Specifications

Page 13
Faria Serial Bus Installation and Wiring Guide (Pleasurecraft Engines)
The system consists of:
• One Gateway box to interface with MEFI IV ECU and external senders and sensors.
• One 5” Tachometer with Fuel Monitor
• One 5” Speedometer with Depth Sounder
• One 5” Optional Speedometer
• Various 2” instruments, including but not limited to
• Voltmeter
• Oil Pressure gauge
• Engine Temperature gauge
• Fuel Level gauge
• others as specified.
Installation
Installation of the Faria Serial Bus system is accomplished as follows:
Gateway Box
The “gateway” box is the central unit of the system. As all of the senders and other
information source peripherals connect to the “gateway”, the “gateway” box should be
mounted in a protected area in the best location to provide the maximum cabling
benefit.
The “gateway” box power cable must be installed to allow connection to “battery
positive” (always on), “battery negative” (ground), and a source of “switched power”
which turns on with the engine ignition switch (see Figure 3 and Table 1).
The “Faria Bus” cable must be routed from the “gateway” box to the instrument panel
area to connect the instruments to the data bus and instrument power (see Figure 4).
The remainder of the connections to the “gateway” box are described below.
Instruments
The instruments are mounted using the provided back-clamps and mounting hardware.
Each instrument comes with a bus connection cable (12”). The main “Faria Bus” cable
from the “gateway” box is connected to the most convenient instrument using either of
the two four (4) pin connectors provided on the instrument case (*except when a Faria
Serial Bus Pilot or a Faria Speedometer-PerfectPass Cruise instrument is installed, see
note below).
Each additional instrument is connected to the previous instrument using one of the
12” bus connection cables. The cable may be connected to either of the two connectors
provided on the instrument case (see Figure 2).
The Faria Serial Bus Pilot and the Faria Speedometer-PerfectPass Cruise instruments are
“end of the bus” instruments. Only the provided four (4) pin connector is to be connected to
the “Faria Bus”. See special instructions for use of the six (6) pin connector on these
instruments.
*NOTE: