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UM0239

Commonly used terms

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Commonly used terms

Table 1 describes some of the commonly used terms regarding Power Line Communication

and other terms used in this document:

Table 1.

Commonly used terms

Term

Description

FCS

Frame Check Sequence. An error detection scheme that uses parity bits generated

by polynomial encoding of digital signals.

FEC

Forward Error Correction. A system of error control for data transmission wherein the

receiving device has the capability to detect and correct any character or code block

that contains less than a predetermined number of symbols in error. FEC is

accomplished by adding bits to each transmitted character or code block, using a

predetermined algorithm.

MAC

Medium Access Control. A service feature or technique used to permit or deny use of

a communication medium.

Mains

The electrical network that supplies homes and businesses with power.

Ping

Program that measures the time elapsed between the transmission of multiple

packets to a remote device and the return to origin (real meaning). In this document,

the term ping is used to describe a packet exchange process between a Master

device and one or more Slave devices, collecting statistical data about the integrity of

packets.

PLC

Power Line Communication. Communication performed between two or more nodes

of the electrical network.

PLM

Power Line Modem. A device able to transmit and receive information across the

electrical network. To ensure reliability of communication, digital data are transformed

modulating a carrier signal in transmission and demodulating such a carrier in

reception.

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