Instruction manual

MERLIN LEGEND Communications System Release 5.0
Installation
555-650-140
Issue 1
June 1997
Glossary
Page GL-12
D
D4 framing format Framing format consisting of a sequence of individ-
ual frames of 24 eight-
bit slots and one signal bit
(193 bits) in a 12-frame superframe. See also
ESF .
Data-channel See D-channel
.
data communica-
tions equipment
See DCE
.
data hunt group See DHG
.
data module See ISDN terminal adapter
.
data rate See
bps .
data station Special type of extension where data communica-
tions take place; includes
DTE and DCE . Sometimes
a telephone is also part of a data station.
data terminal An input/output (
I/0 ) device (often a personal com-
puter) that can be connected to the control unit via
an interface.
data terminal
equipment
See DTE
and data terminal.
DCE (data communications equipment) Equipment such
as
modem s or data modules used to establish, main-
tain, and terminate a connection between the system
and data terminal equipment (
DTE ), such as print-
ers, personal computers, host computers, or network
workstations.
D-channel (Data-channel) 64-kbps channel that carries signal-
ing information or data on a
PRI or 16-kpbs channel
to carry signaling information on
BRI .