Oki BV1250, Руководство по установке

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Oki BV1250 Installation Guide APPENDICES
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IP Address
A number used to identify the location of a host device. It is expressed
in numeric dot notation (e.g. 202.203.27.31).
Local Area Network
A shared or switched medium, peer-to-peer communications network
which may include inter-networks composed of LANs connected by
bridges or routers.
Jitter
Jitter refers to fluctuations in transmission delay time. In the case of
voice data, conversations are packaged into packets (IP packetization)
and transmitted. Individual packets can take different routes through
the varied networks that comprise the Internet. When the time interval
for the arrival of the packets is not constant the timing fluctuations
that may occur are referred to as “jitter”.
Line data
Line data is a category of office data that includes both terminal and
trunk data.
M-law
The PCM voice coding and compression standard used in Japan and
North America. A PCM encoding algorithm where the analog 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 operating system. The software
provides a graphical user interface (GUI) for installing and
maintaining BV1250 units and for configuring BV1250 internal
network features. MCS connection with BV1250 units 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.