Raymarine E90W Installation Instructions Manual page 32

Sonar connection
The sonar connection is required for fishfinder applications. The
display is connected to a sonar module (DSM) using a SeaTalk
cable. You will also require a compatible transducer connected to
the DSM unit.
1. Display
2. SeaTalk hs switch
3. DSM unit, e.g. DSM400
32
The E-Series Widescreen display can be used with the following
DSM units:
hs • DSM400
• DSM300
• DSM30
The display can support 1 DSM module.
Sonar connected directly to the display
On smaller systems (with only one display and no other digital
devices) the DSM may be connected directly to the display without
using a SeaTalk hs switch.
Note: You must ensure that the cable ends connected into the
display and DSM have a locking / weather tight mechanism.
Typical DSM system
E-Series Widescreen installation