Allowing you to control and monitor all onboard electronic systems from your Garmin chartplotter or compatible third-party display, the MCU device is an essential component of larger, more complex digital control installations. It is the central processor that drives the system and provides the computing power, intelligence and decision-making functions — plus coordination between the system’s distribution control modules (DCMs), including the NXT™ DCM and Connect 50™ DCM units from EmpirBus.
In addition, there are various interfaces for connection to external devices. The updated MCU v.2 boasts two auxiliary CAN ports and two RS485 ports that are galvanically isolated and can be configured for additional third-party integrations in parallel.
The MCU device talks to all the other system components via the NMEA 2000® network. Configuration files for the installation are stored in the MCU, so if a DC module is ever damaged it can simply be replaced, and it will be programmed by the MCU device. While the MCU is designed to support larger, more complex switching systems, on smaller systems one of the Connect 50 or other DCM units can be set up to function as the master control for the system.
Specs
General |
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| Dimensions (WxHxD) | 6.8″ x 3.5″ x 1.8″ (173 x 89 x 32.5 mm) |
| Weight | 7.1 oz (200 g) |
| Communication | CAN-bus NMEA 2000® network LEN-4 2 auxiliary CAN ports 2 auxiliary RS485 ports |
| Power supply | Powered via NMEA 2000 |
| Power consumption | Max/average 195 mA @ 9 V/165 mA @ 9 V |
| Supply voltage | 9-32 Vdc |
| Ambient temperature | -20° C to +55° C |
| Enclosure water rating | IP65 |
Connector |
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| NMEA 2000 | Micro 5-pin M12 male, mini USB, 12-pin M12 male |
Engineering enhancements are ongoing and may not be reflected in the pictures, videos and specifications.
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