I recently purchased a 15ft NMEA 2000 Evinrude EMM interface cable Part # 766026 and it is a little bit too short to reach my helm area where my elecronics are located. Does anyone know if a longer cable is available ?
Thanks in advance for any info.
The cable does not have to reach your dash, it attaches to the backbone, which is the network cable that should run from the back of the boat to the helm.
http://continuouswave.com/whaler/reference/NMEA2000.html - Good Networking Article
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There are no longer cables because according to the NMEA standard that is approximately as long as a the cable can be. The limit is 6 meters between the device (in this case the EMM) and the backbone, when you combine the cable and the wires in the harness it cant really be that much longer.
If your only missing like 12 to 18 inches you can just screw a backbone/drop cable to the end of it to extend it but i certainly wouldnt go any longer than that.
What you will need to do is to move one end of your backbone to the back of the boat. You can do this but installing a T and a terminator in the back of the boat to hook the engine into and use a backbone cable to connect it to the Ts under the dash.
PS backbone and drop cables are really the same cable they just have 2 differnt terms for them based on what they are being used for.