Raymarine stand-alone master instrument - Manual (Page 14)

Chapter 2: Transducer Installation 11
Chapter 2: Transducer Installation
2.1 Connection to instrument
The depth and speed transducers are supplied with 10m (32.5ft) of cable.
These cables are fitted with female spade connectors that plug directly
into the back of the ST30 Bidata instrument.
+
+
+
+
SEATALK
SP
EE
D
D684
D
EP
TH
Speed Depth
2.2 Transducer type
The ST30 Bidata system is supplied (as standard) with plastic through hull
transducers. These are suitable for use with Glass Reinforced Plastic
(GRP), Steel and Aluminium hulls.
Alternative transducers are available for wooden hull and transom mount
installations.