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
|Power and Transceiver|
|28VDC input with ARINC-429, ARINC-717, ARINC-825 transceivers|
|Acquisition Card(s)||24 channel High Speed Differential||Programmable input ranges:
+/- 40VDC, +/- 20VDC, +/- 10VDC, +/- 5VDC
ADC Resolution: 16 bit (20 bit with oversampling)
Sampling rate (per channel):
|48 channel Single Ended||Input 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 Switch||Only for use with Single FPGA and Microprocessor card.
Includes Active Power over Ethernet capability.
|16 port Adaptive Bus||Two wire Power and Data|
|Dual Channel FPGA with Monitor|
|Single FPGA with Microprocessor||Includes 2 gigabyte NAND for
PHYSICAL AND ELECTRICAL SPECIFICATIONS
|Dimensions||133mm (5.3”) width, 71mm (2.8”) height, 154mm (6.1”) depth|
|Weight||Less than 1kg (< 2.2 lbs)|
|Mounting Type||Flanged with Qty 4 #10 QPL fastener (e.g. NAS1352-3-10)|
|Construction||Aluminium AMS QQ-A-200/8, ASTM-B221|
|Finish||MIL-DTL-5541 Type II Class 3, painted subject to requirement (excluding faying surface)|
|Power supply input||Dual 28 VDC nominal, 10 to 80 VDC, DO-160 CAT Z|
|Power supply consumption||Maximum 10 watt (excluding inrush and external powered loads)|
|Power supply hold-up energy||5 seconds minimum|
|Input Connector||MIL-DTL-38999 Series III, D38999/20FJ35PN|
|Mating Connector||MIL-DTL-38999 Series III, D38999/26FJ35SN|
|Operating Temperature (operating)||-55 to +71 degrees Celcius|
|Operating Temperature (non-operating)||-55 to +85 degrees Celcius|
|Operating Altitude||Up to 55,000 ft|
|Environmental Qualification||RTCA DO-160G|
|Design Assurance||RTCA DO-254 and DO-178C (as applicable)|
|Production Approvals||FAA PMA (where PMA assist applies), otherwise Certificate of Conformance|