AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual page 404

Glossary
intercom buttons
interface
IROB protector
IS II/III
ISDN
ISDN terminal
adapter
ISDN terminal
adapter data station
J
jack
See ICOM buttons.
Hardware and/or software that links systems, programs, or
devices.
(In-Range Out-of-Building protector) Surge-protection
device for off-premises telephones at a location within
1000 feet (305 m) of cable distance from the control unit.
(Integrated Solution II or Integrated Solution III) Set of
UNIX System-based applications that augments and
provides additional services using the system.
(Integrated Services Digital Network) Public or private
network that provides end-to-end digital connectivity for all
services to which users have access by a limited set of
standard multipurpose user and network interfaces ;
provides digital circuit-switched or packet-switched
connections within the network and to other networks for
national and international digital connectivity.
A type of data communications equipment that transmits
digital signals over digital telephone company facilities, for
example, PRI. A digital data station uses an ISDN Terminal
Adapter (such as the ExpressRoute 1000 or ISDN 7500B
data module) as its DCE
A type of data station that includes an ISDN terminal
adapter as its DCE. It may also include an MLX telephone
for simultaneous voice and data. These data stations
connect to MLX extension jack modules for digital
transmission of data over a DS1 facility.
Physical connection point to the system for a telephone,
trunk. or other device. Also called "port."
Maintenance and Troubleshooting
GL–19