The PC104 Series" are 3 and 4 Channel PC/104 and compatible synchro,
resolver, and LVDT/RVDT to digital converters, employing type 2
ratiometric tracking converters specifically suited for high performance
They will accept any group of up to 4 individual, 3-wire Synchro,
or 4-wire Resolver inputs, or
2-4 wire LVDT/RVDT inputs; over a frequency range of 50Hz.
to 10KHZ., and convert them into 10-16 bit words of virtually
jitter-and lag free, natural binary data representing the input signals
absolute physical position.
Data is addressable in a single
word 16 bit format over
the PC/104TM stack-bus. Data made available to the bus is continuously
updated (tracking) without interruption; output data
is accurate, monotonic, and always fresh up
to the maximum tracking rate of the converter.
No external transformers, modules
or signal conditioners are required.
chro/resolver and LVDT converters used feature internal solid-state
or Transformer Isolated Scott
T's that accept direct
field voltage inputs.
Transformer Isolation is
offered for all the
reference and signal input lines, This
completely isolates the card and effectively the whole computer from all
field wiring, eliminating concerns over; troublesome ground loops,
ground induced noise, differing potentials, ground interjected spikes,
and ghostly field noise that so frequently takes down, and/or corrupts
the operation of, entire systems.
Solid State input units are for price-paramount applications,
offering densities up to 4 channels per module, with separate reference
inputs for each channel, and common mode rejection exceeding 70 db..
Because only "whole complete converters" are used throughout; direct
field input voltages are facilitated and neither external components,
conditioning, or field component selections/changes, are required.
Transformer isolated units, facilitate PC/104 module densities up to
3 channels per card, and separate reference inputs are provided for each
channel; allowing up to 3 differing reference sources to be used with a
single card, and complete channel to channel and channel to bus
isolation exceeding 500VDC.
Accuracy, performance, and dynamic characteristics, are specified
and tested inclusive of the whole PC/104TM assembly, and
printed test data is provided, and maintained, on all units.
Maximum versatility has been employed on the PC104 Series' products
to assure the universal compatibility in addressing, timing, system, and
specific computer hardware
and software independence.
The PC104 Series cards are configured with a full 16 bit range of
jumper-plug selectable I/O addressing . The interface is asolidly-reliable,
high-speed, true 16 bit
access. Simply address the I/O; and read the data.
Because 'auto-handshaking is
provided on-board, to
prevent false reads, and a
true 16 bit data bus is used; there is no
need to employ any additional software steps
to inhibit the converters, or manipulating 8 bit bytes; and the user is
assured only the most current, valid and "dynamic" data is presented to
Additionally, a single Status
Word is provided to
report the BIT/Faultstatus of
each independent channel.
fragments that may be used as drivers, are
provided in various
and generic C, assembly, and (examples in) Basic programming languages.
In addition, a C written Demonstration program is provided for Out-Of-The-Box
testing, scaling, and offsetting; without any
user programming required.
PC104's are available in: commercial OoC to +70oC,
industrial -40oC to +85oC (operating), temperature
range models. Military extended temperature range units, available on
These compact, full
function, highly reliable,low power PC104
Series converters are ideally suited applications that demand: assured
out-of-the-box performance, finite, data integrity, inherent
sensor compensation, long term repeatability, and reliability.
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