381298/C
163
RS-232 serial line connection using three wires
An RS-232 serial line connection using three (3) wires and NMEA telegrams is a
common way to connect the SN90 to external devices.
2
3
5
RX
GROUND
2
3
5
TX
TX
GROUND
RX
(CD0801_001_001)
9
6
1
5
5
1
6
9
(CD0801_001_002)
A
Local connection
B
Connection on peripheral device
C
Female 9–pin D-connector
D
Male 9–pin D-connector
Unless otherwise specified, the serial line cable must be
provided by the installation shipyard.
Note that this cable does not support all the signals in the
standard RS-232 specification.
Minimum cable requirements
•
Conductors
: 2 x 4 x 0.5 mm²
•
Screen
: Overall braided
•
Voltage
: 60 V
•
Maximum outer diameter
: Defined by the plugs
If you need to install a very long serial line cable, increase the cross section.
Related topics
Connecting external devices to the Processor Unit using serial interfaces, page 148
IP addressing and UDP port principles, page 212
Setting up the input from a navigation system, page 204
Setting up the input from a Motion Reference Unit (MRU), page 208
Summary of Contents for Simrad SN90
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Page 117: ...381298 C 115 Related topics Installation summary page 65 Installing the transducer ...
Page 236: ...234 381298 C 372915 Clamping frame Simrad SN90 ...
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