
Seanet SCU v5
0581-SOM-00002, Issue: 05
32
© Tritech International Ltd.
Glossary
AIF
Originally "Acoustic Interface" but also used to refer to "ARCNET
Interface" in which case it can refer to either the interface port on a
SeaHub or SCU or to the expansion card available for installation into
a computer.
ARCNET
Attached Resource Computer NETwork - a network protocol similar to
Ethernet but with the advantage of working over much longer ranges.
BIOS
Basic Input Output System - the code that loads when a computer is
initially turned on.
DA-15
A 15 pin D shaped connector used mainly for the ARCNET connection
on the SCU and SeaHub.
DC
Direct Current
DE-9
A 9 pin D shaped connector commonly used for serial communications
on computers.
DVI
Digital Visual Interface, a standard connector for connecting from a
computer to a monitor.
Ethernet
A family of computer networking technologies for local area networks
(LANs).
Gemini
Unless specified this can refer to any of the multibeam sonars in the
Gemini range by
Tritech International Ltd
, from the market leading
720is to the world's smallest multibeam - the 720im.
Gemini Hub
A rack mountable device capable of driving 2 Gemini sonars and
multiple serial sensors and outputting the data to a PC network.
LED
Light Emitting Diode
NMEA
National Marine Electronics Association - a USA based standards
association responsible for overseeing electrical and data
communications standards between marine devices (due to become
the IMEA or International Marine Electronics Association in 2012).
PCB
Printed Circuit Board
PSU
Power Supply Unit
RAT
Remote Access Terminal - the detachable front part of the Tritech
Surface Control Unit (SCU) computer. Provides an alternative to using
a keyboard and mouse.
RJ45
Registered Jack wiring scheme commonly used to refer to
the 8 position 8 contact (8P8C) connector wired for Ethernet
communications.
RS232
Traditional name for a series of standards for serial binary data control
signals.
RS485
A standard for defining the electrical characteristics of drivers and
receivers for use in a balanced digital multipoint system (also known
as EIA-485).
RX
Receive (data)