63
Glossary
AAAA
Glossary A
A
ARQ Automatic Repetition reQuest. An error-control method for
data transmission that uses acknowledgments and timeouts to
achieve reliable data transmission over an unreliable service. If
the sender does not receive an acknowledgment before the
timeout, it usually re-transmits the frame/packet until the
sender receives an acknowledgment or exceeds a predefined
number of re-transmissions.
B
BAM Bridge Alert Management. Overall concept for management,
handling and harmonized presentation of alerts on the bridge.
C
CAM Central Alert Management. BAM compliant system for
centralized presentation and handling of alerts on the bridge.
CAN Controller-Area Network. A message based protocol designed
to allow microcontrollers and devices to communicate with
each other within a vehicle without a host computer.
D
DE A command used in a telex message to insert an answer-back
string identifying the sender of the message. The string should
normally contain the call sign.
DSC Digital Selective Calling. Primarily intended to initiate ship-to-
ship, ship-to-shore and shore-to-ship radiotelephone and
MF/HF radiotelex calls. Each DSC-equipped ship, shore station
and group is assigned a unique 9-digit Maritime Mobile Service
Identity. DSC distress alerts, which consist of a preformatted
distress message, are used to initiate emergency
communication with ships and rescue coordination centers.
To Next Page
Loading...
Need help?
General
