Paradyne 1862, Руководство пользователя

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1862 VoIP IAD User’s Guide
bridge:
A device that links local or remote area networks together, forwarding packets based on a
MAC address (compare with router).
broadband:
Communication channels operating at transmission rates in excess of 64 Kbps.
broadcast:
The simultaneous transmission to two or more communication devices.
BT
:
Burst Tolerance. The limit parameter of the Generic Cell Rate Algorithm (GCRA).
buffer:
A temporary storage used to compensate for a difference in the rate of flow of data.
bus:
An assembly of conductors that carries signals to and from devices along its path and serves as a
common connection for a group of related devices.
busy:
A device’s operational state, when the device is occupied with processing a call.
Byte:
Eight bits arranged in sequence
channel:
A bi-directional communications pathway between a host server and a client.
CHAP:
Challenge-Handshake Authentication Protocol. A PPP protocol to ensure authentication of
the connection between two devices.
circuit:
A logical connection between two devices.
CO:
Central Office, the local telephone exchange, also called PSTN.
COM port:
A computer’s serial communications port.
CPE:
Customer Premises Equipment. Equipment used by the end-user.
cross talk:
Undesired coupling of a signal from one circuit, or channel, to another.
data rate:
The speed measured in bits per second that data is transferred over the carrier line.
Default:
A pre-defined original value.
demodulation:
The recovery, from a modulated carrier, of a signal.
DHCP server:
A server that dynamically allocates network addresses and delivers configuration
parameters to hosts.
DHCP:
Dynamic Host Configuration Protocol. A TCP/IP protocol that enables a network connected
to the Internet to automatically assign a temporary IP address to a host when the host connects to the
network.
digital signal:
A discrete or discontinuous signal where the states are discrete intervals apart, such
as +10 volts and –10 volts. These states are then represented by the binary digits 0 and 1.
digital: loopback test:
A test that connects the device’s receiver output back to the transmitter
input. This test will disrupt the transmission of primary data.
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