Specifications
 Certification / Compliance
 TSO C8e & C88b
Canadian STC (PENDING)
FAA STC (PENDING)
Certified as primary replacement or for secondary use
 Environmental
 DO-160E 
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 Software
 DO-178B Level C
 DC Power Source
 Input voltage 6 to 36 VDC
 Power consumption 125mA
 Load dump tolerance +60V
 Direct spike tolerance +/- 60V
 Cable spike tolerance > +/- 1KV
  Operating Temperature
 Constant operating -20ºC to +55ºC 
 Short term operating (1hr) -40ºC to +70ºC
 Storage -55ºC to +85ºC
 Display Units VSI
Feet per Minute
 Display Units Standard Pressure Altitude
Feet
 Accuracy Demonstrated
+/- 1'
 Accuracy Certified (Exceeds)
SAE AS8016A, AS8003
 LCD Display
 Sunlight readable LCD
 176 X 192 display pixels, 65,535 colors
 RS-232 Data Output
 1 second per full sequence at 57.6K bps (8/N/2/N)
 Interface Connector Electrical
 DB-25
 Interface Connector Static Port
 1/8" NPT
 Software Functionality
 Rate of climb or descent
 Rate of climb or descent and Standard Pressure Altitude
 Standard Gillham Grey Code output to transponder
 Performance Specification Statement per AS8003 Section 4.4
 a) Entire instrument power requirement is 125mA. The encoder section is capable of sinking (grounding) and maximum of 1.15A of current (115mA X 10 outputs).
b) The encoder shall interface to transponder units for which the following Gillham Grey Code Outputs are acceptable (most Mode C transponder units):
  - Each encoder lead is a sink driver that will ground up to a 60V input. Minimum voltage is 3V.
- Each encoder lead will sink a constant current of 115mA. Minimum current requirement is 525uA.
- Maximum ON impedance is less than 3 Ohms.
- Maximum ON (logical â??1â?Â) voltage is 60V. Minimum is 3V.
- Leakage current for (4) above is less than 100nA
- Maximum OFF (logical â??0â?Â) voltage is 0.6V. Minimum is 0.12V.
- Maximum rate of altitude change is 100mS.
- Switching bandwidth is greater than 1,000 kHz.
- Provides standard 10-Bit Code.
Dimensions Hole
 Standard 2 1/4" aircraft mounting hole
 Dimensions Enclosure
 2.45? X 2.45? X 0.9?
 Dimensions Including Pressure Port
 2.45? X 2.45? X 1.725?
 Weight (excluding harness)
4.30 oz
 Finish
 Black anodized 6061 aluminum