- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
Simultaneous encryption of all channels of a multichannel telecommunications link. Note: A single encryption device can be used to encrypt the output signal from a multiplexer.
Industry:Telecommunications
Silicon dioxide (SiO2. ) Note 1: Silica may occur in crystalline or amorphous form, and occurs naturally in impure forms such as quartz and sand. Note 2: Silica is the basic material of which the most common communication-grade optical fibers are presently made.
Industry:Telecommunications
Signals used to indicate, or to indicate and control, the various operating states of the circuits or circuit combinations involved in a particular connection.
Industry:Telecommunications
Signals that enable data systems equipment to function correctly, and possibly to provide ancillary facilities. Synonym housekeeping signals.
Industry:Telecommunications
Signaling which responds to an incoming request for service or change of status.
Industry:Telecommunications
Signaling that uses frequencies or time slots within the bandwidth or data stream occupied by the information channel.
Industry:Telecommunications
Signaling that uses a portion of the channel bandwidth provided by the transmission medium, e.g., the carrier channel, which portion is above the highest frequency used by, and is denied to, the speech or intelligence path by filters. Note: Out-of-band signaling results in a lowered high-frequency cutoff of the effective available bandwidth. 2. Signaling via a different channel (either FDM or TDM) from that used for the primary information transfer.
Industry:Telecommunications
Signaling that is independent of an end-to-end bearer connection, including support for the functions of registration, authentication, and validation.
Industry:Telecommunications
Signaling that ensures error-free transmission of dialed information by returning a unique digit-dependent signal from the far end as each digit is sent over a trunk.
Industry:Telecommunications
Signaling required for supervision of a bearer service between two end points, including support for the functions of call origination, call delivery, and handover.
Industry:Telecommunications
