LINL
Issue 1.0 May 2003
413
LATA
Local access and transport area
lb
Pound
LBO
Line buildout
LDN
Listed directory number
LDS
Long-distance service
LEC
Local exchange carrier
LED
See
light-emitting diode (LED)
on page 413.
light-emitting diode
(LED)
A semiconductor device that produces light when voltage is applied. LEDs provide a
visual indication of the operational status of hardware components, the results of
maintenance tests, the alarm status of circuit packs, and the activation of telephone
features.
lightwave transceiver
Hardware that provides an interface to fiber-optic cable from port circuit packs and
DS1 converter circuit packs. Lightwave transceivers convert electrical signals to light
signals and vice versa.
line
A transmission path between a communications system or CO switching system and
a voice terminal or other terminal.
line appearance
See
appearance
on page 389.
line buildout
A selectable output attenuation is generally required of DTE equipment because T1
circuits require the last span to lose 15–22.5 dB.
line port
Hardware that provides the access point to a communications system for each
circuit associated with a telephone or data terminal.
link
A transmitter-receiver channel that connects two systems.
link-access procedure
on the D-channel (LAPD)
A link-layer protocol on the ISDN-BRI and ISDN-PRI data-link layer (level 2). LAPD
provides data transfer between two devices, and error and flow control on multiple
logical links. LAPD is used for signaling and low-speed packet data (X.25 and mode
3) on the signaling (D-) channel and for mode-3 data communications on a bearer
(B-) channel.
LINL
Local indirect neighbor link
Содержание Communication Manager Contact Center
Страница 4: ......
Страница 52: ...Automatic Call Distribution ACD basics 52 Communication Manager Guide to ACD Call Centers...
Страница 280: ...ACD contact center features 280 Communication Manager Guide to ACD Call Centers...
Страница 434: ...ZCS 434 Communication Manager Guide to ACD Call Centers...