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HMFLI unit is a human-machine interface system for aircraft/helicopter applications, providing the capability to interface with Multifunctional Console and other systems/sub-systems.

The unit has been qualified for avionic environment: shock, vibration, temperature, humidity, salt fog, conducted emission, radiated emission and susceptibility.

HMFLI unit is a human-machine interface system for aircraft/helicopter applications, providing the capability to interface with Multifunctional Console and other systems/sub-systems.

The unit has been qualified for avionic environment: shock, vibration, temperature, humidity, salt fog, conducted emission, radiated emission and susceptibility.

Custom internal products (power supply, HD carrier, backplane) were developed specifically for HMFLI by Ele.Si.A.

It features:

  • CPU card
  • Ethernet Switch
  • Memory Mass
  • 2 separate Power Supplies: one to power CPU card and Memory Mass and another to power the Ethernet Switch

The solution is based on COTS qualified elements, both for Processing Communication interfaces, both for Power Supply modules

N.1 Processor board based on Intel Core2 Duo @1.5 GHz, 4MB shared L2 cache

4 GB of DDR2 SDRAM with ECC

N. 4 Gigabit Ethernet Interface on CPU module

N.1 Ethernet Switch with 12 ports 10/100/1000 Base TX Switch

Storage

32 GB Solid State SATA disk

2 GB of NAND Flash, USB i/f

Serial Lines:

N. 2 EIA 232 + N.2 422/485 Serial Ports

PMC/XMC Expansion:

N.1 PMC slot

N.1 XMC slot

Storage Interface:

N.2 SATA port

N.2 USB port

Discrete I/O Interface:

N.8 TTL Digital Input/Output (actually used 3 ports only)

Audio I/O Interface:

N.1 audio input (MONO)

N.1 audio output (MONO)

Rugged and compact forced convection cooled enclosure

MIL-DTL-38999 interface connectors

N. 2 separate power supplies, 28Vdc input, MIL-STD-704E compliant installed on a removable carrier and activated by two INHIBIT signals each one for a single power supply.

The HMFLI has been fully qualified with the following environmental characteristics in accordance with MIL STD-810F and RTCA-DO 160D:

Operating temperature Range: from -40°C to +55°C (With meth. 501.4 Proc.II & meth 502.4 Proc.II)
Storage temperature Range: from -55°C a +85°C (With meth. 501.4 Proc.I & meth 502.4 Proc.I)
Humidity 95% non condensing (With meth. 507.4 Proc I)

Max Ambient Pressure 115 kPa (sea level)
Min Ambient Pressure 74.5 kPa (8260 ft)
Max Pressure Rate 10000 ft/min
In Flight
Ground Soak
Operating Temp.
Operating Temp.
Not Operating Temp.
Min
Max
Min
Max
Min
Max
Time Continuous
-40°C
+55°C
-40°C
+55°C
-55°C
+85°C

Salt and fog 5% NaCl - With meth 509.4 Proc I
Fungus meth.518.5 - Demonstrated by, materials, technology and design.
Contamination meth.504.1 - Demonstrated by, materials, technology and design.
Explosive Atmosphere meth.511.4 proc. I - Demonstrated by, materials, technology and design.
Shock (functional) 20g for 11 msec - With meth.516.5 proc. I:
Shock (Crash hazard) 40g for 11 msec - With meth.516.5 proc. V:
Vibration
(According to RCA-DO160D, sect8):
Functional: curve B
Endurance: curve B1
Duration: 1/2 hour before and another 1/2 hour after the 3h of random vibration endurance test on each axis
Acceleration (structural) 7g 1min - With meth.513.5 proc. I:
Acceleration (Functional) 5g 1min - With meth. 513.5 proc. II:
Acoustic Noise The acoustic noise emission of the units will be 70dB at a distance of 1 meter

The HMFLI meet the following electromagnetic characteristics in accordance with MIL STD-461E:

Conducted Emission: CE101 in according to Fig. CE101-4 Curve #2 30 Hz - 10 KHz
CE102: 10KHz - 10MHz in according to curve CE102-1
CE03: 10MHz - 100MHz
Conducted Susceptibility: CS101: 30 Hz -150 KHz in according to Fig. CS101-1 and CS101-2
CS114: 10 KHz -100 MHz in according to Fig. CS114-1 curve #5
CS116: 10 KHz -100 MHz in according to Fig. CS116-2
Radiated Emissions: RE101: 30 Hz -100 KHz
RE102: 10 KHz -18 GHz
Radiated Susceptibility: RS101: 30 Hz -100 KHz in according to Fig. RS101-2
RS103: 2MHz -40 GHz 20V/m according to table VII RS103