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MD23-190 

 

User Guide 

Mid-Continent Instruments and Avionics 

User Guide UG190, Revision 2 

 

 

January , 2021 

2.1 

CONNECTOR PINOUT 

For standard pre-installation and installation instructions, including location, cable harness 
assembly, pneumatic inputs (if applicable), mounting, and others, please refer to the IM.  

Pinout identification specific to this CID is listed in the table below. A brief description is provided. 
Further definition of the inputs and outputs should be documented in the technical requirements 
and/or statement of work and are not provided within this User Guide. 

 

Connector Pinout 

Pin 

Description 

Function 

Ground 

Power return; connect to a/c ground 

ARINC Out (A) 

ARINC label 150 

ARINC Out (B) 

(paired with pin 2) 

Dimmer Input 

5, 14, or 28VDC input (if used) 

ARINC In 1(A) 

ARINC labels 150, 252 

ARINC In 2(A) 

Reserved 

Reserved 

 

Reserved 

 

Reserved 

 

10 

Reserved 

 

11 

Reserved 

 

12 

Reserved 

 

13 

Reserved 

 

14 

ARINC In 1(B) 

(paired with pin 5) 

15 

Reserved 

 

16 

ARINC In 2(B) 

Reserved 

17 

Reserved 

 

18 

Reserved 

 

19 

Power Input 

+10-32VDC 

20 

Reserved 

 

21 

Reserved 

 

22 

Discrete Input 

Flight Timer Start/Stop Signal 

23 

Discrete Input 

Hobbs Timer Start/Stop Signal 

24 

Reserved 

 

25 

Reserved 

 

26 

Reserved 

 

 

Table 1 Unit Connector Pin Identification 

 

 

 

 

Summary of Contents for MidContinent MD23-190

Page 1: ...ent regulatory requirements are qualified to install this equipment It is a supplement to the MD23 Installation Manual and Operating Instructions p n 9019161 If further information is required please...

Page 2: ...set of data is referred to as a Custom Instrument Definition or a CID file The CID file for this instrument is pre loaded and may be available for future updates via a standard USB flash drive through...

Page 3: ...tement of work and are not provided within this User Guide Connector Pinout Pin Description Function 1 Ground Power return connect to a c ground 2 ARINC Out A ARINC label 150 3 ARINC Out B paired with...

Page 4: ...t MANUAL to start and stop the Flight Timer manually o select EXTERNAL to start the timer on an open signal Timer stops when grounded Hobbs Timer Pre Set to coincide with the existing aircraft engine...

Page 5: ...the unit is initially powered on the Middle Pane is blank LOWER PANE The Lower Pane shows the current active value of all four timer functions and allows any of them to be selected for an expanded vie...

Page 6: ...OP and RESET the timer manually by scrolling to and selecting the desired action If RESET is selected without first selecting STOP the timer will reset to zero and continue counting When the Flight Ti...

Page 7: ...mer running Count down Timer T When the Count down Timer is selected from the Lower Pane the Lower Pane and Middle Pane will show HH MM SS The user can SET START STOP and RESET the timer manually by s...

Page 8: ...ARINC input T Count up Stopwatch function with manual start stop reset T Count down Count down timer from user set value with manual start stop reset counts up after reaching zero 4 1 3 USER OPTIONS...

Page 9: ...set to a different time than the GPS time even when GPS time is available In this case the time basis will continue to be synchronized but the manual UTC time will be stored and remembered as an offs...

Page 10: ...ser to choose whether the seconds HH MM SS are shown ON or not shown OFF on the main display for both the time UTC and LOCAL and the Flight Timer This feature is to reduce clutter or distraction per u...

Page 11: ...Hobbs timer if enabled via external signal 5 1 CONFORMANCE For standard conformance items such as qualification levels and software updates please refer to the IM 5 1 1 INSTRUCTIONS FOR CONTINUED AIR...

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