A mode of operating a data transmission system in which control characters are treated and interpreted as such, rather than simply as data or text bits in a bit. [From Weik '89]

NACK-Oriented Reliable Multicast

A state that exists on a permanent virtual circuit connection when there are no alarm conditions on either the originating or terminating endpoints. The absence of alarms must be satisfied on both the channelized side and the packetized side. During the NORM state, signaling packets have their normal alarm (N/A) bit set to
0. [T1.312-1991]

The mode of ACSE (association control service element) operation that results in the transfer of ACSE semantics, using the presentation service. [T1.208-1989]

The mode of operation of the Presentation Layer, which provides the full facilities of the presentation service. [T1.208-1989]

A still image transmitted in the ANSI Tl.314 video stream encoded to the same resolution as the previous motion video (i.e., QCIF—quarter common intermediate format).
Note: This mode uses a bit 2 "document camera indicator. " [T1.80
0. 08-1995]

The routing of a given signaling traffic stream under normal conditions (in the absence of failures). [T1.226-1992]

A bit used in signaling packets to transfer information on alarm status across a permanent virtual circuit in the direction of transmission from the channelized side to the packetized side. The N/A bit set to 0 indicates normal operation. The N/A bit set to 1 indicates the existence of an alarm on the channelized access facility or error condition on… (Read More →)

1. In an optical fiber, a dimensionless quantity, V, given by where a is the core radius, is the wavelength in vacuum, n1 is the maximum refractive index of the core, and n2 is the refractive index of the homogeneous cladding.
Note 1: In multimode operation of an optical fiber having a power-law refractive index profile, the approximate number of… (Read More →)

A plan for the allocation of unique 10-digit address numbers. The numbers consists of a 3-digit area (numbering plan area) code, a 3-digit office code, and a 4-digit line number. The plan also extends to format variations (e.g., 3-digit and 7-digit address), prefixes (e.g., 1, 0, 01, and 011), and special code applications (e.g., service access codes). [T1.104-1988]