Hardware Interfaces
The following interface cards work with the M300/M200 data acquisition system. The M300 data acquisition system also supports other interface cards from different vendors. The acquisition type reference lists a complete list of the supported acquisition types. The board table shows all the different supported interface types.
Features Standard
SEA Analog Input System, 16 Channels
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| Click here for schematic |
- 16 Differential input channels.
- 16 bit resolution.
- 20 µs conversion time.
- Instrumentation grade differential amplifier per channel.
- 1, 2, 4 and 8 gain.
- A/D conversion performed remotely from backplane,
no clock interface.
- A/D nodes can be located remotely from M300/M200 system (up to 100m).
- 9 - 36 VDC, 1 Amp.
- 8.4” wide x 1.7” high x 8” deep.
ISA 2D Grey Scale Spectrometer
Features
2D Grey Scale Spectrometer Interface
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| Click here for schematic |
- All required probe signals provided for one 2D Grey probe.
- 100% PMS Probe compatible.
- X and/or Y dimensions provided for each particle.
- 16 bit wide data path for maximum data transfer rate.
- Demand mode transfers 32 bits, in one DMA cycle, for minimal impact to CPU.
- Built in true air speed clock generator (15 Hz to 6.0 MHz).
- Elapsed time clock configurable to 0.25 µs, 2.5 µs or 25 µs resolution.
- Elapsed time (arm to full) measured to 29 hours with 25 µsec resolution.
- Elapsed time since start of image (32 bits).
- Elapsed time sine start of buffer (32 bits).
- Elapsed distance.
- Total number of minimum, middle and maximum pixels provided for each particle.
- Total area of minimum, middle and maximum shadow provided for each particle.
- Image buffer acquired in 5.2 ms (2 MHz bit shift rate, 64 x 64 pixel image).
- Single slot 16 bit full size ISA interface.
- Diagnostic status output port.
- Up to three interfaces per system.
- Configurable DMA channels (5, 6, 7).
- Configurable IRQ channels (10, 11, 12).
- Configurable for minimum number of slices per image.
- Configurable for minimum number of blank slices between images.
- Probe house keeping data capability.
- Real-Time size spectra provided
386, 486 and PENTIUM compatible.
- Unload bit shift rate is adjustable from 2 MHz to 0.125 MHz.
- Particle slice counter (16 bit).
2D Monochromatic Spectrometer Interface
Features
2D Monochromatic Spectrometer Interface
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| Click here for schematic |
- All required probe signals provided for one 2D Mono probe.
- 100% PMS Probe compatible.
- 16 bit width data path for
maximum data transfer rate.
- Demand mode transfers 32 bit slice, in
one DMA cycle, form minimal impact to CPU.
- Built-in true air speed
clock generator.
- Elapsed time (arm to full) measured to 29 hours
with 25 µs resolution.
- Elapsed distance (arm to full).
- Normal and gated Shadow
OR provided.
- Probe house keeping data.
- Real time size spectra provided.
- Image buffer acquired
in 23 ms (2 MHz bit shift rate).
- Configurable DMA channels (5, 6, 7).
Features
- All 255 ARINC data labels utilized.
- Update count maintained
separately for each ARINC label.
- Most recent data value for each
label maintained in memory for access by M300/M200 system.
- Includes
socket for up to 4 Synchro/Digital converters for inputs such as
heading, pitch, roll, bearing, etc...
- Model for ARINC 429 data.
- 2 Rx ports, 1 Tx port
ARINC 429 Interface (Half Size)
Features
ARINC 429 Interface (Half Size)
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| Click here for schematic |
- All 255 ARINC data labels utilized.
- Update count maintained
separately for each ARINC label.
- Most recent data value for each
label maintained in memory for access by M300/M200 system.
- Model for ARINC 429 data.
- 4 Rx ports, 2 Tx port
- Half Size.
Features
- All 255 ARINC data labels utilized.
- Update count maintained
separately for each ARINC label.
- Most recent data value for each
label maintained in memory for access by M300/M200 system.
- Includes
socket for up to 4 Synchro/Digital converters for inputs such as
heading, pitch, roll, bearing, etc...
- Model for ARINC 565 data.
Cloud Aerosol Precipitation Spectrometer Interface
Features
Cloud Aerosol Precipitation Spectrometer Interface
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| Click here for schematic |
- All required probe signals provided for one CAPS probe.
- 100% CAPS Probe compatible.
- 16 bit width data path for
maximum data transfer rate.
- Demand mode transfers 32 bit slice, in
one DMA cycle, form minimal impact to CPU.
- CIP Image and CIP serial data channels.
- CAS/CDP serial data channel.
- Real time size spectra provided.
- Configurable DMA channels (5, 6, 7).
Features
- 24 counter channels.
- 32 bit counters.
- Count mode for rising edge, falling edge and both edges.
- Trigger Threshold DAC (0.0 to 3.3 volts).
- 20 nsec minimum pulse width.
- 5 MHz single edge limit.
- ISA Bus interface (16 bit).
- Other configurations possible with firmware upgrade.
FSSP/ASASP/1D Advanced Interface
Hardware Features
FSSP/ASASP/1D Advanced Interface
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| Click here for schematic |
- 16 bit wide data path with automatic hardware count
clearing for greatly reduced acquisition time.
- 100% PMS Probe compatible.
- 16/32/64/128/256 Size channels,
32 bits each channel.
- 1 Total count channel, 32 bits.
- 1 Total strobe channel,
32 bits.
- 1 Activity channel,16 bits.
- 2 Spare channels, 32 bits
each channel.
- Probe house keeping data.
- Built in 256 channel particle
space monitor (PSM).
- Spacing monitor bin widths adjustable from 0.25
µsec to 10 ms each.
- 1 Channel reference and 7 utility A/D converter,
12 bits, ±5
mv to ±10 volts by jumper.
- CAMAC version available.
- 1.5 µs acquisition time
for each size channel for a total of 384 µs for all 256 size
channels (2.6 KHz maximum).
780 µs total acquisition time for a fully active setup (256
size channels, 256 strobe interval channels (PSM active), all auxiliary
counters active).
- Control register for range command (FSSP) and pump
control (ASASP and PCASP).
- House keeping data, eight channels.
- Eight input analog
differential channels (with input protection). Reference voltage
plus seven utility analog channels (12 bits, ±5v
or ±10v selectable by jumper, gain 1, 10 or 100 selectable
by jumper, with 40 µs acquisition time per channel).
- Integrated
System Interface for stand alone operation (user configurable).
- Single
slot 16 bit full size ISA interface.
- Up to eight interfaces per
system.
- 386, 486 and PENTIUM compatible.
Software Features
- Real time size spectra, concentrations, volumes for multiple
probes.
- Fully configurable command byte to 1D probe.
- Number of
size channels configurable in board setup.
- Number of strobe interval
channel configurable in Acquisition Table (PSM may be disabled).
FSSP/ASASP/1D Basic Interface
Features
FSSP/ASASP/1D Basic Interface
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| Click here for schematic |
- 100% PMS Probe Compatible.
- 15 Size channels, 16 bits each channel.
- 1 Total count channel, 16 bits.
- 1 Total strobe channel, 16 bits.
- 1 Activity channel, 16 bits.
- 2 Spare channels, 16 bits each channel.
- Reference A/D channel, 8 bit, 0-10 volts.
- 260 µs total acquisition time for all 21 channels.
- CAMAC version available.
FSSP/ASASP/1D Basic Interface (Half Size)
Features
FSSP/ASASP/1D Basic Interface (Half Size)
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| Click here for schematic |
- 100% PMS Probe Compatible.
- 15 Size channels, 16 bits each channel.
- 1 Total count channel, 16 bits.
- 1 Total strobe channel, 16 bits.
- 1 Activity channel, 16 bits.
- 2 Spare channels, 16 bits each channel.
- Reference A/D channel, 8 bit, 0-10 volts.
- 260 µs total acquisition time for all 21 channels.
- Half Size.
Features
- Includes one synchro chip for heading.
- This interface can be an ISA ARINC 429 or ISA ARINC 565 interface, with the hardware for the synchro only (no ARINC support).
Features
PC104 ARINC 429 Interface
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| Click here for schematic |
- All 255 ARINC data labels utilized.
- Update count maintained
separately for each ARINC label.
- Most recent data value for each
label maintained in memory for access by M300/M200 system.
- Model for ARINC 429 data.
- 4 Rx ports, 2 Tx ports
- PC104 bus.
Features
- Required to connect SEA analog input system to M300/M200 system.
- Required to connect SEA pressure multiplexer controller
to M200/M300 system.
- Capable of connecting up to 256 instruments
to M300/M200 via digital cable.
- Integrated system board section (use either System board or SEA Bus interface for M300/M200).
- Provides system interrupts (IRQ 3), for real-time acquisition mode.
- High precision crystal.
- Counters for IRQ latency and duration.
- Counters for Proxy latency and duration.
- PC104 bus.
SEA Pressure Multiplexer Controller
Features Standard
SEA Pressure Multiplexer Controller System
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| Click here for schematic |
- PMX boxes can be located remotely from M300/M200 system (up to 100m).
SEA 
