®
Installation Instructions
MS-1035, MS-1055-N, MS-1075, MS-1085-N Magnetic Switches
Instructions
Please follow these instructions to connect any of the MS-1035, MS-1055-N, MS-1075, or MS-1085-N to the
NMEA 2000 network via a Maretron SIM100 Switch Indicator Module. The wiring diagram appears in Figure 1
below. The diagram shows a connection to channel #1, but connections to other channels are similar.
1. Connect the two alarm contact terminals of the sensor portion of the magnetic switch to a free switch
channel. The example in Figure 1 shows the sensor portion of the magnetic switch connected to switch
channel 1 with one wire connected to “SW1A”, and the second wire connected to “SW1B”.
2. Use a Maretron DSM250 display (firmware 1.3.5 or higher), the DSM250 viewing function of the Maretron
N2KAnalyzer software, or other Maretron display product capable of configuring the SIM100 to set the
switch channel mode (indicated as “Channel #x Mode” on the DSM250) for the appropriate channel to
“No End of Line Resistor”. For this example, you would set “Channel #1 Mode” to “No End of Line
Resistor”.
3. Supply Power to the NMEA 2000 network and verify that the switch channel indicates an “off” (alarm)
state using Maretron N2KView software, N2KAnalyzer, or other product capable of displaying switch
indicator state.
4. Place the magnetic portion (the part with no connected wires) of the switch close to the sensor portion
(the part with connected wires) of the switch and verify that the switch channel indicates an “on” (normal)
state during the test.
MS-1035, MS-1055-N,
MS-1075, or MS-1085-N
Sensor
Portion
Magnetic
Portion
SIM100 Screw Terminals
1
2
3
4
5
6
7
8
9
10 11 12
Figure 1 - Wiring Diagram
For installation support, please contact:
Maretron, LLP
9014 N. 23rd Ave #10
Phoenix, AZ 85021-7850
Telephone: (+1) 877-550-9100
E-mail: [email protected]
Copyright © 2008 Maretron, LLP All Rights Reserved
P/N: M001805 Rev.1.1 9/08
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