erify
and
the
the
nger-tight.
4.
The
HP
54750A
optical/electrical
a
rmware
communications
5.
The
HP
83480A,
designed
The
power
is
read
the plug-in
the mainframe
between
reinstall
plug-in
knurled
mainframe
plug-in
upgrade
rmware
54750A
for
use
with
too
low
from
module.
the
module
screws
must
the
to
perform
the plug-in
This can
and the
the
mainframe
plug-in
is
rmly
at
the
bottom
does
not
module
rst
kit
.
be
installed.
and
mainframes
HP
54710A,
a
user
module's memory
be
caused
plug-in
module
seated
accept
T
o
use
and
.
in
of
the
the
the
the
the
optical
module
plug-in
Order
follow
do
the
installation
not
accept
54720A.
O/E
calibration.
does not
by
a
communication
.
Make
plug-in.
mainframe
module are
HP
83485A/B
plug-in
the
HP
83480K
instructions
plug-in modules
match the
sure
slot.
modules
there
,
.
is
5-7
In
Case
of
Diculty
Index
Index
accessories
A
connection
optional,
accuracy
active
attenuation
range,
Attenuation
attenuator
scaling,
Atten
automatic
auxiliary
devices,
1-5
performance, 1-11
probe,
2-7
2-10
softkey,
2-9
units
softkey,
measurement, 2-5
power
connector, 1-10
1-5
2-10
2-9
Bandwidth
B
Bandwidth/W
key,
Bessel-Thomson lter,
C
Calibrate
Calibrate
probe
softkey,
calibration
external
factory,
scale,
3-4
mainframe,
O/E,
2-14,
O/E
converters,
O/E
user
wavelength,
oset
zero, 2-14
overview,
plug-in
module
probe,
3-16
probes, 3-15
skew,
3-15
status, 5-5
user, 3-7
validity, 2-14
vertical, 1-11
voltage probe, 3-16
CAL signal, 2-15
Cal status
softkey, 2-13
channel
2-8
avelength
softkey,
2-11
3-15
3-4
3-6
3-15
,3-12
3-2
vertical
.
.
.
softkey,
1-2
,
2-8
2-15
3-9
calibration,
2-7
3-11
Index-2
display,
electrical,
input, 1-10
optical,
scale,
setup, 2-2
Channel
Channel
Channel key,
characteristics,
cleaning
adapters, 1-16
non-lensed
cleaning
connection
connector
Current
Current
customer
decibel
D
declaration of
description
digital
Display
2-5
1-2
1-2
2-10
1
Calibration
autoscale
2-2
4-10
connectors,
ber-optic
devices,
care,
1-13
Date message,
Frame
1T
assistance,
calculation,
conformity, 4-10
of
the
oset,
2-7
softkey,
2-5
Status
softkey,
1-15
connections,
1-5
2-13
emp
message, 2-13
v
2-9
plug-in
module,
message,
2-9
1-13
1-2
,
2-14
1-15
E
electrical
channel,
environmental
HP
83485A
HP
83485B specications,
trigger
input
weight,
4-9
environmental
error
messages,
extender
external
cables,
scale
External scale
external
input,
level,
trigger
1-10
1-12
Ext gain softkey, 2-11
Ext oset softkey,
1-2
specications
vertical
specications,
characteristics,
specications
5-6
{7
1-12
calibration,
..
.
softkey,
2-11
4-7
3-15
2-9
,
4-9
4-3
4-10
,
4-9
Index-3
factory calibration,
F
ber-optic
cleaning
inspecting, 1-14
front
panel
3-4
cables
connections,
overview,
1-13
1-10
horizontal waveform,
H
index-matching
I
index
matching
input
connector,
2-12
compounds, 1-13
gel,
1-13
1-13
inspecting
cables,
1-14
the
plug-in
conventions,
calibration,
troubleshooting,
value,
2-10
function,
overview,
calibration,
cal
softkey,
converter
user
wavelength
2-5
{7
,
calibration,
2-10
softkey, 2-7
calibration, 3-12
zero
softkey,
channel,
1-6
2-5
1-6
3-6
2-14
,
1-2
module,
3-4
3-15
calibration,
2-14
2-14
,
2-7
5-3
K
M
O
installing
key
mainframe
mainframe
marker
math
menu
O/E
O/E
O/E
O/E
oset,
Oset
oset zero
Oset
optical
environmental specications
HP
83485A
HP
83485B
trigger input
vertical
specications,
specications,
specications,
characteristics, 4-10
4-4
4-7
4-4
weight, 4-9
optical-to-electrical converter scaling, 2-9
optional accessories, 1-5
options, 1-4
ordering information, 1-4
1-11
3-9
,4-9
Index-4
plug-in message,
P
plug-in
description,
features, 1-8
front
installation,
purpose,
specications,
troubleshooting,
weight,
plug-in
power
power
probe
attenuation,
attenuation
characteristics,
power,
power
probe
calibration, 3-15
pulse
parameter
RF
connectors,
R
safety
Scale
information,
softkey,
S
shifted
skew
calibration,
Skew
softkey,
softkey
menu,
overview,
SONET/SDH
specications,
plug-in
2-14
module
1-2
panel,
1-10
1-11
1-8
4-3
4-9
module
vertical
level, 2-7
requirements,
2-10
factor,
2-11
2-7
connector,
measurements,
1-11
2-6
function
keys,
3-15
2-12
1-10
1-6
lter,
4-7
module,
4-3{9
5-4
,
iv,
1-2
{9
4-9
2-15
2-9
1-10
,3-16
1-12
1-6
,
calibration,
2-8
3-11
2-5
technical
T
temperature
assistance,
change, 2-13
trigger
external, 1-12
input characteristics, 4-10
level,
2-10
source, 2-5
troubleshooting, 5-2{7
v
{14
Index-5
Units softkey,
U
user
vertical
V
calibration,
measurement,
scale, 2-5
specications,
waveform,
voltage
measurement,
probe,
voltage probe
2-6
calibrations,
1-11
{6,
2-7
2-15
calibration,
2-9
,
3-7
2-10
4-3
2-10
2-10
3-16
W
warranty
wattage
measurement,
waveform
display,
horizontal,
Wavelength
wavelength
weight
of
information,
2-5
2-12
key, 2-8
settings,
plug-in
module,
vii
2-10
2-7
4-9
Index-6
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