Raymarine ST50 plus User Manual download pdf (Page 10)

ST50

Plus

Tridata

and Repeater Operation and Installation Handbook

Chapter 2: Transducer Installation

.6 Ring Connection

Chapter 2: Transducer Installation

Installations with a large number of instruments on a SeaTalk bus may require

a second ring-main connection to the power supply breaker to prevent

excessive voltage drops. Whether a second ring main is required can be

determined from the following:

Cable run

upto

10m (33ft)

2.1 Connection to the Control Head

The ST50 PlusTridata is supplied with depth and speed transducer cable

tails and connectors. These cable tails plug into the mating connectors fitted

to the 14m

(45ftI

depth and speed transducer cables.

Single connection: 13 instruments maximum

Second connection: 26 instruments maximum

Cable run

upto

20m (66ft)

Single connection:

7 instruments maximum

Second connection:

13 instruments maximum

The second ringmain should be connected to the spare lead on the last

instrument in the chain and directed back to the circuit breaker.

.7 Connection to SeaTalk Compatible Autopilots

the installation includes a SeaTalk compatible Autopilot the ST50 Plus

instruments may be connected to the SeaTalk bus at any point. No independ

ent connection to the

12V

power supply is necessary as the instruments

receive power from the Autopilot course computer.

To autopilot

SeaTalk BUS

Connection

To any further

ST50 Instruments

or Autopilot

Control Units

0,134.

2.2 Transducer Selection

The type of speed transducer used is dependent on the hull material. The

following list shows the appropriate transducer for hull type.

Transducer Type

Hull Material

Speed

2092 Through Hull Plastic:

ZllGThrough

HullBronze:

Depth

ZO91 Through Hull Plastic:

Lll8

nrougn

Hull

Bronze:

Z120

Retractable through hull:

GRP (Glass Reinforced Plastic), Steel and

Aluminium

Wood

GRP (Glass Reinforced Plastic), Steel and

Aluminium

Wood

GRP (Glass Reinforced Plastic), Steel and

Aluminii

1 ... 9 10 11 ... 25

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Raymarine ST50 plus User Manual Page 10

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