Paradyne 317x E1 manual Iso

Glossary

frame relay	A switching interface that is designed to get frames from one part of the network to
	another as quickly as possible.
framing	A technique that separates bits into identifiable groups.
Generic-Interface Extension	An extension to MIB II that defines additional objects for control of generic
MIB	interfaces in MIB II.
Get command (SNMP)	Read-only access to SNMP MIB objects.
ground	A physical connection to earth or other reference point.
HDB3	High Density Bipolar Three Zeros Substitution. A line coding technique used to
	accommodate the ones density requirements of E1 lines.
HDLC	High-level Data Link Control. A communications protocol defined by the
	International Standards Organization (ISO).
host	A computer system used for application processing on a network.
Hz	Hertz. A unit of frequency that equals one cycle per second.
ICMP	Internet Control Management Protocol. The protocol that enables in-band control,
	diagnostic, and error messages to be passed between nodes in an IP internetwork.
ID branch	Identity branch of the E1 DSU/CSU menu tree.
interface	A shared boundary between functional units.
Internet	The worldwide interconnected collection of networks that predominantly use the
	TCP/IP protocol.
internetwork	An interconnected collection of networks (also called an internet).
IP address	Internet Protocol address. The address used by the SNMP manager to access the
	device.
ISO	International Standards Organization.
kbps	Kilobits per second (thousand bits per second).
LAN	Local Area Network. A network that spans a small geographic area (e.g., a
	building).
LCD	Liquid Crystal Display. Sealed glass plates containing liquid crystal material. When
	voltage is applied, the amount of light passing through the plates is altered so that
	messages may be displayed.
LCP	Link Control Protocol.
LED	Light-Emitting Diode. A status indicator that glows in response to the application of
	a voltage.
link	A communication path between two network nodes.
link layer protocol	The protocol that regulates the communication between two network nodes.
link trap	A trap that identifies the condition of the communications interface (linkDown or
	linkUp traps).
LLB	Line Loopback. Loops the received signal on the network interface back to the
	network without change.
LOF	Loss Of Frame. The inability to maintain frame synchronization.
LOFC	Loss Of Frame Count. A count of the number of LOFs declared.
loopback test	A test that verifies a device's operation by connecting the device's output to the
	device's input.
LOS	Loss Of Signal. The E1 line condition where there are no pulses.

3170-A2-GB20-20 December 1996 Glossary-5