Chapter 2: Installation Procedures 6-2-5
ST290 Instrument System Owner’s Handbook
System power
DO NOT CONNECT POWER to an ST290 system other than by the
methods described under Making power connections on page 6-2-27.
If a SeaTalk bus is already installed on the vessel, use SeaTalk cable to
extend the bus to the existing products from the intended locations of the
ST290 analog products. In such a case, the power source for the existing
SeaTalk bus will also supply power for the entire ST290 system.
2.3 Cable preparation
In an ST290 system, cables not already fitted with molded connectors
must be correctly prepared for connection. To do this, use either the
General connections procedure (for connection to spade connectors or
junction box) or the Connections to spring retention connectors
procedure below, as appropriate.
General connections
The method of preparing a cable for connection to spade connectors or to
the connector block in the Wind transducer junction box, is shown in
Figure 2-3 .
Figure 2-3: Preparing cable for spade connectors or junction box
Prepare the cable as described in Figure 2-3 then, ensuring wire strands
donot extendbeyond therear ofthe connectorinsulation,inserteachwire
into the connector. An example showing a spade connector is shown in
Figure 2-4 . Secure the wires as follows:
• Crimp spade connectors.
• Tighten connector block screws.
D6049-1
a
56 mm
Dimension a
Shield: not applicable
SeaTALK
2
red and black wires: dimension a = 3 mm
All other insulated wires: dimension a = 6 mm
81183_2 S6.book Page 5 Wednesday, May 7, 2003 11:27 AM
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