Raymarine L1250D, Owner'S Handbook Manual

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Appendix B: Using the Auxiliary Junction Box B-1
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Appendix B: Using the Auxiliary Junction Box
The SeaTalk Auxiliary Junction Box is used to connect SeaTalk GPS and
Differential beacon receivers to your HD Series Fishfinder.
Note: With the exception of the Raystar 114, when you use the following Dif-
ferential Beacon Receiver configurations, the receiver must be set to AUTO
MODE in the GPS Set-Up page. Manual selections will not be accepted. Refer
to Section 8.7 for details.
The recommended method of providing position, course over ground and
speed over ground information to the fishfinder displays is by connection to a
SeaTalk GPS. The HD Series Fishfinders are supplied with an Auxiliary
Junction Box, whose main purpose is to make this connection easier. The
junction box has two flying leads, one with a SeaTalk plug for connection to the
display and the other lead is for connection to a 12V power supply (the display
does
not provide power for the GPS).
The following sections detail the connections to the Auxiliary Junction Box for
several different types of GPS, including a beacon receiver if installed. Except
for Raystar 114, the differential beacon receivers used are NRD-2A, Apelco
BR101 and the Autohelm Beacon Receiver.
The connections detailed in the following sections ensure that the GPS will
always operate in SeaTalk mode. Note that the Raystar 112LP and Raystar 120
must be the SeaTalk versions.
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