MERLIN LEGEND Communications System Release 6.1 | Issue 1 | |
Network Reference |
| August 1998 |
Glossary |
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ISDN terminal | A type of data station that includes an ISDN terminal | |
adapter data | adapter as its DCE. It may also include an MLX telephone | |
station | for simultaneous voice and data (ISDN terminal adapter | |
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| extension jack modules for digital transmission of data over | |
| a DS1 facility. |
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J
jack | Physical connection point to the system for a telephone, |
| line/trunk, or other device. Also called “port.” |
K
kbps | (kilobits per second) |
Key mode | One of three modes of system operation, in which the |
| system uses personal lines on line buttons for outside calls, |
| with a separate interface (ICOM buttons) for inside calling. |
| See also Behind Switch mode and Hybrid/PBX mode. |
L
LAN | (local area network) Arrangement of interconnected |
| personal computers or terminals, sometimes accessing a |
| host computer, sometimes sharing resources such as files |
| and printers. |
LDN | (Listed Directory Number) |
LED | |
| light when voltage is applied; light on a telephone. |
line | Connection between extensions within the |
| communications system; often, however, used |
| synonymously with trunk. |
line and trunk | Assignment of lines and trunks connected to the system |
assignment | control unit to specific buttons on each telephone. |
line coding | Pattern that data assumes as it is transmitted over a |
| communications channel. |
line compensation | Adjustment for the amount of cable loss in decibels (dB), |
| based on the length of cable between a 100D module and |
| a channel service unit (CSU) or other |
| point. |
line/trunk | Refers to inside system lines and outside lines/trunks in |
| general terms. See also line and trunk. |
