® J2K100 J1939 to NMEA 2000® Gateway User’s Manual Revision 1.0 Copyright © 2006 Maretron, LLC All Rights Reserved Maretron, LLC 9034 N. 23rd Ave #13 Phoenix, AZ 85021-7850 http://www.maretron.com Maretron Manual Part #: M001201 Revision 1.
J2K100 User’s Manual Revision History Revision 1.0 Original document Page ii Description Revision 1.
® Table of Contents 1 2 3 4 5 6 7 8 Introduction ........................................................................................................................1 1.1 Firmware Revision.................................................................................................... 1 1.2 J2K100 Features ...................................................................................................... 1 1.3 Quick Install.......................................................................
J2K100 User’s Manual This Page Intentionally Left Blank Page iv Revision 1.
® 1 Introduction Congratulations on your purchase of the Maretron J1939 to NMEA 2000® Gateway (J2K100). Maretron has designed and built your gateway to the highest standards for years of dependable and accurate service. Maretron’s J2K100 is a gateway for bridging J1939-equipped engines and gensets with an NMEA 2000® network.
J2K100 User’s Manual 2 Installation 2.1 Unpacking the Box When unpacking the box containing the Maretron J2K100, you should find the following items: 1 – J2K100 - J1939 to NMEA 2000® Gateway 4 – Mounting Screws 1 – Female Micro Field-Attachable Connector (For connecting J1939 interface) 1 – J2K100 User’s Manual 1 – Warranty Registration Card If any of these items are missing or damaged, please contact Maretron. 2.
® 2.3 Mounting the J2K100 Attach the J2K100 securely to the vessel using the included brass mounting screws or other fasteners as shown in Figure 1 below. Figure 1 – Mounting the J2K100 Revision 1.
J2K100 User’s Manual 2.4 Connecting the J2K100 The J2K100 requires two electrical connections as shown in Figure 2. Refer to Section 2.4.1 for making the NMEA 2000® connection and Section 2.4.2 for making the J1939 connection. Figure 2 – J2K100 Electrical Connections 2.4.1 Connecting the J2K100 NMEA 2000® Interface Vertical text on the J2K100 label identifies the NMEA 2000® connector. With the label right side up, the NMEA 2000® connector can be found on the right side of the enclosure.
® Figure 3 – NMEA 2000® Connector Face Views 2.4.2 Connecting the J2K100 J1939 Interface Vertical text on the J2K100 label identifies the J1939 connector. With the label right side up, the J1939 connector can be found on the left side of the enclosure. In order to make the J1939 connection, you will need to locate the supplied female field attachable connector. This connector is fitted to one end of a 3-conductor cable (not supplied).
J2K100 User’s Manual 2.5.1 J1939 Source Address Selection The J2K100 connects into a J1939 network and translates messages from a single J1939 device into NMEA 2000® messages. By default, the J2K100 only translates J1939 messages from a J1939 device with a source address of zero. If the J1939 source address of the engine, transmission, or genset to be monitored is different than zero, then the J2K100 must be programmed with the appropriate J1939 source address.
® NMEA 2000® PGNs. For example, if the J2K100 receives engine related messages from the J1939 network but no transmission or genset messages, then the J2K100 will generate the corresponding NMEA 2000® engine PGNs but it will not transmit any NMEA 2000® transmission or genset messages. As another example, let’s say that there is an engine and a genset connected to the J1939 network yet we are only interested in having the engine messages translated to corresponding NMEA 2000® PGNs.
J2K100 User’s Manual 4 Troubleshooting If you notice unexpected operation of the Maretron J2K100, follow the troubleshooting procedures in this section to remedy simple problems. Symptom No engine, transmission or genset data visible on NMEA 2000® network. Troubleshooting Procedure Ensure that the J1939 network is operational by observing J1939 gauges or displays. You should see information transmitted from the engine, transmission, or genset displayed on the J1939 displays.
® J1939 Data Translated to NMEA 2000® Data J1939 SPG/PGN 190 / 61444 102 / 65270 100 / 65263 175 / 65262 110 / 65262 167 / 65271 183 / 65266 247 / 65253 109 / 65263 94 / 65263 92 / 61443 513 / 61444 189 / 65214 237 / 65260 234 / 65242 523 / 61445 127 / 65272 177 / 65272 Description Engine Speed Engine Turbocharger Boost Pressure Engine Oil Pressure Engine Oil Temperature 1 Engine Coolant Temperature Alternator Potential (Voltage) Engine Fuel Rate Engine Total Hours of Operation Engine Coolant Pressure Eng
J2K100 User’s Manual Electrical Parameter Operating Voltage Power Consumption Load Equivalence Number (LEN) Reverse Battery Protection Load Dump Protection Value 9 to 16 Volts <150mA 3 Yes Yes Comment DC Voltage Average Current Drain NMEA 2000® Spec. (1LEN = 50 mA) Indefinitely Energy Rated per SAE J1113 Mechanical Parameter Value 4.50” x 3.20” x 2.09” 8 oz.
® 7 Installation Template Please check the dimensions before using the following diagram as a template for drilling the mounting holes because the printing process may have distorted the dimensions. 2.35” 3.90” Figure 4 – Mounting Surface Template Revision 1.
J2K100 User’s Manual 8 Maretron (2 Year) Limited Warranty Maretron warrants the J2K100 to be free from defects in materials and workmanship for two (2) years from the date of original purchase. If within the applicable period any such products shall be proved to Maretron’s satisfaction to fail to meet the above limited warranty, such products shall be repaired or replaced at Maretron’s option.
® Appendix A – NMEA 2000® Interfacing J2K100 NMEA 2000® Periodic Data Transmitted PGNs PGN 127488 – Engine Parameters, Rapid Update The J2K100 uses this PGN to transmit rapidly changing engine data. Field 1: Engine Instance – This field indicates the particular engine for which this data applies. A single engine will have an instance of 0. Engines in multi-engine boats will be numbered starting at 0 at the bow of the boat incrementing to n going in towards the stern of the boat.
J2K100 User’s Manual 9: Fuel Pressure – This field indicates the pressure of the engine fuel in units of 1000 Pa. 10: Reserved – This field is reserved by NMEA; therefore, the J2K100 sets all bits to a logic 1.
® engines are numbered starting from the port side and proceeding towards the starboard side. 2: Rated Engine Speed – This field indicates the maximum rated rotational speed of the engine in units of ¼ RPM. 3: VIN – This field indicates the Vehicle Identification Number of the engine as a textual representation. 4: Software ID – This field indicates the version number or other identifying information for the software in the engine as a textual representation.
J2K100 User’s Manual 3: Generator Average AC RMS Frequency – This field indicates the average frequency of the generated power measured at the generator output in units of 1/128 Hz. 4: Generator Average RMS Current – This field indicates the average current measured at the generator output in units of 1 Ampere. Page B4 Appendix A – NMEA 2000 Interfacing Revision 1.
