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EP20 Problem

Old 05-12-2008, 01:25 PM
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Default EP20 Problem

Just hooked up an EP20 on a 2007 175 Suzuki. My chartplotter recognizes the EP20 but I cant pick up any satellites. I have two Ts with a 120 terminator on one end.
Old 05-12-2008, 02:52 PM
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Default Re: EP20 Problem

By the way this is my setup: the network cord to the unit on one end, antenna on a bottom, EP20 on a bottom, and a 120 terminator on the other end
Old 05-12-2008, 04:35 PM
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Default Re: EP20 Problem

UPDATE: My unit gets no GPS signal, unit does show what appears to be an accurate RPM reading but shows fuel flow at 0.0GPH.
Old 05-12-2008, 06:34 PM
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Default Re: EP20 Problem

you need to have a 120 terminator on both ends. So at the bottom of a T you should have one going to plotter, one to the gps module, one to the EP20, and one to a 12v power supply to power the network
4 t's and 2- 120 ohm terminators.

You should have gotten the power cable/fuse and a T as a nmea2000 expansion kit.
There was 2 different power leads off the Plotter. One is for power to the unit, and the other was to power the simple plotter network before you expanded. So now that you have added the EP20, you need to D/X the second power that came off the Headunit and use the stand alone one that I described above


Heres a good illustration of what you need to have your connections look like. Except add one more T to go to your EP-20.
http://www.thehulltruth.com/forums/t...99149&posts=12
Old 05-12-2008, 07:48 PM
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Default Re: EP20 Problem

So i'm gonna need to use a power cable and not 2nd power lead from the GPS?? I was under the understanding that this power was sufficent to run the backbone....
Old 05-12-2008, 09:59 PM
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Default Re: EP20 Problem

yep, you need to run the seperate power supply for the network. Dont run both as you will blow the fuses. You cant use the GPS power supply once you add to the network, as its not powerfull enough to power up all the extra network components, and thats why you are having trouble for 2 reasons. 1 is you dont have the propler resistance by only running one trminating end, and 2, the power thru the GPS isnt sufficient to run the network.
Old 05-13-2008, 03:19 AM
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Default Re: EP20 Problem

Assuming you have a Lowrance GPS (you did not state), then you do not need a second network power node - just the network power from the GPS. You do, however need three "t''s and 120 ohm terminating resistors at each end. You also should have one of the "T"'s and resistor at the stern for the EP-20, then a backbone cable up to the console. You should not add more than a 2' extension to the EP-20.
Old 05-13-2008, 05:05 AM
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Default Re: EP20 Problem

It is a Lowrance, when I started having problems, I went back to one T to check my GPS signal...and now my antenna doesnt get a signal. Whats up with that??

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