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Old 23-01-2022, 10:02   #1
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Simrad Robnet cable connection

I need to cut the autopilot cable (Simrad Robnet cable) which runs to the control head (AP22) in the cockpit. I want to attach connectors to each end of the wire I cut so I can re-connect them easily later (instead of splicing the individual wires) - it's a 6 wire cable (+ shield) so I am thinking I can use one of these (waterproof) 7-pin connectors to do the job, the tricky part I guess is the shield which I will have to cut down and solder to one of the pins.

Is there a better connector for this purpose? I think if I had a 6-pin metal connector the shield would be soldered to the body of the connector like with a PL-259 or something similar. I like this connector because it is waterproof, although a metal connector could use shrink tubing to keep it dry - this connection will be under the cockpit floor.

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Old 23-01-2022, 10:51   #2
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Re: Simrad Robnet cable connection

Consider whether a six pin DIN connector offers an advantage. DIN connectors are shielded, and so apparently is your autopilot cable, but I don't know how sensitive your autopilot signals are to interference or how much stray electromagnetic energy you have wandering about below your cockpit.
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Old 23-01-2022, 11:21   #3
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Re: Simrad Robnet cable connection

Pretty much any 6-pin connector set you can buy will work just fine. My old Simrad AP21 for 20 years was connected with an Amphenol pair that was laying in the original dealers junk box.

While there can be all kinds of complicated engineering considerations involved in the choice of connectors, this application is more a matter of what physically fits, what’s waterproof enough, the ability to make the proper connections (assembly considerations) and what’s available at reasonable cost.
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