Cisco Systems OL-8155-01 Manuel d'utilisateur télécharger pdf (Page 129)

GL-5

Cisco IPICS Server Installation Guide

OL-8155-01

Glossary

DS0

digital service zero (0). Single timeslot on a DS1 (also known as T1) digital

interface—that is, a 64-kbps, synchronous, full-duplex data channel, typically

used for a single voice connection on a PBX.

dynamic regrouping

A trunking system feature that allows multiple radios to be placed upon a

specific talk group without manual manipulation of the programming of the

radios. Dynamic regrouping is initiated through a system control console and

transmitted to the radio via the trunking systems control channel.

E&M

recEive and transMit (or ear and mouth). The E&M interface provides voice

signals from radio channels, which are then mapped to IP multicast or unicast.

The E&M interface provides the most common form of analog trunking.

1. Trunking arrangement that is generally used for two-way switch-to-switch or

switch-to-network connections. Cisco's analog E&M interface is an RJ-48

connector that allows connections to PBX trunk lines (tie lines). E&M also is

available on E1 and T1 digital interfaces.

2. A type of signaling that is traditionally used in the telecommunications

industry. Indicates the use of a handset that corresponds to the ear (receiving)

and mouth (transmitting) component of a telephone.

encipher

To convert plain text into an unintelligible form by using a cipher.

encode

To modify information into the required transmission format.

encryption

Application of a specific algorithm so as to alter the appearance of data and make

it incomprehensible to unauthorized users.

event

An active VTG in the Cisco IPICS solution.

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Cisco Systems OL-8155-01 Manuel d'utilisateur Page 129