Trutrak Pictorial Pilot Manuel d'utilisateur télécharger pdf (Page 17)

Electrical Pin-out

The table below provides a brief explanation of each pin function on the main 15-pin connector P101.

9 101112131415

345678

Rear 15-Pin Connector P101

viewed from rear of unit

P101

Function Notes

1 Autopilot Master (+12 to +14 V DC). The autopilot itself draws less than 0.3 ampere. Most of

the current required by the system is used by the servo (up to 1Amp depending on torque

setting)

2 Control Wheel Switch. Connect as shown in wiring diagram to a SPST momentary switch

located remotely to the autopilot for convenient engage/disengage function.

3 Primary Serial Input. Baud rate selectable, normally 4800 or 9600 baud. Automatically

decodes NMEA-0183, Garmin Aviation Format, or Apollo/UPSAT Moving-Map format.

Provides directional reference to the autopilot.

4,5,6 Reserved. Do not connect to these pins.

7 Roll Servo Torque Control. A signal from the autopilot to the roll (aileron) servo which sets

the amount of torque to be delivered by the servo.

8 Ground Connection. Provide #20 AWG to common grounding point.

9 Power Connection to Servo. Provide #20 AWG to Servo Pin 1.

10 Instrument Lamp Dimmer. A source of variable DC from external dimming control module.

Drives the LED brightness control. If left disconnected, the LED display will be full-on.

Roll (aileron) Servo control lines. These lines cause the stepping motor in the roll servo to run

in the appropriate direction at the desired velocity. They are small-signal lines and do not have

any substantial current-carrying capability or require any special shielding. Connect to roll

servo as shown on wiring diagram.

Wiring to roll servo J201

J101 Pin 11 Pin 12

Direction of servo arm / capstan rotation

(as viewed from face of the servo body)

for RIGHT aileron

Standard J201-4 J201-5 Servo CCW (counter-clockwise) Î RIGHT

Reversed J201-5 J201-4 Servo CW (clockwise) Î RIGHT

Reverse servo direction if

necessary by swapping

wires on pin 11 and 12.

See note 3 on wiring

diagram.

15 Ground Connection to Servo. Provide #20 AWG to Servo Pin 9.

TruTrak Flight Systems Pictorial Pilot Installation & User Guide

December 2009 15 8300-011 Rev B

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Trutrak Pictorial Pilot Manuel d'utilisateur Page 17