Installation guide
Table Of Contents
- Contents
- Safety notices
- Important information
- Chapter 1: Installation
- Chapter 2: System and transducer connections
- Chapter 3: Maintenance and troubleshooting

18 Raymarine DSM400 Digital Sounder Module
2.3 Transducer connections
The following diagram shows the layout of the transducer connections within your DSM400 Digital Sounder Module:
WARNING: Transducer cable
Removing the transducer cable(s) from the unit while powered ON can cause sparks. Only remove a
transducer cable after the unit has been powered OFF.
POWER
GROUND
ReBr Gr Wh
TRANSDUCER 1 HIGH
SHIELD
TRANSDUCER 2 LOW
SHIELD
TRANSDUCER 1 LOW
SHIELD
TRANSDUCER 2 HIGH
SHIELD
G
IdT˚
G
IdT˚
Earth/
Ground
Speed
Transducer
Depth 1 Depth 2
Red
Screen
Black
Screen + Brown
Green
White
Red
Black
Screen
Blue
Black
Screen
Yellow
Black
Screen
Blue
Black
Screen
Yellow
Orange
White
Screen + Brown
Orange
White
Screen + Brown
TRANSDUCER 2 HIGH
CUSTOM CONFIG.
TRANSDUCER 2 LOW
TRANSDUCER 1 HIGH
TRANSDUCER 1 LOW
D10982-2
2
3
1
5
4
Watertight bungs supplied with your unit
should be fitted to any unused connectors
DSM400 Installation Guide.book Page 18 Tuesday, November 4, 2008 4:53 PM