NMEA 2000 Alarm Button YDAB-01

Yacht Devices Alarm Button YDAB-01 Box contents

The NMEA 2000 Alarm Button YDAB-01 from Yacht Devices is as a multifunction NMEA 2000 device with connection wires to an LED indicator and a speaker.

This NMEA2000 Alarm Button YDAB-01 can be configured for one of the following functions:

  • MOB Button (Default mode)
  • Digital switching alarm unit
  • Engine monitoring unit
Yacht Devices Alarm Button YDAB-01
*YDAB does not include speaker or press button

MOB Button Mode

Pressing the connected button for two seconds sounds an alarm and sends an AIS MOB message (emulating message received from EPIRB and SART devices with AIS VHF support) with the current GPS position. It sets the mark of MOB position on a chart plotter. Pressing the button a second time cancels transmission of MOB messages. Note that messages sent from the device are not transmitted externally via VHF or AIS, but are available to all NMEA 2000 devices on the vessel.

Yacht Devices Alarm Button YDAB-01 MOB MFD Example

Digital Switching Mode

The device acts as an NMEA 2000 binary switch bank with 28 channels, each channel has a unique sound alarm and LED flashing sequence. Channels (and corresponding sound alarms) can be turned on/off from other equipment, including our smart sensors or from the screen of a modern chart plotter. The button connected to the device cancels the alarm.

Yacht Devices Alarm Button YDAB-01 Digital Switching Example

Engine Monitoring Mode

In this mode the device produces sound alarms according to engine alarms sent by the engine control unit or gateway to NMEA 2000. This mode is useful on boats where the regular engine monitoring instruments are already in need of replacement. The device can also be programmed to produce a sound alarm itself at a specified temperature, engine revolution reading etc.

Why do I need this?

  • You have no MFD in the cockpit, and you need to set the MOB mark and wake up your crew fast.
  • Your MFD has no hardware MOB button required by racing rules
  • You need the sound alarm managed from a button or from a MFD screen, to call your backup crew in windy and changing weather conditions.
  • You need to monitor engine parameters and warn the helmsman that parameters are above or below normal (particularly for rented boats).
  • You need to sound alarms from sensors or other devices.

When combined with the NMEA 2000 Wi-Fi Router or NMEA 2000 Wi-FI Gateway, you can manage sound alarms from mobile devices or a PC using the web gauges (no software is required). This allows you to also upgrade firmware and upload custom sound files and configuring advanced settings of the Alarm Button. Mode selection and volume control are also adjusted this way.

You can manage six sound alarms (from 28) of the device from a modern MFD with CZone support (B&G, Simrad, Lowrance, Furuno, Raymarine Axiom, eS and gS series). Configuration files for these MFD are available.

New to NMEA 2000?

If you are new to NMEA 2000 don’t worry. We have all the knowledge required to assist you connecting the Alarm Button including if you don’t have an existing NMEA2000 network we can supply a NMEA 2000 Starter Kit.

Yacht Devices Alarm Button YDAB-01 Wiring example

Manufacturers Product Page: NMEA 2000 Alarm Button

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