®
ALM100
Alarm Module
User’s Manual
Revision 1.0
Copyright © 2008 Maretron, LLP All Rights Reserved
Maretron, LLP
9014 N. 23rd Ave #10
Phoenix, AZ 85021-7850
Maretron Manual Part #: M001901
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Table of Contents
1 Introduction ...........................................................................................................................1
1.1 Firmware Revision.................................................................................................... 1
1.2 ALM100 Features..................................................................................................... 1
1.3 ALM100 Accessories................................................................................................ 2
1.4 Quick Install.............................................................................................................. 2
2 Installation.............................................................................................................................2
2.1 Unpacking the Box ................................................................................................... 2
2.2 Choosing a Mounting Location................................................................................. 2
2.3 Mounting the ALM100 .............................................................................................. 3
2.4 Connecting the ALM100........................................................................................... 4
2.4.1 NMEA 2000® Connection............................................................................... 4
2.4.2 Checking Connections................................................................................... 5
2.5 Configuring the ALM100........................................................................................... 5
2.5.1 Device Instance ............................................................................................. 6
2.5.2 Label.............................................................................................................. 6
2.5.3 Test Annunciator............................................................................................ 6
2.5.4 Advanced Configuration…............................................................................. 6
2.5.4.2 Restore Factory Defaults ................................................................. 6
2.5.4.3 Installation Description… ................................................................. 6
4 Troubleshooting ....................................................................................................................7
5 Technical Specifications........................................................................................................8
6 Technical Support .................................................................................................................9
7 Installation Template ...........................................................................................................10
8 Maretron (2 Year) Limited Warranty....................................................................................11
Table of Figures
Figure 1 – Mounting the ALM100 into an Electrical Box............................................................ 3
Figure 2 – Flush Mounting the ALM100 Directly to a Wall......................................................... 4
Figure 3 – NMEA 2000® Connector Face Views ....................................................................... 5
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1 Introduction
Congratulations on your purchase of the Maretron Alarm Module. Maretron has designed and
built your ALM100 to the highest standards for years of dependable and accurate service.
Maretron’s Alarm Module generates visual and audible alerts for any monitored condition. The
Alarm Module includes an extremely loud 105 dB SPL Piezoelectric sounder, along with a red
high-brightness LED to indicate an alarm condition. A second green LED indicates that the
Alarm Module is powered and ready to be triggered. The audible alarm can sound any one of
32 distinct pre-programmed patterns to indicate different alerts. The Alarm Module can be
triggered by alarms generated by Maretron’s N2KView Vessel Monitoring System, or by
Maretron’s DSM250 Color Graphics Display. The Alarm Module mounts in a standard electric
box or can be flush mounted on any surface. Completely waterproof, the Alarm Module can be
mounted inside or outside the vessel.
The Maretron ALM100 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 ALM100 in order to
ensure optimal performance.
1.1 Firmware Revision
This manual corresponds to ALM100 firmware revision 1.0.2.
1.2 ALM100 Features
The Maretron ALM100 has the following features.
• NMEA 2000 Network Interface
• Super loud 105dB audible alarm
• Bright Red LED visual alarm
• Green LED status indicator
• Mounts in standard electrical wall box or flush mount box
• Multiple user-selectable alarm patterns
o “Code-3” (ISO 8201, Smoke/Fire) 0.5s on, 0.5s off, 0.5s on, 0.5s off, 0.5s on,
1.5s off
o “Temporal 4” (T4, CO) 0.1s on, 0.1s off, 0.1s on, 0.1s off, 0.1s on, 0.1s off, 0.1s
on, 5.0s off
o “IMO Code 1a (7 pulse)” (General Emergency Alarm, SOLAS III/50,III/6.4) [1 s
on, 1 s off][repeat 7 times]long tone (7s on), 1 s off
o “IMO Code 2” Continuous on
o “IMO Code 3.a” [0.5 s on, 0.5 s off][repeat continually]
• Waterproof - Can be mounted indoors or outdoors
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1.3 ALM100 Accessories
Maretron offers the following accessories for the ALM100:
• CP-WH-ALM100
ALM100 White Faceplate
1.4 Quick Install
Installing the Maretron ALM100 involves the following five steps. Please refer to the individual
sections for additional details.
2 Installation
2.1 Unpacking the Box
When unpacking the box containing the Maretron ALM100, you should find the following items:
1 – ALM100 Alarm Module
1 – ALM100 Black Faceplate
2 – ALM100 Mounting Screws
2 – Faceplate Mounting Screws
1 – Faceplate Gasket
1 – Sounder Volume Control Baffle Plate
1 – Sounder Volume Control Shutter
1 – Screw for Sounder Volume Control
1 – Sounder Collar
1 – Sounder Gasket
1 – ALM100 User’s Manual
1 – Warranty Registration Card
If any of these items are missing or damaged, please contact Maretron.
2.2 Choosing a Mounting Location
Please consider the following when choosing a mounting location.
1. The ALM100 is waterproof, so it can be mounted in a damp or dry location.
2. The orientation is not important, so the ALM100 can be mounted on a horizontal deck,
vertical bulkhead, or upside down if desired.
3. The ALM100 is temperature-rated to 55°C (130°F), so it should be mounted away from
engines or engine rooms where the operating temperature exceeds the specified limit.
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Appendix A – NMEA 2000 Interfacing
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2.3 Mounting the ALM100
The ALM100 is designed to be mounted in an ANSI/NEMA WD 6 electrical switch box, but it
may also be mounted directly into a wall.
If mounting the ALM100 into an electrical box, which can in turn be surface-mounted onto a
wall or bulkhead, attach the ALM100 securely to the electrical box using the included mounting
ALM100 Faceplate
Faceplate Gasket
NMEA 2000 Cable (not
included)
ALM100 Mounting Screws (x2)
Faceplate
Mounting Screws
(x2)
Sounder Gasket
Electrical Box (not
included)
Volume Control Baffle Plate
Sounder Collar
ALM100 Alarm Module
Volume Control Shutter
Volume Control Screw
Figure 1 – Mounting the ALM100 into an Electrical Box
to cut the hole in the wall and drill the mounting holes for the ALM100. Next, attach the
ALM100 securely to the wall using the included mounting screws or other fasteners as shown
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ALM100 User's Manual
ALM100 Faceplate
Faceplate Gasket
NMEA 2000 Cable (not
included)
ALM100 Mounting Screws (x2)
Faceplate
Mounting Screws
(x2)
Sounder Gasket
Volume Control Baffle Plate
Sounder Collar
ALM100 Alarm Module
Volume Control Shutter
Volume Control Screw
Figure 2 – Flush Mounting the ALM100 Directly to a Wall
The following instructions apply wither mounting the ALM100 into an electrical box or to a wall:
1) Connect the NMEA 2000 cable to the connector on the ALM100 Alarm Module
2) Using the included ALM100 mounting screws, mount the ALM100 Alarm Module to the
wall or electrical box
3) Place the sounder gasket over the sounder on the ALM100 alarm module
4) Place the faceplate gasket over the ALM100 alarm module
5) Mount the ALM100 faceplate over the ALM100 alarm module using the included
faceplate mounting screws.
6) Screw the sounder collar onto the sounder of the ALM100 alarm module, which should
now be protruding through the large hole in the faceplate, and tighten until snug.
7) Optionally, you may install the volume control by first placing the volume control baffle
plate over the front of the sounder, then placing the volume control shutter over the
volume control baffle plate, and finally attaching both to the sounder by threading the
volume control screw into the hole in the center of the sounder.
2.4 Connecting the ALM100
The ALM100 requires a single type of electrical connection: the NMEA 2000® connection (refer
2.4.1 NMEA 2000® Connection
The NMEA 2000® connector can be found on the rear of the enclosure. The NMEA 2000®
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Appendix A – NMEA 2000 Interfacing
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NMEA 2000® network using a Maretron NMEA 2000® cable (or compatible cable) by
connecting the female end of the cable to the ALM100 (note the key on the male connector
and keyway on the female connector). Be sure the cable is connected securely and that the
collar on the cable connector is tightened firmly. Connect the other end of the cable (male) to
the NMEA 2000® network in the same manner. The ALM100 is designed such that you can
plug or unplug it from an NMEA 2000® network while the power to the network is connected or
disconnected. Please follow recommended practices for installing NMEA 2000® network
products.
Figure 3 – NMEA 2000® Connector Face Views
2.4.2 Checking Connections
Once the NMEA 2000® connection to the ALM100 has been completed, you should first check
to see that power is being received by the ALM100 by checking that the green power LED on
the front of the unit is illuminated. Next, you should check to see that information is being
properly received by using the ALM100 test function on an appropriate NMEA 2000® display,
such as the Maretron DSM250. If the alarm does not sound and flash the red LED during
2.5 Configuring the ALM100
The ALM100 will sound alarms received over the NMEA 2000 network as it is shipped from the
factory; however, it may require configuration, depending on whether you have multiple
ALM100’s installed on the network. There are several configurable items within the ALM100,
which are detailed in the remainder of this section.
You configure the ALM100 using a Maretron DSM250 display or other NMEA 2000® display
unit that is capable of configuring the ALM100. Please refer to the Maretron DSM250 User’s
Manual for details.
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2.5.1 Device Instance
NMEA 2000® provides a unique device instance for each alarm device on a vessel. This value
should be programmed in each ALM100 so that each ALM100 is associated with a unique
device instance number. The default instance number is 0, which is used to indicate the first
ALM100 that is hooked to the network. Subsequent ALM100s connected to the network would
be numbered 1, 2, and so on.
2.5.2 Label
The ALM100 may be programmed with a text label that will be displayed in monitoring software
and displays that recognize device labels, such as the Maretron N2KView Vessel Monitoring
System and the Maretron DSM250 display. The label will let you assign an easy-to-remember
text label (example: “Alarm in Pilothouse”) to make it easy for you to identify the device as you
are configuring the monitoring software or display, as well as when alerts are generated.
2.5.3 Test Annunciator
Devices capable of configuring the ALM100 also have the ability to cause the ALM100 to
generate an alarm indication, flashing the red alarm LED and sounding the annunciator. You
may use this function to determine whether the ALM100 is properly connected and configured.
When you select this option, the red alarm LED and annunciator will be activated for a short
period of time.
2.5.4 Advanced Configuration…
Certain parameters do not normally need to be set in order for normal operation, but are
included in an advanced configuration section for use in special situations.
2.5.4.1 NMEA 2000® PGN Enable/Disable
The ALM100 is capable of transmitting NMEA 2000® messages (or PGNs) associated with
monitored switch circuits. You may individually enable or disable each of these messages. You
may also change the rate of transmission of each of these messages if desired.
2.5.4.2 Restore Factory Defaults
Selecting this configuration option causes all stored parameters in the ALM100 to be reset to
the values they contained when the unit was manufactured.
2.5.4.3 Installation Description…
The ALM100, along with all other Level A certified NMEA devices, has two user-programmable
installation description fields. You may program these fields with information specific to the
device, such as date installed, the initials/name of the installer, the physical location of the
device, etc. This configuration option will allow you to program the values of these fields.
3 Maintenance
Regular maintenance is important to ensure continued proper operation of the Maretron
ALM100. Perform the following tasks periodically:
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Appendix A – NMEA 2000 Interfacing
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• Clean the unit with a soft cloth. Do not use chemical cleaners as they may remove
paint or markings or may corrode the ALM100 enclosure or seals.
• Ensure that the unit is mounted securely and cannot be moved relative to the mounting
surface. If the unit is loose, tighten the mounting screws.
• Check the security of the cable connected to the NMEA 2000® connector, and tighten if
necessary.
4 Troubleshooting
If you notice unexpected operation of the Maretron ALM100, follow the troubleshooting
procedures in this section to remedy simple problems. If these steps do not solve your
information).
Symptom
Troubleshooting Procedure
The ALM100 is not
visible on the NMEA
2000® network.
Ensure that the ALM100 is properly connected to the NMEA 2000®
network.
Ensure that the segment of the NMEA 2000® network to which the
ALM100 is connected is powered. Check that the greed power
LED on the front of the ALM100 is illuminated.
Ensure that the ALM100 you wish to monitor is not configured as
“Disabled”.
Ensure that the ALM100 has the appropriate NMEA 2000® PGNs
The ALM100 does not
sound when expected.
Ensure that the ALM100 is properly connected and powered as
described in the preceding section. Use the “Test Annunciator”
function of the DSM250 display to verify that the ALM100 is
Ensure that alerts are configured correctly. Ensure that the
ALM100 has been configured with an instance number as
N2KView or the DSM250 to ensure that this instance number
appears in the list of annunciators to sound for the particular alarm.
Please refer to the DSM250 User’s Manual or the N2KView User’s
Manual for details on alarm configuration.
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5 Technical Specifications
As Maretron is constantly improving its products, all specifications are subject to change
without notice. Maretron products are designed to be accurate and reliable; however, they
should be used only as aids to navigation and not as a replacement for traditional navigation
aids and techniques.
Specifications
Parameter
Value
105 dB SPL
2.9 kHZ
Comment
Mechanical Volume Control
Annunciator Volume
Annunciator Frequency
Certifications
Parameter
Comment
NMEA 2000® Standard
Level A
Maritime Navigation and Radiocommunication Equipment & Systems
Maritime Navigation and Radiocommunication Equipment & Systems
FCC and CE Mark
IEC 61162-3
IEC 60945
Electromagnetic Compatibility
NMEA 2000® Parameter Group Numbers (PGNs)
Description
Periodic Data PGNs
PGN #
PGN Name
Default Rate
1 time/second
N/A
128720 Proprietary Alarm Status*
126464 PGN List (Transmit and Receive)
126996 Product Information
126998 Configuration Information
059392 ISO Acknowledge
059904 ISO Request
Response to Requested PGNs
N/A
N/A
N/A
N/A
Protocol PGNs
060928 ISO Address Claim
065240 ISO Address Command
126208 NMEA
N/A
N/A
N/A
Maretron Proprietary PGNs
128720 Configuration
N/A
*Future firmware updates will allow the ALM100 to be in conformance with the upcoming
NMEA 2000 alarm messaging protocol, once it is defined.
Electrical
Parameter
Value
9 to 32 Volts
100 mA
2
Comment
Operating Voltage
Power Consumption
Load Equivalence Number (LEN)
Reverse Battery Protection
Load Dump Protection
DC Voltage
NMEA 2000 Interface
NMEA 2000® Spec. (1LEN = 50 mA)
Indefinitely
Yes
Yes
Energy Rated per SAE J1113
Mechanical
Parameter
Size
Value
2.75” x 4.50” x 2.00”
Comment
Including wall plate – Mounts in standard
(70mm x 114mm x 51mm) single-gang electrical box
Weight
13 oz. (368.5g)
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Appendix A – NMEA 2000 Interfacing
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6 Technical Support
If you require technical support for Maretron products, you can reach us in any of the following
ways:
Telephone: 1-866-550-9100
Fax: 1-602-861-1777
E-mail: [email protected]
Mail: Maretron, LLC
Attn: Technical Support
9014 N. 23rd Ave Suite 10
Phoenix, AZ 85021 USA
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7 Installation Template
Please check the dimensions before using the following diagram as a template for drilling the
mounting holes because the printing process may have distorted the dimensions.
Figure 4 – Mounting Surface Template
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8 Maretron (2 Year) Limited Warranty
Maretron warrants the ALM100 to be free from defects in materials and workmanship for two (2) years from the
date of original purchase. If within the applicable period any such products shall be proved to Maretron’s
satisfaction to fail to meet the above limited warranty, such products shall be repaired or replaced at Maretron’s
option. Purchaser's exclusive remedy and Maretron’s sole obligation hereunder, provided product is returned
pursuant to the return requirements below, shall be limited to the repair or replacement, at Maretron’s option, of
any product not meeting the above limited warranty and which is returned to Maretron; or if Maretron is unable to
deliver a replacement that is free from defects in materials or workmanship, Purchaser’s payment for such
product will be refunded. Maretron assumes no liability whatsoever for expenses of removing any defective
product or part or for installing the repaired product or part or a replacement therefore or for any loss or damage
to equipment in connection with which Maretron’s products or parts shall be used. With respect to products not
manufactured by Maretron, Maretron’s warranty obligation shall in all respects conform to and be limited to the
warranty actually extended to Maretron by its supplier. The foregoing warranties shall not apply with respect to
products subjected to negligence, misuse, misapplication, accident, damages by circumstances beyond
Maretron’s control, to improper installation, operation, maintenance, or storage, or to other than normal use or
service.
THE FOREGOING WARRANTIES ARE EXPRESSLY IN LIEU OF AND EXCLUDES ALL OTHER EXPRESS OR
IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND OF FITNESS FOR A PARTICULAR PURPOSE.
Statements made by any person, including representatives of Maretron, which are inconsistent or in conflict with
the terms of this Limited Warranty, shall not be binding upon Maretron unless reduced to writing and approved by
an officer of Maretron.
IN NO CASE WILL MARETRON BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, DAMAGES
FOR LOSS OF USE, LOSS OF ANTICIPATED PROFITS OR SAVINGS, OR ANY OTHER LOSS INCURRED
BECAUSE OF INTERRUPTION OF SERVICE. IN NO EVENT SHALL MARETRON’S AGGREGATE LIABILITY
EXCEED THE PURCHASE PRICE OF THE PRODUCT(S) INVOLVED. MARETRON SHALL NOT BE SUBJECT
TO ANY OTHER OBLIGATIONS OR LIABILITIES, WHETHER ARISING OUT OF BREACH OF CONTRACT OR
WARRANTY, TORT (INCLUDING NEGLIGENCE), OR OTHER THEORIES OF LAW WITH RESPECT TO
PRODUCTS SOLD OR SERVICES RENDERED BY MARETRON, OR ANY UNDERTAKINGS, ACTS OR
OMISSIONS RELATING THERETO.
Maretron does not warrant that the functions contained in any software programs or products will meet
purchaser’s requirements or that the operation of the software programs or products will be uninterrupted or error
free. Purchaser assumes responsibility for the selection of the software programs or products to achieve the
intended results, and for the installation, use and results obtained from said programs or products. No
specifications, samples, descriptions, or illustrations provided Maretron to Purchaser, whether directly, in trade
literature, brochures or other documentation shall be construed as warranties of any kind, and any failure to conform
with such specifications, samples, descriptions, or illustrations shall not constitute any breach of Maretron’s limited
warranty.
Warranty Return Procedure:
To apply for warranty claims, contact Maretron or one of its dealers to describe the problem and determine the
appropriate course of action. If a return is necessary, place the product in its original packaging together with
proof of purchase and send to an Authorized Maretron Service Location. You are responsible for all shipping and
insurance charges. Maretron will return the replaced or repaired product with all shipping and handling prepaid
except for requests requiring expedited shipping (i.e. overnight shipments). Failure to follow this warranty return
procedure could result in the product’s warranty becoming null and void.
Maretron reserves the right to modify or replace, at its sole discretion, without prior notification, the warranty listed
above. To obtain a copy of the then current warranty policy, please go to the following web page:
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