Master Acquisition Unit (MAU)

The Master Acquisition Unit (MAU) series features an internal back plane with up to eight interchangeable cards to support rapid customisation and configuration for various applications.

The unit supports a dual channel configuration with redundant acquisition cards and redundant processing used to support higher integrity applications.

FPGA based processing coupled with high speed analog front ends allows both digital (e.g. ARINC-429) and analog (e.g. Synchro) signals to be measured with the same pins in different applications.

Total I/O capability is determined by exact card configurations and pin availability, e.g.

Expansion capabilities via internal daughter cards include:

  • Differential (input): 48 channels
  • Single Ended (input): 96 channels
  • Transcievers: 6 channels
  • Discrete Outputs: 2 channels
  • Auxiliary Outputs: 4 protected 28VDC

Card Types
(exact configuration subject to installation requirements)

Power and Transceiver
Card
28VDC input with ARINC-429, ARINC-717, ARINC-825 transceivers
Acquisition Card(s)24 channel High Speed DifferentialProgrammable input ranges:
+/- 40VDC, +/- 20VDC, +/- 10VDC, +/- 5VDC
ADC Resolution: 16 bit (20 bit with oversampling)
Sampling rate (per channel):
1000 kHz
48 channel Single EndedInput range: 0-40 VDC ADC Resolution: 10 bit
Sampling rate (per channel): 100 Hz
Programmable shunt discrete pullup: 400 A
Discrete type: Tristate ( GND, Open, 28VDC ) with switching hysteresis
4 port Ethernet SwitchOnly for use with Single FPGA and Microprocessor card.
Includes Active Power over Ethernet capability.
16 port Adaptive BusTwo wire Power and Data
Processing
Card(s)
Dual Channel FPGA with Monitor
Single FPGA with MicroprocessorIncludes 2 gigabyte NAND for
internal recording
Please feel free to contact us for additional information and services quotes.

PHYSICAL AND ELECTRICAL SPECIFICATIONS

Dimensions133mm (5.3”) width, 71mm (2.8”) height, 154mm (6.1”) depth
WeightLess than 1kg (< 2.2 lbs)
Mounting TypeFlanged with Qty 4 #10 QPL fastener (e.g. NAS1352-3-10)
Mounting OrientationUnrestricted
ConstructionAluminium AMS QQ-A-200/8, ASTM-B221
FinishMIL-DTL-5541 Type II Class 3, painted subject to requirement (excluding faying surface)
Power supply inputDual 28 VDC nominal, 10 to 80 VDC, DO-160 CAT Z
Power supply consumptionMaximum 10 watt (excluding inrush and external powered loads)
Power supply hold-up energy5 seconds minimum
Input ConnectorMIL-DTL-38999 Series III, D38999/20FJ35PN
Mating ConnectorMIL-DTL-38999 Series III, D38999/26FJ35SN
Operating Temperature (operating)-55 to +71 degrees Celcius
Operating Temperature (non-operating)-55 to +85 degrees Celcius
Operating AltitudeUp to 55,000 ft
Environmental QualificationRTCA DO-160G
Design AssuranceRTCA DO-254 and DO-178C (as applicable)
Production ApprovalsFAA PMA (where PMA assist applies), otherwise Certificate of Conformance

Contact us for additional information and services quotes

1.877.374.5521
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