Paradyne 336x E1 manual Glossary, Activ

Glossary

Activ	Active configuration area. The configuration option set that is currently active for
	the device. Before a configuration option set becomes active, you must save the set
	to the Active configuration area.
adapter	Hardware that provides some transitional function between two or more devices.
address	A symbol (usually numeric) that identifies the interface attached to a network.
agent (SNMP)	A software program housed within a device to provide SNMP functionality. Each
	agent stores management information and responds to the manager's request for
	this information.
aggregate	A single bit stream that combines two or more bit streams.
AIS	Alarm Indication Signal. A signal transmitted instead of the normal signal to
	maintain transmission continuity and to indicate to the receiving device that a
	transmission fault exists.
AMI	Alternate Mark Inversion. A line coding technique used to accommodate the ones
	density requirements of E1 lines.
application	The use to which a device is put.
ASCII	American Standard Code for Information Interchange. A 7-bit code which
	establishes compatibility between data services.
ASCII terminal/printer	Devices that can be attached, either locally or remotely, to the E1 NTU to display or
	print alarm messages.
asynchronous data	Data transmission that is synchronized by a transmission start bit at the beginning
	of a character (five to eight bits) and one or more stop bits at the end.
authenticationFailure trap	An SNMP trap that indicates that the device has received an SNMP protocol
	message that has not been properly authenticated.
AUX port	The auxiliary communications port on the E1 NTU.
AWG	American Wire Gauge. An indication of wire size.
bandwidth	The range of frequencies that a circuit can pass. The greater the bandwidth, the
	more information that can be sent in a given amount of time.
BES	Bursty Errored Seconds. Seconds with more than one, but less that 805 CRC errors.
bipolar signal	A signal in which successive ªonesº (marks, pulses) are of alternating, positive and
	negative polarity, and in which a ªzeroº (space, no pulse) is of zero amplitude.
bit	Binary digit. The smallest unit of information, representing a choice between a one
	or a zero (sometimes called mark or space).
block allocation method	A method of allocating DS0 channels as a group rather than individually.

3360-A2-GB20-20 December 1996 Glossary-1