Raymarine DSM300 Install Manual page 21

Chapter 1: DSM300 Installation 21
Configuring the DSM300 with C Series Displays
The C Series system uses cables with a round 4-pin twist-lock network connector.
A 3m-long C Series cable is included with your DSM300. If a longer cable is
required, an optional 10m C Series cable (part number E65011) is available from
Raymarine.
DSM300
C Series Display
R G Y
4-pin to 4-pin C Series Cable
Figure 1-13: Configuring a New C Series System
The product that the DSM300 replaces—the DSM250 sounder module—has a
triangular 3-pin network connector. If you are replacing an old DSM250 with a
new DSM300 in an existing C Series network, you will need to install the supplied
2
4-pin to 3-pin hsb adapter. Connect the 4-pin end of the adapter to the DSM300
and then connect the 3-pin end of the DSM cable to the DSM300.
Unlike the DSM250, however, the DSM300 network connection is internally
terminated. When replacing a DSM250 with a DSM300, DO NOT USE
2
the hsb Inline Terminator that was connected to the DSM250.
DSM300
C Series Display
R G Y
2
4-pin to 3-pin hsb
R69081
adapter (supplied)
4-pin to 3-pin DSM cable
Figure 1-14: Replacing a DSM250 in an Existing C Series System