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Date:  10-27-2013
Number of Hours:  5.00
Manual Reference:  none
Brief Description:  Mounting G3X Components

Oct 27, 2013. 5 hours.

I decided I had a fairly good idea for the locations of the G3X components and so I started to lay them out on the sub panel. I tried my best to make everything fit as I thought they should be oriented for best access and routing of wires. I had to add support for the mounting of the GSU-25 to make the sub panel more rigid.

GSU 25 provides the following functions:

• Attitude (pitch, roll)
• 3 axis accelerations
• 3 axis angular rates
• Magnetic heading (with input from GMU 22)
• Pressure/density altitude
• Vertical speed
• Indicated/true airspeed
• Angle of attack
• Outside and total air temperature (via GTP 59)

I mounted the GEA-24 unit on the sub panel near the firewall where most the connections will exit and go towards the engine. The GEA 24 is an input/output system used to monitor and power engine and airframe sensors for the Experimental – Amateur Built (E-AB) and Light Sport Aircraft (LSA) markets.

The GEA-24 provides:

• 9 pin network-power connector
• 50 pin miscellaneous connector for airframe sensors
• 25 pin thermocouple input connector
• 37 pin miscellaneous connector (for airframe sensors) will provide for the following input/output functionality:
◦ Configure analog, digital, and discrete I/O capability
◦ Output digital measurement of analog input resistive sensors
◦ Output digital measurement of analog input voltages
◦ Output digital state of discrete input sources
◦ Output frequency measurement of digital input sources
◦ Control of discrete annunciator outputs

I mounted the GAD-29 near the GEA-24 but further away from the firewall.

Th GAD-29 provides:

• 2 Low Speed ARINC 429 Transmitters
• 4 Low Speed ARINC 429 Receivers
• 1 CAN Network Port

The below picture was a preliminary placement idea but as you can see the final has changed a bit.
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