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Raymarine C120 Classic NMEA connections to multiplxer

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Raymarine C120 Classic NMEA connections to multiplxer

Old 10-02-2015, 09:49 AM
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Default Raymarine C120 Classic NMEA connections to multiplxer

I am now doing away with an integrated AIS receiver through a Brookhouse AIS-C Mux and Have ordered a stand alone AIS Transponder and Receiver.

I am trying to wire the the GPS, VHF, and heading sensor to a Raymarine E5509 Mux.

The inputs seem obvious i.e. GPS to NMEA 1a & 1b (unbuffered), Heading sensor to NMEA 2a & 2b (unbuffered) and the VHF to NMEA 3a & 3b.

However I'm not sure how to wire to the input of the AP16/10 autopilot computer, and how to connect to the C 120 NMEA 0183 connecting cable (yellow, brown, green, white).

I have made a sketch of all of the modules and I would be very grateful if it could be explained how they should be wired together?

Many thanks for any help,
James.

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Old 10-02-2015, 10:17 AM
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Hejsan,

you should visit brookhouse webpage, there you'll find all you're in need of.

http://brookhouseonline.com/nmeamux_aisc.htm
http://brookhouseonline.com/diag_ceseries.htm

Please also read carefully the installtion manual about the " white wire ". This wire has to be connected sometimes to bypass impedance issue.

The owner ( Woutdt ) is a very kean and helpfull guy if you can't fix it by yourself
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Old 10-02-2015, 12:37 PM
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I stated that I'm doing away with the brookhouse mux, which by the way, is an excellent piece of kit, and was so very easy to interface with a C120.

My problem is as shown in the image, to interface with a Raymarine Mux.
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Old 10-02-2015, 07:17 PM
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wire the out of the mux to the in of the plotter. then you get GPS, DSC, heading (from pilot output) to plotter

I would wire the out of the plotter direct to the AP input and VHF input and don't bother going through the mux with these

every thing would be at 4800baud

I don't know why you are taking AIS off your plotter. you will regret it. your new AIS should also be feeding this. (or you are you using the weird seatalk 2 port?)

Last edited by smac999; 10-02-2015 at 07:27 PM.
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Old 10-03-2015, 01:32 AM
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Originally Posted by smac999 View Post

I don't know why you are taking AIS off your plotter. you will regret it. your new AIS should also be feeding this. (or you are you using the weird seatalk 2 port?)
This is what I've been toying with too! The new Tx/Rx AIS has an NMEA output that I could connect to the Brookhouse AIS-C and retain the function on the plotter too.

The reason for wanting the plotter to run at 4800 baud is that I still have the problem that the boat icon appears to jump around on the plotter screen ( http://www.thehulltruth.com/marine-e...g-jerking.html ).

I put this down to the higher baud rate (38400) that the Brookhouse AIS-C converts modules to as this effect was not present before installing the Brookhouse AIS-C.
If I could solve this problem I'm more than happy to connect the new stand alone AIS Tx/Rx through the Brookhouse AIS-C to the C120 MFD.
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Old 10-03-2015, 03:15 AM
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convert the 125 to seatalk...

feed heading, DSC, AIS into mux. mux output to plotter input at 38,400.

plotter output to mux at 38,400. needs to get steped down to 4800 to feed VHF in and auto pilot in. (just split to both)

exactly as posted above. but without spare GPS

http://brookhouseonline.com/nmeamux_aisc.htm
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