The J2K100 has a compatible connection to the MAN engine interface found on the engine interface port of most MAN CLC6.3-6.5 engine displays.
We have observed that our customers interface the J2K100 in parallel to the display using a standard micro tee connector. Please refer to the recommended interface point highlighted red in the image below.
For a complete parts list required for NMEA 2000 integration, please see the attachment category below. 
The image below shows an NMEA 2000 Network connection to a MAN CLC 6.5 engine: 
Article ID: 566
Created: December 12, 2013
Last Updated: July 30, 2015
Author: Mark Oslund [mark.oslund@maretron.com]
Online URL: https://www.maretron.com/wp-content/phpkbv95/article.php?id=566