Kongsberg Simrad NISE 3900E, Руководство по установке

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ETH3 Ship network
Use this socket if you want to connect your echo sounder system to the ship’s
local area network (LAN).
USB connectors
The Processor Unit offers several USB interface sockets. The USB sockets can be used
to interface peripheral devices such as USB flash drives, portable hard disks, mouse and
keyboard. USB is normally not used to interface peripheral devices, but this may be
possible if you use USB to Serial converters. Note that most USB-to-serial converters
will introduce some latency. They may also introduce jitter in the communication. The
amount of jitter depends on the quality of the converter.
Remote control connector
SW
A dedicated socket on the rear side of the Processor Unit cabinet allows you to turn
on the computer by means of a remote control switch.
Serial line connectors
Maximum length for an RS-232 serial cable is typically 60 meters with 2400 bps data
rate, however this depends on the cable quality. Always check the cable manufacturers
specifications for the actual "shunt capacitance". A common figure is 47.5 pF/m, which
gives a maximum cable length of about 50 meters.
Even though a standard exist for RS-232 pin configuration, certain manufacturer may
still choose their own connector pins for the various signals used. In order to make the
RS-232 connection to your peripheral device work properly, you must always consult the
relevant instructions provided by the device manufacturer.
Note
Observe that long runs of unshielded cable will pick up noise easily. This is because
the RS-232 signals are not balanced.
COM1
This serial port is set up for RS422 communication. You can change to a different
serial communication format in the computer BIOS. If you need to change these
settings, contact your local dealer or distributor for advice. You can also contact
our support department.
COM2
This serial port is set up for RS422 communication. You can change to a different
serial communication format in the computer BIOS. If you need to change these
settings, contact your local dealer or distributor for advice. You can also contact
our support department.
Simrad Echo sounder system Installation Manual