Kongsberg Simrad Mk3, Руководство по установке

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110-0001063/A
The maximum length of the Ethernet cable is 100 meters.
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/COM2/COM3/COM4
This serial port is set up for RS422 communication. In order to set up the serial
ports to match your interface requirements, use the dedicated software utility in the
device driver. If you need to change these settings, contact your local dealer or
distributor for advice. You can also contact our support department.
COM5
This serial port is set up for RS232 communication. This serial communication
format is fixed and cannot be changed. This serial port may not be fitted on all
computer models.
Use USB-to-serial converters if additional serial lines are required. Several types are
commercially available. 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.
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.
Dedicated USB ports are provided for the "Wake-up on USB" functionality. "Wake-up
on USB" means that you can turn on the sonar system by activating any USB device
connected to a compatible USB port. The computer BIOS (Basic Input/Output System)
must be modified to support this functionality.
The sockets supporting "Wake-up on USB" are identified on the connector label.
Simrad Installation Manual