ETMS Specifications

The ETMS unit is housed in an aluminum chassis qualified to DO-160-F requirements. The system has received FAA STC approval for installation in Cirrus SR20/SR22 aircraft. OTHER AIRCRAFT APPROVALS PENDING. 

Input and Output Features:

• 16 discrete opto-isolated inputs (28V/Gnd).
• 3 RS-232 serial interfaces, 1500 V isolation.
• 8 discrete opto-isolated 28V/2A outputs, 4000 V isolation.
• Dual 10/100 Ethernet ports
• Dual USB 2.0 ports
• 3 ARINC 429 channels (high and low speed, optional)
• Embedded AHRS unit (option)

Environmental:

• Operating temperature/altitude effects
  - DO-160E Section 4 Cat B1 and Section 5 Cat B
• Humidity: DO-160E Section 6 Cat A
• Shock: DO-160E Section 7 Cat A
• Vibration: DO-160E Section 8 Cat S, Zone 1 or 2
• EMI
  - Emissions : DO-160E Section 21 Cat L
  - Susceptibility: DO-160E Section 18 Cat B
  - Induced effects: DO-160E Section 19 Cat ZC
  - RF susceptibility: DO-160E Section 20 Cat RA
• Power input: DO-160E Section 16 Cat B
  with 10 mS power interrupt
• Voltage spike per Section 17 Cat B

Physical Characteristics:

• Weight: 2.9 pounds
• Power Consumption: Less than 8 watts
• MTBF > 20,000 hours
• Temperature: -40C to +85C operating