Paradyne 3910 Constant carrier mode, Control Channel CC, Control modem, Controlled carrier mode

COMSPHERE 3900 Series Modems

constant carrier mode	The modem transmits a carrier signal constantly, regardless of
	RTS.
Control Channel (CC)	The diagnostic interface between an NMS and a network device.
control modem	A control modem polls downstream tributary modems across the
	analog channel.
controlled carrier mode	The modem's transmitter turns on and off in response to RTS. This
	mode is used by multipoint tributary modems.
Customer 1	A user-defined configuration area containing customized
	configuration options for a specific application.
Customer 2	A user-defined configuration area containing customized
	configuration options for a specific application.
data carrier	A continuous frequency signal that can be modulated by another
	signal that contains information to be transmitted.
data compression	The elimination of empty fields, redundancies, and gaps in order to
	reduce storage capacity needs and the amount of data to be
	transmitted. Anything that is eliminated is restored after the data is
	received.
Data mode	One of two modem operating modes. When in Data mode, the
	modem transmits and receives data instead of accepting
	commands.
DB-25 connector	A 25-pin connector that is used to connect a cable which enables
	communication between two devices.
dBm	A decibel referenced to one milliwatt. This unit measures relative
	signal power.
DCE	The equipment (Data Communications Equipment or Data Circuit
	Terminating Equipment) that provides the functions required to
	establish, maintain, and end a connection. This equipment also
	provides the signal conversion required for communication
	between the DTE and the telephone line.
DCP	Diagnostic Control Panel. The face of the modem that
	continuously provides status information about the modem's
	operation and allows an operator to manage its operation. This is a
	generic term used for both the standalone and carrier-mounted
	models. See SDCP.
demodulation	The process of recovering data from a modulated carrier wave.
DevHS	Device Health and Status. A detailed account of device alarms.
Diagnostic Channel (DC)	The diagnostic interface between two network devices, used to
	extend the NMS diagnostics to downstream devices.

GL-4 November 1996 3910-A2-GN32-30