Panasonic KX-TDA0480 Installation Manual page 168

Glossary
Line data
Line data is a category of office data that includes both terminal and trunk data.
MCU
Multipoint Control Unit. A bridging or switching device used in support of multipoint
videoconferencing and supporting as many as 28 conference sites. The devices may be in
the form of CPE (Customer Premises Equipment) or may be embedded in the WAN in
support of carrier-based videoconferencing services.
M-law
The PCM voice coding and compression standard used in Japan and North America. A
PCM encoding algorithm where the analogue voice signal is sampled eight thousand times
per second, with each sample being represented by an eight bit value, thus yielding raw
64kbps transmission rate. A sample consists of a sign bit, a three-bit segment specifying a
logarithmic range, and a four-bit step offset into a range. All bits of the sample are inverted
before transmission.
Maintenance Console Software
The Maintenance Console Software (MCS) runs on a conventional PC type computer under
the Windows 95 or Windows 98 or Windows NT operating system. The software provides
a graphical user interface (GUI) for installing and maintaining the KX-TDA0480 and for
configuring the KX-TDA0480 internal network features. MCS connection with the KX-
TDA0480 is accomplished directly using an RS-232C cable or remotely over a LAN
connection.
Numbering plan
In a communications network, a numbering plan allocates specific numeric codes to
identify each subscriber line, special lines, trunk lines, etc. Numbering plans can be divided
into the numbering system and number assignments. The numbering system indicates the
number of digits to be assigned and the basic scheme of number assignment. The
assignment of specific codes is performed according to the numbering system.
Numbering plan data
Numbering plan data is a category of office data. It includes both numbering plan and
routing information.
Office data
Generic name of configuration data set and stored in the KX-TDA0480. Generally, office
data is divided into four categories: equipment data, numbering plan data, line data, and
operation data. Office data is configured during unit installation and general maintenance
using the Maintenance Console software. Unit configuration files can also be edited directly
and then can be uploaded directly to a unit.
168 Installation Manual