Lucent Technologies 555-661-150 manual Csu, CTI link, Cyclic redundancy, Check

MERLIN LEGEND Communications System Release 6.1		Issue 1
Network Reference 555-661-150		August 1998
Glossary
		Page GL-8
CSU	(channel service unit) Equipment used on customer
	premises to provide DS1 facility terminations and signaling
	compatibility.
CTI link	(Computer Telephony Integration) link. A
	hardware/software feature that is part of the PassageWay
	Telephony Services application. It allows the use of Lucent
	Technologies-certified software applications on a LAN
	running Novell NetWare software in a Hybrid/PBX mode
	system. These applications may provide special features
	for client control of such calling activities as power dialing.
	See also screen pop.
cyclic redundancy	See CRC.
check

D

D4 framing format	Framing format consisting of a sequence of individual
	frames of 24 eight-bitslots and one signal bit (193 bits) in a
	12-frame superframe. See also ESF.
Data-channel	See D-channel.
data	See DCE.
communications
equipment
data module	A type of ISDN terminal adapter that acts as the DCE at a
	data workstation that communicates over high-speed digital
	facilities.
data rate	See bps.
data station	Special type of extension where data communications take
	place; includes DTE and DCE; sometimes a telephone is
	also part of a data station.
data terminal	An input/output device (often a personal computer) that can
	be connected to the control unit via an interface.
data terminal	See DTE and data terminal.
equipment
data workstation	Special type of extension where data communications take
	place; includes DTE and DCE; sometimes a telephone is
	also part of a data workstation.
DCE	(data communications equipment) Equipment such as
	modems or ISDN terminal adapters used to establish,
	maintain, and terminate a connection between the system
	and data terminal equipment (DTE), such as printers,
	personal computers, host computers, or network
	workstations.
DCP	(Digital Communications Protocol) AT&T proprietary
	protocol to transmit digitized voice and data over the same
	communications link.