Introduction; Firmware Revision; Dcr100 Features; Quick Install - Maretron DCR100 User Manual

1 Introduction

Congratulations on your purchase of the Maretron DC Relay Module. Maretron has designed
and built your DCR100 to the highest standards for years of dependable and accurate service.
Maretron's DCR100 contains 6 Direct Current (DC) relays, each capable of switching up to 10
Amps. The DCR100 connects directly to an NMEA 2000
the relays from a Maretron DSM250 display or any device onboard or remotely running
Maretron's N2KView
lights, or inductive DC loads like pumps and motors. The DCR100 can also be used to switch
AC circuits using external relays. An added benefit of the DCR100 is that it reports the current
through each of the six channels. This allows you to determine if loads are drawing too little
electrical current such as burnt out bulbs, or if the loads are starting to draw too much electrical
current.
The Maretron DCR100 is designed to operate within the harsh demands of the marine
environment. However, no piece of marine electronic equipment can function properly unless
installed, configured, and maintained in the correct manner. Please read carefully and follow
these instructions for installation, configuration, and usage of the Maretron DCR100 in order to
ensure optimal performance.

1.1 Firmware Revision

This manual corresponds to DCR100 firmware revision 1.0.0.

1.2 DCR100 Features

The Maretron DCR100 has the following features.
• NMEA 2000
®
• Waterproof Connectors
• Sealed Waterproof Enclosure
• Opto-Isolated from NMEA 2000
• Six Relays for On / Off Control Over NMEA 2000
• Each Relay Capable of Carrying Up to 10 Amps
• Individual Relay Electrical Current Monitoring
• Automatic Relay Over Current Shutdown (Shuts Down at ≈ 12 Amps)
• Automatic Relay Thermal Shutdown (Over Temperature Protection)

1.3 Quick Install

Installing the Maretron DCR100 involves the following five steps. Please refer to the individual
sections for additional details.
1. Unpack the box (Section 2.1)
2. Choose a mounting location (Section 2.2)
3. Mount the DCR100 (Section 2.3)
4. Connect the DCR100 (Section 2.4)
Revision 1.1
®
Platinum software. The DCR100 easily handles resistive DC loads like
Interface
®
Eliminating Potential Ground Loops
®
network, so you can turn on and off
®
Network
® ®
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