Lucent Technologies Release 6 ユーザーズマニュアル
DEFINITY Enterprise Communications Server Release 6
Installation and Test for Multi-Carrier Cabinets
Installation and Test for Multi-Carrier Cabinets
555-230-112
Issue 5
May 1998
Glossary and Abbreviations
Page GL-15
CSU
Channel service unit
CTS
Clear to Send
CWC
See
D
DAC
1. Dial access code or Direct Agent Calling
2. See
2. See
data channel
A communications path between two points used to transmit digital signals.
data-communications equipment (DCE)
The equipment (usually a modem, data module, or packet assembler/disassembler) on the
network side of a communications link that makes the binary serial data from the source or
transmitter compatible with the communications channel.
network side of a communications link that makes the binary serial data from the source or
transmitter compatible with the communications channel.
data link
The configuration of physical facilities enabling end terminals to communicate directly with each
other.
other.
data module
An interconnection device between a BRI or DCP interface of the switch and data terminal
equipment or data communications equipment.
equipment or data communications equipment.
data path
The end-to-end connection used for a data communications link. A data path is the combination of
all elements of an interprocessor communication in a DCS.
all elements of an interprocessor communication in a DCS.
data port
A point of access to a computer that uses trunks or lines for transmitting or receiving data.
data rate
See
data service unit (DSU)
A device that transmits digital data on transmission facilities.
data terminal
An input/output (I/O) device that has either switched or direct access to a host computer or to a
processor interface.
processor interface.
data terminal equipment (DTE)
Equipment consisting of the endpoints in a connection over a data circuit. In a connection
between a data terminal and host, the terminal, the host, and their associated modems or data
modules make up the DTE.
between a data terminal and host, the terminal, the host, and their associated modems or data
modules make up the DTE.
dB
Decibel