MD23-104
User Guide
Mid-Continent Instruments and Avionics
3
User Guide UG104, Revision 1
January 4, 2022
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 gnd
2
ARINC Out (A)
Rebroadcast of ARINC In 1 data
3
ARINC Out (B)
(see pin 2)
4
Dimmer Input
5, 14, or 28VDC input (if used)
5
ARINC In 1(A)
ARINC In from Battery 1
6
ARINC In 2(A)
ARINC In from Battery 2 (if used)
7
Reserved
8
Reserved
9
Reserved
10 Reserved
11 Reserved
12 Reserved
13 Reserved
14 ARINC In 1(B)
(see pin 5)
15 Reserved
16 ARINC In 2(B)
(see pin 6)
17 Reserved
18 Reserved
19 Power Input
+10-32VDC
20 Reserved
21 Reserved
22 Reserved
23 Reserved
24 Reserved
25 Reserved
26 Reserved
Table 1 Unit Connector Pin Identification
