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Manual Number 9018233, Revision A
Mid-Continent Instruments and Avionics
December 22, 2014
2.6 CABLE
HARNESS
Construct the cable harness in accordance with the instructions below including the Connector Pinout of
Table 2.1 and Figure 2.3 and Configuration Module Assembly of Figure 2.4. Installers should follow
industry-accepted practices regarding aircraft wiring and applicable regulatory requirements and
guidance. The instructions for constructing the cable harness as listed within this manual were also used
to construct the harness during environmental and electrical testing. Alterations may invalidate
environmental qualification and/or performance results.
Refer to Section 2.1, Equipment Location for routing precautions.
2.6.1
WIRE GAUGE SELECTION
Wire gauge should be 22 AWG. Use of PTFE, ETFE, TFE, Teflon, or Tefzel insulated
wire is recommended for aircraft use per MIL-DTL-16878 or equivalent. Additionally, for
data signals associated with ARINC 429 inputs and outputs, shielded twisted pair wiring
per M27500 or equivalent is recommended (pin pairs 3 & 8 and 12 & 13).
2.6.2 CONFIGURATION
MODULE
The supplied custom configuration module is required for proper installation and
operation of the unit. The functions associated with the 15-pin D-subminiature connector
are identified as follows:
Unit Connector Pin Identification
Pin No.
Description
Pin No.
Description
1 +10-32VDC
Input
9 Reserved
2
Valid Signal Out
10
Config Module Clock
3 ARINC
Out
B
11 Reserved
4
Reserved
12
ARINC In A
5
Config Module Power
13
ARINC In B
6
Power Return / Ground
14
Config Module Data
7
Reserved
15
Config Module Return
8 ARINC
Out
A
TABLE 2.1
UNIT CONNECTOR PIN IDENTIFICATION
FIGURE 2.3
VIEW FROM REAR OF MATING CONNECTOR
