Paradyne 7924 manual Glossary, GL-1, COM port, Factory defaults

Glossary

AMI	Alternate Mark Inversion coding format.
BPV	Bipolar Violation. A type of error detected by using a modified bipolar signaling method in
	which a control code is inserted. Used with AMI coding format.
B8ZS	Bipolar with eights and Zeroes Substitution. An encoding scheme for transmitting clear
	channel signals over a T1 line.
CD	Carrier Detect. A signal indicating that energy exists on the transmission circuit.
	Associated with Pin 8 on an EIA-232 interface.
CO	Central Office. As used in this manual, CO denotes any central site as distinguished from
	the Customer Premises site.
COM port	Communications port. A computer's serial communications port used to transmit to and
	receive data from a DCE. The DCE connects directly to this port.
CP	Customer Premises.
CPE	Customer Premises Equipment. Terminating equipment supplied by either the customer or
	some other supplier that is connected to the telecommunications network (e.g., DSUs,
	terminals, phones, routers, modems).
CRC	Cyclic Redundancy Check. A commonly used method of error detection.
CTS	Clear to Send. An EIA-lead standard for V.24 circuit CT 106; an output signal
	(DCE-to-DTE).
CV	Code Violation. This is equivalent to a BPV. Used with HDB3 coding format.
DCE	Data Communications Equipment. The equipment that provides the functions required to
	establish, maintain, and end a connection. It also provides the signal conversion required
	for communication between the DTE and the network.
DSR	Data Set Ready. An EIA-lead standard for V.24 circuit CT 107; an output signal
	(DCE-to-DTE).
DSX-1	Digital Signal cross-connection (of network equipment) at T1 rates.
DS1	Digital Signal level 1. A framing specification for T1 circuits.
DTE	Data Terminal Equipment. The equipment, such as computers, printers, and routers, that
	provide or create data.
DTR	Data Terminal Ready. An EIA-lead standard for V.24 circuit CT 108; an input signal
	(DTE-to-DCE).
E1	A data signaling rate common outside the United States. A wideband interface operating at
	2.048 Mbps defined by CCITT standards G.703 and G.704.
factory defaults	A predetermined set of configuration options for general operation.
FAS	Frame Alignment Signal. A loss of signal (LOS) error detection.
FAW	Frame Alignment Word. A loss of synchronization error detection.

7924-A2-GB20-30 October 1997 GL-1