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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
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.