
Copyright 2009 Maretron, LLP. All rights reserved. As Maretron is constantly improving its products, all specifications are subject to change without notice. Maretron’s products are designed to
be accurate and reliable; however, they should be used only as aids to navigation and vessel monitoring, and not as a replacement for traditional navigation and vessel monitoring techniques. A
prudent captain or navigator never relies on a single source for navigation or system monitoring information. “NMEA 2000” is a registered trademark of the National Marine Electronics Association.
17
2.75" (70mm)
4.50" (114mm)
2.204" (56mm)
2.834" (72mm)
Parameter Value Comment
Annunciator Volume 105 dB SPL Mechanical Volume Control
Annunciator Frequency 2.9 kHZ
Standard Comment
NMEA 2000
®
Standard Level A
Maritime Navigation and Radio Communication Equipment & Systems IEC 61162-3
Maritime Navigation and Radio Communication Equipment & Systems IEC 60945
FCC and CE mark Electromagnetic Compatibility
Description PGN # PGN Name Default Rate
Periodic Data PGNs 128720 Proprietary Alarm Status* 1 time/second
Response to Requested PGNs
126464 PGN List (Transmit and Receive) N/A
126996 Product Information N/A
126998 Configuration Information N/A
Protocol PGNs
059392 ISO Acknowledge N/A
059904 ISO Request N/A
060928 ISO Address Claim N/A
065240 ISO Address Command N/A
126208 NMEA N/A
Maretron Proprietary PGNs 128720 Configuration N/A
Parameter Value Comment
Operating Voltage 9 to 32 Volts DC Voltage
Power Consumption
100 mA NMEA 2000 Interface
Load Equivalence Number (LEN)
2 NMEA 2000® Spec. (1LEN = 50 mA)
Reverse Battery Protection Yes Indefinitely
Load Dump Protection Yes Energy Rated per SAE J1113
Parameter Value Comment
Size 2.75” x 4.50” x 2.00” (70mm x 114mm x 51mm)
Including wall plate – Mounts in standard single-gang electrical box
Weight 13 oz. (368.5g)
Parameter Value
IEC 60945 Classification Exposed
Degree of Protection IP67
Operating Temperature -25°C to 55°C
Storage Temperature -40°C to 70°C
Relative Humidity 93%RH @40° per IEC60945-8.2
Vibration 2-13.2Hz @ ±1mm, 13.2-100Hz @ 7m/s
2
per IEC 60945-8.7
Rain and Spray 12.5mm Nozzle @ 100liters/min from 3m for 30min per IEC 60945-8.8?
Solar Radiation Ultraviolet B, A, Visible, and Infrared per IEC 60945-8.10
Corrosion (Salt Mist) 4 times 7days @ 40°C, 95%RH after 2 hour Salt Spray Per IEC 60945-8.12
Electromagnetic Emission Conducted and Radiated Emission per IEC 60945-9
Electromagnetic Immunity Conducted, Radiated, Supply, and ESD per IEC 60945-10
Safety Precautions Dangerous Voltage, Electromagnetic Radio Frequency per IEC 60945-12
Environmental Mechanical
Electrical
NMEA 2000
®
Parameter
Group Numbers (PGNs)
Certifications
Specifications
*Future firmware updates will allow the ALM100 to be in conformance with the
upcoming NMEA 2000 alarm messaging protocol, once it is defined.
DSM250 Screen Shots
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