Paradyne COMSPHERE
3610 User Manual page 95

ac Alternating current.
ACCUNET See ASDS.
active core The core that is transmitting data. For example, the DBM is the active core when the unit is in Backup
mode. In the case of a DBM-D, DBM-I, DBM-S, or DBM-V, the primary core and the active core are the
same.
ADp Advanced Diagnostic protocol. An enhanced diagnostic communication protocol used with the 6700 and
6800 Series NMS and with certain front panel diagnostic functions.
aggregate rate The sum of the DTE rates.
alarm An abnormal condition affecting modems, multiplexers, and data services units, usually requiring
attention. Major alarms indicate a service disruption; minor alarms are less severe, but are indications of a
developing problem.
alternate port The unused Port 1, either the V.35 or the EIA-232 interface, that provides an aggregate data path for an
external dial backup unit.
analog signal A type of signal composed of continuously variable values, used to transmit voice or data over telephone
lines.
ANSI American National Standards Institute. Sets standards for the US computer industry. ANSI participates in
defining network protocol standards.
apl Analog Private Line. Dedicated private line; not available for dialing.
ASDS ACCUNET Spectrum of Digital Services. An AT&T network service offering the alternatives of
fractional T1, 9.6, 56 or 64 kbps (clear channel) digital, and analog access to a digital core network.
ASPEN Asynchronous-to-Synchronous with Prism ENhancements chip. This is a chip upgrade that includes an
async/sync converter to support the Single-Port Async/Sync feature, which also supports the same
functionality as earlier versions of the 3600 Series DSU.
async terminal This feature allows a device to be controlled from an async (asynchronous) terminal like an ASCII
terminal. When enabled, the async terminal menus emulate the front panel without being limited by the
2-line, 16-character liquid-crystal display (LCD), which can accommodate only three selections per
screen.
asynchronous A data transmission that is synchronized by a transmission start bit at the beginning of a character (five to
transmission eight bits) and one or more stop bits at the end.
3610-A2-GB46-60
Glossary
December 1996 Glossary-1