CardinalNSB(at)aol.com
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 Posted: Sun Jun 10, 2007 6:43 pm Post subject: How hard to wire panel-Approach HUB |
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My thoughts on the Approach System and wiring your own panel:
1. Everything goes into and then out of the "Hub". I would prefer that some items be wired direct, for instance the cdi to navcom, instead of from the cdi to the Hub and then to the navcom, or from the encoder to Hub to transponder vs. encoder to transponder direct.
2. From the Approach website, cost for my panel: Pro Hub 589; PSE audio panel to hub 99; Intercom cable 99; Garmin GNC300 to Hub 149; Ki 202 Cdi to hub 99; ;Annunciator to hub 149; Kns80 to hub 149; KI 206 cdi to Hub 99; Icom 200 to hub 99; Txpr to hub 79; Enc. to hub 79; The 202 and 206 aren't listed so I used the regular cdi price, I assume the connectors and pins f?or these would be additional cost since they are special., I'm guessing 75 per cable more. So, estimated $1611 list price before discounts for the above, maybe the smaller Hub will work, .
3. I bought a premade $200 harness for the audio panel/marker beacon/intercom. I kept the audio inputs wires separate from the intercom wiring so that I can upgrade avionics later without cutting into the intercom wiring (there is one common ground commection, however). I did have to put the other "output" ends on for the garmin, kns80 and will on Icom; dsubs and molex, about 16 in all. The encoder came with its own harness, took me about an hour to put the transponder end and gps end is just 1 wire (d-subs). You would save the time of the encoder wiring and 16 dsubs/molex connectors by using the HUB.
3. As already mentioned, you still are left with the antennas cable connections, power, ground, breakers, lights, dimmer, ptt, and other switches, whether you use the HUB or not.
4. My wiring experience is 8 track stereo and keeping a small office network and telephone lines working, and old cars running, and household wiring. Mostly A to B, not much theory.
This is my first aircraft project. You will need at least the antenna and amp crimpers even if you use the HUB, and I can't imagine not having a dsub crimper anyway. I have a hard time with the molex pins.
5. I would verify wire layouts before powering up, whether I used HUB or not. So not much time savings unless you just plug and play.
6. I might buy a harness for the cdi's, estimate $200 for 2 and I will insert into the connectors myself.
7. Of course the big benefit to the HUB is future upgrades are just a cable change away. Good luck. Skip
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