HP
5384A and
HP
5385A
General
Information
1-24. The HP-IB, (Hewlett-Packard Interface
Bus)
is
Hewlett-Packard's
implementation
of
IEEE
Standard
488-1978 and
ANSI Standard
MC
1.1. HP-IB
is
a
high-
speed parallel interface bus.
All
devices
on
the bus are
capable
of
being
addressed
at
one
time.
However,
only
one
device may respond at a time. A
controller
is
used
to
command
which
device responds. (The HP
5384A
or
HP
5385A
with
HP-IB
would
make measure-
ments and
return
data
upon
commands
from
a
controller.)
1-25. The
counter
can
be
configured
for
either
HP-IB
or
HP-IL,
not
both.
1-26. HP-IB
or
HP-IL allows
the
HP
5384A and
HP
5385A
to
output
data
to
other
devices
or,
on
a
more
complex
level, respond
to
remote
programming
in-
structions
to
make a specific
type
of
measurement,
trigger
that
measurement,
then
read
the
result and
send the reading back
to
the
controller,
or
to
another
device
on
the
interface.
1-27. OPTIONS
1-28.
Option
001
is
a Temperature Compensated
Crystal Oscillator
(TCXO)
for
HP
5384A. The TCXO
is
a
10
MHz
oscillator, capable
of
making
minor
fre-
quency
corrections
to
compensate
for
temperature
variations.
1-29.
Option
003
is
HP-IL, (Hewlett-Packard
Inter-
face Loop). HP-IL
is
a
low
cost,
two-wire
serial
inter-
face
that
permits
communications
from
one
device
to
another.
As
the
name implies,
the
HP
5384A
or
HP
5385A
is
connected
in
a serial
loop
structure. Data
or
information,
in
the
form
of
digital messages, travels
from
one
device
to
the
next in
the
loop.
If
the
information
is
not
intended
for
the
counter,
the
counter
merely
passes
the
information
on
to
the
next
device
in
the
loop.
If
the
information
is
intended
for
the
counter,
the
counter
responds
as
directed
by
the
information.
1-30.
Option
004
is
an
ovenized
oscillator
that
gives
the
HP
5384A and
HP
5385A increased accuracy by
providing
a
more
stable
time
base reference signal.
The oven maintains
the
crystal
at
a constant elevated
temperature
for
increased stability
over
the
ambient
temperature
range.
1-31.
Option
005
Battery
Pack
is
a lead acid
type
battery that provides at least 3 hours
of
operation
while
the
counter
is
disconnected
from
the
power
line.
Operation
time
is
reduced
to
approximately
1-hour
when
operated
with
HP-IB.
1-2
NOTE
If
an
instrument
contains
an
Option
005
Battery
Pack
as
well
as
the
ovenized oscillator, the
ovenized oscillator
will
draw
power
from
the
battery pack
if
no
external
ac
or
de
power
is
applied. Power
will
be
drawn
from
the
battery
pack
continuously
with
the
instrument
in
either
ON
or
STBY
(standby) positions.
1-32. The battery pack
will
be recharged in 16 hours
if
the
counter
is
in
the
standby
mode
and
either
the
line
cord
is
attached
or
external de
is
applied
through
the
rear panel jack. The battery
will
trickle
charge
while
the
counter
is
being
used and
is
connected
to
either
an
ac
power
line
or
external de.
1-33. INSTRUMENT IDENTIFICATION
1-34. Hewlett-Packard instruments have a 2-section,
10-character serial
number
(OOOOAOOOOO),
which
is
located on the rear panel. The
four-digit
serial prefix
identifies the instrument changes.
If
the serial prefix
of
your
instrument differs
from
that listed
on
the title page
of
this manual, there are differences between this
manual and
your
instrument. Instruments having
higher serial prefixes are covered with a
"Manual
Changes" sheet included
with
this manual.
If
the
change sheet
is
missing, contact the nearest
Hewlett-
Packard
Sales
and Support
Office
listed
at
the back
of
this manual. Instruments having a
lower
serial prefix
than that listed
on
the title page are covered in Section
VII.
1-35. ACCESSORIES
1-36. The accessory supplied
is
a detachable
power
cord
229
em
long
(71/2
feet), part
number
8120-1378.
1-37.
Side
Handle:
5061-1171
1-38. Rack
Mount
Kits:
Rack
Mount
Kit,
HP
Part
Number
5060-0173.
Locking Rack
Mount
Kit
for
two
HP
5384A/
HP
5385A modules,
HP
Part
Number
5060-0174.
1-39. RECOMMENDED TEST
EQUIPMENT
1-40.
The test
equipment
listed in Table 1-2
is
recom-
mended for use
during
performance tests, adjustments,
and troubleshooting. Substitute test
equipment
may be
used
if it meets the required characteristics listed in
the table.
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