A state in which the customer installation (CI) presents a high-resistance path at the network interface. [T
1. Rpt37-1994]

1. Pertaining to the operation of a functional unit when under the direct control of the system with which it is associated.
Note 1: On-line units are available for immediate use on demand by the system without human intervention.
Note 2: On-line units may not be independently operated.
2. Pertaining to equipment that is connected to a system, and is… (Read More →)

A particular form of authentication information, certified by a trusted authority, which may be used for authentication following direct interaction with the authority [10181-2].

[A] cryptosystem in which encryption and decryption are performed in association with the transmitting and receiving functions. [INFOSEC-99]

An extension telephone, PBX station, or key system station located on property that is contiguous with that on which the main telephone, PBX, or key system is located.

Customer-owned metallic or optical-fiber communications transmission lines, installed within or between buildings.
Note: On-premises wiring may consist of horizontal wiring, vertical wiring, and backbone wiring, and may extend from the external network interface to the user work station areas. It includes the total communications wiring to transport current or future data, voice, LAN, and image information.

A pictorial representation of a pushbutton on a display screen, which functions as a binary control, for example, on/off. [T1.232-1996]

1. In radio communications systems, pertaining to a station that is transmitting a carrier, whether or not the carrier is modulated.
2. In a radio station, pertaining to a particular source of modulation, such as a specific microphone, that is connected, i.e., is capable of modulating the carrier.

Abbreviation for open network architecture.

Code in which plain text elements and their accompanying code groups are arranged in alphabetical, numerical, or other systematic order, so one listing serves for both encoding and decoding. One-part codes are normally small codes used to pass small volumes of low-sensitivity information. [INFOSEC-99]