e120 CLASSIC NETWORK

[Chuck - Raymarine - Moderator]

Kenneth,

The prior response and the information which follows would support providing GPS and heading data to the NMEA 2000 backbone to which the MFD has been interfaced. The red color coded terminal of the GyroPlus's SeaTalk port and the terminal marked "R" of the C-Series Classic MFD's SeaTalk port are both powered. To avoid a ground loop, these terminals must not be connected to the SeaTalk bus when using a SeaTalk to SeaTalkng Converter Kit. As the C-Series Classic MFD and GyroPlus are presently linked via a single SeaTalk Cable, it is recommended that this cable be disconnected from the MFD's SeaTalk port and instead be interfaced to a D244 SeaTalk Junction Block. The red lead of this SeaTalk cable should be disconnected from the red color coded SeaTalk terminal of the GyroPlus. The C-Series Classic MFD's SeaTalk port will also be interfaced to the D244 SeaTalk Junction Block using an appropriate length of SeaTalk Cable. This SeaTalk Cable will need to be cut and then spliced back together, splicing all leads except of the cable's red leads. The SeaTalk Cable's red leads will need to be insulated to prevent shorting. Finally, the SeaTalk to SeaTalkng Converter Cable supplied with the SeaTalk to SeaTalkng Converter Kit will be used to join the D244 SeaTalk Junction block to the SeaTalk socket of the SeaTalk to SeaTalkng Converter.

An alternative method of supplying the E-Series Classic MFD with GPS data is to simply link the E-Series Classic MFD to the SeaTalk bus used by the C-Series Classic MFD. To do so, it is recommended that the SeaTalk Cable be disconnected from the C-Series Classic MFD's SeaTalk port and instead be interfaced to a D244 SeaTalk Junction Block. The C-Series Classic MFD's SeaTalk port will also be interfaced to the D244 SeaTalk Junction Block using an appropriate length of SeaTalk Cable. The SeaTalk leads of the SeaTalk/Alarm Cable supplied with the E-Series Classic MFD would then spliced to an appropriate length of SeaTalk Cable which would then be plugged into the D244 SeaTalk Junction Block.

While the E-Series Classic MFD will be supplied with 1Hz heading data using either of these methods, interfacing the NMEA 0183 OUT port of the GyroPlus additionally to the E-Series Classic MFD's NMEA 0183 Cable will then permit the E-Series Classic MFD to be supplied with 10Hz heading data.

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