HP 3162 manual Glossary, GL-1

Glossary

1in8 Test	A test pattern consisting of a one (1) followed by seven zeros (on the network only).
10BaseT	A 10-Mbps Ethernet LAN that works on twisted-pair wiring.
3000 Series Carrier	A rack-mounted device containing 17 slots in which to place circuit cards.
ACCULINK	A product family and a registered trademark of Paradyne.
ACO	Alarm Cut-off command. A command for carrier-mounted CSUs that forces a deactivation
	of the alarm relay on the 3000 Series Carrier.
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.
AIS	Alarm Indication Signal. An all ones signal transmitted to maintain transmission continuity
	and to indicate to the receiving terminal that a transmission fault exists at either the
	transmitting terminal or upstream of the transmitting signal. Sometimes referred to as Blue
	Alarm.
AMI	Alternate Mark Inversion. A line coding technique used to accommodate the ones density
	requirements of E1 or T1 lines.
ANSI	American National Standards Institute. A member of ISO, ANSI accredits and implements
	standards.
application	The use to which a device is put.
ASCII	American Standard Code for Information Interchange. The standard for data transmission
	over telephone lines. A 7-bit code establishes compatibility between data services. The
	ASCII code consists of 32 control characters (nondisplayed) and 96 displayed characters.
ASCII	A device that can be attached, either locally or remotely, to a DSU/CSU to display or print
terminal/printer	alarm messages.
asynchronous data	Data that is formatted so it is synchronized by a transmission start bit at the beginning of a
	character and one or more stop bits at the end.
authenticationFailure	An SNMP trap that indicates that the device has received an SNMP protocol message that
trap	has not been properly authenticated.
Auxiliary Backplane	An 8-slot backplane that fits over one half of the open section of the 3000 Series Carrier.
	This is a passive assembly that provides all interface connectors.
AWG	American Wire Gauge. An indication of wire size. The heavier the gauge, the lower the
	AWG number, and the lower the impedance.
B8ZS	Bipolar 8 Zero Substitution. Encoding scheme for transmitting clear channel signals over a
	T1 line.
bandwidth	The range of frequencies that can be passed by a transmission medium, or the range of
	electrical frequencies a device is capable of handling.

3162-A2-GB20-40 August 2000 GL-1