Ais transponder to Raymarine E120w

[geem]

I have the following wiring on my AIS transpoder

Pin 1 T+. RS485/422
Pin 2 TX. RS232
Pin 3 RX. RS232
Pin 4 T- RS485/422
Pin 5 GND
Pin 6 R+ RS485/422
Pin 7 R- RS485/422

Can anybody tell me how to wire this to my Raymarine E120w?
I have the mulitcore cable with lots of different colour wires from the E120w. Not sure how to wire.

 

[AngusMcDoon]

I assume you want to get AIS data from your transponder and into your E120W. I will also assume that your plotter's connections are as on page 37 of this...

http://www.raymarine.eu/WorkArea/Dow...t.aspx?id=1324

The AIS transponder will be transmitting its data at 38.4 kbaud, because that's what they do.

The plotter manual shows that you will need to use port 2 as that is the only one that supports that speed. Therefore use these connections...

Pin 1 T+ to Orange/White IN+
Pin 4 T- to Orange/Green IN-

You will need to set port 2 to 38.4 kbaud in your E120W menus somewhere.

 

[geem]

I assume you want to get AIS data from your transponder and into your E120W. I will also assume that your plotter's connections are as on page 37 of this...

http://www.raymarine.eu/WorkArea/Do...cted? The AIS has its own GPS and VHF aerials

 

[AngusMcDoon]

Thanks AngusMcDoon. If I am also transmitting as well as receiving do I need anything else connected? The AIS has its own GPS and VHF aerials

An on/off switch so that you can switch it off and not transmit when it will only cause clutter.

 

[laika]

An on/off switch so that you can switch it off and not transmit when it will only cause clutter.

I'm wondering if it might be worth a punt to connect up NMEA TX from the plotter ie:
Pin 6 R+ to orange/yellow
Pin 7 R- to orange/brown

after all, there's probably not much else you're going to be connecting it to at 38.4k. Why bother? The E120W has a soft "silent mode" switch which I understand is implemented by sending proprietary sentences which might be understood by the AIS unit assuming it's based on an SRT board
http://yachtelectronics.blogspot.co.uk/2011/02/srt-proprietary-ais-commands.html
"uncloaking" when necessary from a plotter at the helm can be handier than nipping downstairs to switch a physical switch. OK not that much easier but you don't loose much by wiring it up

 

[geem]

The ais has a silent button built in, but would be handy to have it available on the raymarine so I can do from the cockpit