Sentinel BM-50 - Electrical Connection Overview

3. Install the device back to the bracket inserting the bottom clips first (1) and pushing it towards the
bracket at the top (2).
2.2 Electrical connection overview
Device features 5 external connectors (cables). From left to right there are:
1. External GPS antenna connection (Standard and Pro version),
2. 5-pin M12 CAN2 connector (Pro version),
3. 18-pin Main cable (Standard and Pro version) or 10-pin Main cable (Lite version),
4. RJ45 ethernet connector (Pro version),
5. 5-pin M12 CAN1 (NMEA2000) connector (Standard and Pro version).
Main device connection is achieved through an 18 wire main cable harness (or 10 wire in case of Lite version).
Power is supplied through red and black wires of the harness; individual wire functions are listed in the table below.
2.3 Wire color code description
Color
Function
Description
versions
Yellow
VIN2
Voltage Input 2 - Engine battery (port)
Lite , Standard, Pro
Blue
Shore
Digital input 1 - Shore power**
Standard, Pro
Red
VIN1/Supply
Voltage input 1 - Service battery + BM-50 power supply
Lite , Standard, Pro
Green
Door
Digital input 3 - Door sensor**
Lite, Standard and Pro
Black
GND
Ground
Lite , Standard, Pro
Purple
Bilge
Digital input 2 - Bilge sensor**
Lite , Standard, Pro
Brown
VIN4
Voltage input 4 - general purpose
Standard and Pro
5