em-trak B921 to Raymarine Backbone - which cable?

jlavery

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I'm planning to buy an em-trak B921, for connection to a Raymarine Seatalk ng backbone.

The B921 has an NMEA2000 socket - it's not clear which cable I need to connect to a Raymarine backbone. Do I need:
  1. NMEA2000 cable and NMEA200 to Seatalk ng spur converter
  2. A Raymarine Seatalk ng spur cable
Or do I need something else!?

Thanks,

James
 
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Similar set up as me. I used this

CORRECTION - I bought this for the Actisense unit that I needed for 0183 data to NAVTEX

Actisense SeaTalk NG to NMEA 2000 adaptor cable (drop). Only for purchase with Actisense NMEA 2000 devices. - STNG-A06045

I had to buy a 5 way connector to plug the cable into my network. Other connector sizes are available e.g. a T, Make sure you use the blue blanking caps on the ends that is not connected to the STNG.

Raymarine SeaTalk ng 5 Way Connector - A06064
Thanks for the correction. I'm familiar with all the other bits I need (this is my 2nd re-wiring, seeing as Arpeggio got written off... ).
 
I'm planning to buy an em-trak B921, for connection to a Raymarine Seatalk ng backbone.

The B921 has an NMEA2000 socket - it's not clear which cable I need to connect to a Raymarine backbone. Do I need:
  1. NMEA2000 cable and NMEA200 to Seatalk ng spur converter
  2. A Raymarine Seatalk ng spur cable
Or do I need something else!?

Thanks,

James
The B921 is the most basic Emtrak AIS, the B923 has a built in VHF splitter.
 
Raymarine also offer these:

Possibly they're cheaper because Raymarine saved the NMEA 2000 licensing fee and labelled them "Raynet" instead?
They are not Raynet. Raynet is Raymarine's Ethernet based network used for high bandwidth networking like radars, cameras and inter MFD connections, and devices that NMEA 2000 was never designed for, like the Axiom remote keypads.

Raymarine still had to pay the NMEA a licensing fee for access to the NMEA 2000 standard. However, because their devices are not fully NMEA 2000 compliant (connectors and other things) they cannot market them using the terms "NMEA 2000" or "N2K". That may be why the above adapters are labelled DeviceNet rather than NMEA 2000. The NMEA 2000 standard lifts its connector spec straight from DeviceNet, so will be a guaranteed fit, but is confusing for the purchaser.
 
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