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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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Table of Contents
Troubleshooting
