DCP Series Telcon Message Manual - Public Support Login - Unisys

Glossary
A
absolute element
A complete program suitable for execution by the Exec operating system. Absolute
elements normally occur as output from a collection of relocatable elements.
AGPPER
PP state-item (abort of the line-module software) detection and reporting in AGSYSTRN.
AGSYSRTN
See global common system subroutines.
ASCII
Acronym for American Standard Code for Information Interchange (pronounced ASKEY),
a 7-bit character code that defines 128 standard alphanumeric characters. ASCII is an
industry standard that defines the codes for a character set to be used for information
interchange between equipment of various manufacturers. It is the standard for digital
communication over telephone lines. (This term is not spelled out in Unisys
documentation.)
Asynchronous Balanced Mode (ABM)
An operational mode in which either of two stations can initiate transmission without
receiving permission from the other station.
Asynchronous Line Switch Module (ALSM)
A line switching device attached to an asynchronous control line.
Automatic Data Rate Detection (ADRD)
A Telcon feature that detects the line speed of an asynchronous terminal by sampling the
first input character.
B
Binary Synchronous Communication (BSC)
A protocol developed by IBM for synchronous transmission of binary coded data. One of
the first protocols for transparent text transmission. Same as bisync.
BSC
See IBM Binary Synchronous Communication protocol.
7436 0728–303 Glossary–1