Raymarine L1250D, Owner'S Handbook Manual

Page: 47 / 246

Chapter 2: Installation 2-15
Dis
p
la
y U
nit
Con
ne
ct
ions
2.7 Display Unit Connections
The rear of the HD Series LCD display provides the following connection
sockets:
• HSB, in/out connector for connecting to the DSM250 and additional
hsb 2
Plus Series displays (such as a chartplotter, radar, or second fishfinder dis-
play).
• NMEA Output, for NMEA data output in an integrated system.
• Power/NMEA Input , for 12 V, 24 V or 32 V DC power connection, two
NMEA 0183 inputs and one RF ground (screen) connection.
• Transducer connection, not used.
• SeaTalk , for SeaTalk data input and output and connecting to additional
Plus Series displays (such as a chartplotter, radar, or second fishfinder dis-
play).
Note: The ‘Transducer’ connector is not used with the HD Series Fishfinders.
The transducer is connected to the DSM250 sounder module.
Figure 2-8: HD Series Fishfinder Display Connector Panel
The following sections detail the display unit connectors used when installing
the LCD Display. The remaining connector details are provided in
Section 2.9 .
DC Power and NMEA Connection
The HD Series Fishfinder is intended for use on ships’ DC power systems
rated from 10.7 V to 32 V.
The power connection to the display should be made at either the output
of the battery isolator switch or at a DC power distribution panel.
Raymarine recommends that power is fed directly to the display via its
own dedicated cable system and MUST be protected by a thermal circuit
breaker or fuse, installed close to the power connection.
Use a 6 amp fuse for 12V systems or 4 amp fuse for 24/32V systems.
HSB
PO
WER/NMEA
TRANSDUCER
SeaT
alk
GR
Y
NMEA OUT
D6264-1
81213_1.book Page 15 Monday, March 17, 2003 1:14 PM