20th March 2011

Still more wiring

Hours: 4.9 | Posted in Electrical

…and still more left to do.

  • Pulled in the ARINC lines between the EFIS, autopilot, AP source switch, and 430.
  • Wired the autopilot controller connector.
  • Drilled a hole, installed a rubber grommet, then wired and installed a mating connector for the GPS 18x.  I wanted a connector on the subpanel to allow the canopy to be removed (since the current plan is to mount the GPS on the glareshield), and the connector is also a convenient spot to split the GPS signal out to multiple devices: the EFIS, ELT, and APRS all receive a feed, and another line will run to the 430 location, to feed the devices that will take their GPS signal from the 430 (autopilot, transponder), until the 430 is installed.  I put female standoff nuts on the connector, so the connector on the GPS end can be fixed to the subpanel connector.  The connector mounts in a rubber bushing to allow it to be pulled out for service when needed, to add or remove a device.
  • Re-ran the boost pump annunciator wire using a route that made me happier.
  • Decided to locate the ARINC module on the outboard side of the left subpanel rib; this is pretty open from below for access when it comes time to install the module, and I will drill the mounting holes now, install nutplates,  and make a template to keep on hand for later, when the box is in hand and brackets need fabrication.
  • Ran the wires to the ARINC module location and terminated the module connector.
  • Tidied and tied up some wire bundles, most notably everything in the switch row.

Need to figure out if the SL-40 should be receiving any serial feeds; can the AFS push frequencies from it’s database?  I don’t have any open serial ports on screen 1, but I have a spare on screen 2, which would allow me to use that feature (assuming it exists) once I have the second screen.  Also need to figure out where the ADS-B box will reside and sort the wiring to that.  Wondering if I might install rails to mount it above the VP CU, though that’s a lousy spot for accessibility, and worse for installation/removal (at least without pulling the CU first).

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