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post #1 of Old 01-29-2014 Thread Starter
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Is it useless: NMEA2000 In-line terminator

I just received a bundled Garmin GWS-10 (wind sensor) / GMI-20 (display head), and have a question for folks experienced in NMEA 2000 about the in-line terminator.

In the following diagram an "in-line terminator" is used as a junction between the GWS10 wind sensor and the backbone cable:




What does this do? I buzzed it out with a multimeter and found absolutely no resistance across the pins. It seems to be a direct feed-through for signal and power.

Why can't I just connect the backbone cable directly to the instrument? (The connectors mate just fine.)

The only reason I can think to use the in-line terminator is that it provides some strain relief, but it's a little bulky to mount at the masthead if it's not critical. I have other cables (vhf, anchor light) that will require strain-relief as well, so I figured I'd use 1 clamp to provide strain relief for all the masthead cables.

I'd appreciate insight as to whether or not this thing is really needed.
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