MD23-190
User Guide
Mid-Continent Instruments and Avionics
3
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
1
Ground
Power return; connect to a/c ground
2
ARINC Out (A)
ARINC label 150
3
ARINC Out (B)
(paired with pin 2)
4
Dimmer Input
5, 14, or 28VDC input (if used)
5
ARINC In 1(A)
ARINC labels 150, 252
6
ARINC In 2(A)
Reserved
7
Reserved
8
Reserved
9
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
