Connecting Attached Gray Cable To Analog Gauge; Connecting Attached Gray Cable To Rudder Angle Sender; Connecting To Nmea 2000 Interface; Table 1 - Raa100 Gauge Connections - Maretron RAA100 User Manual

the RAA100 as a stand-alone adapter without attaching an analog gauge, then skip Section
2.3.1.1 and refer to Section 2.3.1.2.
2.3.1.1

Connecting Attached Gray Cable to Analog Gauge

Connecting the RAA100's permanently attached gray cable to the analog gauge does not
require the removal of any wires between the gauge and the rudder angle sender. All
connections normally made between the gauge and rudder angle sender stay in place and the
RAA100 is simply connected to the terminals on the back of the gauge.
Not including the gauge light connections, analog gauges have three connection points or
terminals: 1) power, 2) ground, and 3) sensor. The power connection may be marked with a
plus sign "+","+12V", or an "I" or "IGN", while the ground connection is usually marked with a
minus sign "-", the earth ground symbol " ", or a "G" for ground, and the sensor connection is
generally marked with an "S" for sensor or "G" for gauge. You might have to refer to the gauge
documentation or schematic to determine the exact function of the three gauge terminals but it
is important to distinguish which terminals are the power, ground, and sensor. Once you have
determined the terminals on the back of the gauge, connect the wires found within the
RAA100's permanently attached gray cable as shown in Table 1 using recommended wiring
practices (i.e., ABYC, Coast Guard, NMEA, ISO, etc.).

2.3.1.2 Connecting Attached Gray Cable to Rudder Angle Sender

Resistive rudder angle senders have two terminals; 1) the sensor terminal and 2) the ground
terminal. The sensor terminal is usually marked with an "S" for sensor or a "G" for gauge where
the ground terminal is usually marked with a minus sign "-". A good way to determine which
terminal is the ground is to observe which terminal is touching the metal housing; this will be
the ground terminal. The sensor terminal will be insulated from the metal housing. Once you
have determined the terminals on the resistive rudder angle sender, connect the wires found
within the RAA100's permanently attached gray cable as shown in Table 2 using
recommended wiring practices (i.e., ABYC, Coast Guard, NMEA, ISO, etc.).
Table 2 – RAA100 Resistive Rudder Angle Sender Connections
2.3.2 Connecting to NMEA 2000
The Maretron RAA100 provides a connection to an NMEA 2000
male connector (see Figure 4). You connect the RAA100 to an NMEA 2000
Maretron NMEA 2000
Revision 1.0
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Gauge Terminals
Power (+, +12V, I, IGN)
Ground (-, , G)
Sensor (S, G)
Table 1 – RAA100 Gauge Connections
Sender Terminals
Sensor (S, G)
Ground (-)
®
Interface
®
cable (or an NMEA 2000
Wire Color
Red
Black
Green
Wire Color
White
Black
®
interface through a five pin
®
compatible cable) by connecting the female
® ®
®
network using a
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