SIM100 User's Manual
Figure 2 – NMEA 2000
®
Connector Face Views
2.4.2 Switch Connections
The SIM100 switch connections are made by connecting to the 12-pin terminal strip on the top
of the unit. First, remove the four screws at the corners of the unit detaching the splash guard
from the unit. On the bottom of the splash guard, you will find a label detailing the wire
connection to pin number assignments, which are repeated in the table below.
Pin #
Signal Name
Connection
1
SW1A
Switch #1 Signal A
2
SW1B
Switch #1 Signal B
3
SW2A
Switch #2 Signal A
4 SW2B
l
Switch #2 Signal B
5 SW3A
l
Switch #3 Signal A
6
SW3B
Switch #3 Signal B
7
SW4A
Switch #4 Signal A
8
SW4B
Switch #4 Signal B
9
SW5A
Switch #5 Signal A
10
SW5B
Switch #5 Signal B
11
SW6A
Switch #6 Signal A
12
SW6B
Switch #6 Signal B
Before attempting to connect the SIM100 to the AC source, determine the type of system you
will be monitoring. The SIM100 supports the connection and monitoring of two different system
types; 1) switch with end-of-line resistor (Section 2.4.2.1), or 2) switch without end-of-line
resistor (Section 2.4.2.2). To connect Maretron SIM100 accessories, please refer to the
installation directions that accompany each accessory.
Page
4
Revision
1.0
