An Integrated Services Digital Network (ISDN) interface that connects private branch exchanges (PBXs) to the network at the North American 1.544 megabits per second (Mbps) T1 rate. It is electrically identical to the ISDN Basic Rate Interface (BRI). North American standards for this interface specify 23 64-kilobit-per-second (Kbps) B, or bearer, channels, plus one 64-Kbps D, or delta, channel. Thus, it is also referred to as 23B+D. In Europe, where it is known as Primary Rate Access (PRA), standards call for 30B+D. See PBX, ISDN and T1.
Primary Rate ISDN. PRI is a 4-wire 1.544 megabits per second (DS1) local switching system port that uses the B8ZS line code and the ESF framing format. PRI is available in a twenty-three B channel plus one D channel (23B + D) configuration or a twenty-four B channel (24B) configuration.
Stands for Performance Rated I-Joist.
24 Channel Digital T1 having 23 useable channels with the 24th one being the ‘D' controlling channel
Primary Rate Access of 23 B-Channels that operates at T1 data rates, an industrial grade ISDN line
An ISDN circuit transmitting at T-1(DS-1) speed (equivalent to 24 voice grade channels). One of the channels (D) is used for signaling, leaving 23 (B) channels to carry data and voice transmissions.
Primary Rate Interface is the ISDN equivalent to T1 circuits. It provides 23B+D (Americas) or 30B+D (Europe). [Source: York Telecom
In North America 1,544,000 bits/second and made into as many as 24 phone calls.
Network cable that carries 23 usable phone lines that run at 64 kbps or 56 kbps.
See Primary Rate Interface (PRI).
Primary Rate Interface. An access interface used by businesses with large data needs or with the need to set up their own local phone system. It provides a fast connection to the telephone company. In North America and Japan, the most common PRI has 23 64 Kbps B channels and one 64 Kbps D channel (23B+D). In Europe, the most common PRI is 30 64 Kbps B channels, and one 64 Kbps D channel (30B+D).
(Primary Rate Interface) A type ISDN service designed for large organizations. Includes many B-channels (bearer channels) and one D-channel (data channel).
ISDN interface to primary rate access. Primary rate access consists of a single 64-Kbps D channel plus 23 (T1) or 30 (E1) B channels for voice or data. Compare with BRI (Basic Rate Interface), ISDN interface composed of two B channels and one D channel for circuit-switched communication of voice, video, and data.
Primary rate interface circuits. These are all digital lines between your ISP and the telephone company.
Primary Rate Interface. An ISDN circuit that has E1 or T1 capacity. E1 rate, used in Europe, is given by 30 B channels and 1 D channel. T1 rate, used in North America and Japan, is given by 23 B channels and 1 D channel. Also see E1, T1, ISDN, B channel, and D channel. Compare with BRI.
(Primary Rate Interface) Primary rate interface (PRI) is the wholesale version of ISDN service. PRI delivers 23 64-Kbps B channels and 1 64-Kbps D channel. PRI service is referred to as 23B+D. As you might guess, this digital communications power comes with a price tag that is out of reach for most. This bandwidth power is comparable to a T1 line. Companies installing multiple ISDN lines use PRI as a kind of wholesale delivery of B channels, which are then divided at the premises. Internet service providers and large organizations use PRI service for handling incoming BRI connections.[See Also: BRI, ISDN
An ISDN interface that provides 23 64 kbps digital "B" (Bearer) channels of or voice or data and one 64 kbps digital "D" (Delta) channel for signaling. ISDN PRI is sometimes referred to as 23B+D.
Primary Rate Interface A PRI is a truly digital circuit, containing 24 ISDN channels. One of these channels is a dchannel and used for signaling. The rest are bchannels and used to transport audio.
stands for primary rate ISDN.
Primary rate ISDN. is a high-bandwidth form of ISDN. A PRI circuit has 23 B-channels and a 64,000-bit D-channel for signaling (1,536,000 bits per second) in the United States, and 30 B-channels in Europe and Asia.
Primary Rate Interface—an ISDN standard interface which specifies B and D channels for T1 and E1 trunks.
Primary Rate Interface. An ISDN subscriber line consisting of 23 64Kbps B channels and one 64Kbps D channel used for signaling.
The ISDN Primary Rate Interface, or PRI, in the U.S. provides 23 B channels and one 64 Kbps D channel (23B+D), equivalent to T1. In Europe, PRI includes 30 B channels and one D channel, which is equivalent to European E1.
ISDN's carrier or large user interface comprising 30BD channels in Europe, supporting around 1,920Mbit/s.
Primary Rate Interface. In the U.S., the Primary Rate Interface is split into 23 B channels and one 64 Kbps D channel. PRI is delivered over the same physical link as a T1, or 1.55 Mbps link.
(ISDN Primary Rate Interface) - a type of signaling used on a T1 circuit.
Primary Rate [ISDN line] Interface
Participation Rate Index. A cohort default rate appeal option for postsecondary institutions with a low percentage of students participating in the loan programs.
primary rate interface. An ISDN bandwidth.
(Primary Rate Interface): A larger aggregate than a BRI, a PRI will consist of 24 channels (T1) or 31 channel's (E1). In either case one channel is reserved for call signaling. For T1s, the D-channel is the 24th channel while the E1s use the 16th channel for signaling.
Primary Rate Interface referring to ISDN.
North American Primary-Rate Interface, 23B+D ISDN interface, made up of a 64 Kbps D-channel for signalling, and 23-B channels for data, each operating at 64 Kbps.
Primary Rate Interface. In ISDN, the specification for the interface at each end of the high volume trunks linking PBX and central office facilities or connecting network switches to each other. The primary rate consists of 23 B or "bearer" channels (operating at 64 kilobits per second) and a D or "data" channel (also functioning at 64 kbps). The combined signal carrying capacity is 1.544 megabits per second -- equivalent to that of a type T1 channel.
An ISDN interface consisting of 23 B-channels, operating at 64Kbps each, and one 64Kbps D-channel. Companies installing multiple ISDN lines often use PRI to provide sufficient bandwidth for their network(s). PRI service is referred to as 23B+D.
A type of ISDN line that consists of twenty-three 64 kbps B channels and one 64 kbps D channel. The connection rate of this line is about 1.5 mbps; also known as a T1.
Primary Rate Interface is a specification for out of band signaling. On a T1 circuit, there are 23B channels (voice channels) + 1D channel (for signaling). Up to Top Up to Top
Primary Rate Interface An ISDN subscriber line, consisting of twenty-three 64 kbps B channels in North America (thirty 64 kbps channels elsewhere) and one 64 kbps D channel, used for signaling purposes.
Primary Rate Interface. An industrial grade ISDN line. In the United States and Japan, a PRI consists of 23 64K bearer channels and a 64K delta (controller) channel. In Europe, a PRI consits of 30 bearer channels and a delta channel.
Primary Rate Interface for ISDN (23B+D). (7/96)
Primary Rate Interface An ISDN service that provides 23 64-Kbps B (Bearer) channels and one 64-Kbps D (Data) channel (23 B and D).
Edit / See: Primary Rate Interface
Primary Rate Interface. This term is always used in connection with ISDN, as in “ISDN PRIâ€. It refers to a digital circuit, such as a T1 or E1, that carries multiple calls and uses the ISDN signaling protocol.
Primary Rate Interface. A type of ISDN service that offers 23 B-channels at 64 Kbps and one D-channel at 64 Kbps (23B+D). In Europe, PRI provides for 30 B-channels and two D-channels (30B+1D).
Primary Rate Interface is the combined signal-carrying capacity of 23 B-Channels (Bearer Channels) operating at 64 kbps and one D-Channel (Data Channel) also functioning at 64 kbps. The total capacity is equal to that of 1 DS-1 circuit.
It is consist of 29 channels for voice transmission, video materials and data (B class) and 1 signal channel (D channel)/ Each of 30 PRI channels has a 64 kbit/sec capacity.
rimary ate nterface. ISDN service providing 23 64Kbps channels plus one 64Kbps control channel. Equivalent in bandwidth to T1 - 1.544 Mbps.
Primary Rate Interface. Primary Rate Interface is the trunk interface to the mobility server where the voice channels are separate from the data channel.
(Primary Rate Interface). One of the two ISDN access methods. 23 of 64 Kbps B channels and 1 64 Kbps D channel constitute a PRI.
Primary Rate Interface. It is a specification ISDN that provides 23 channels B to 64 Kbps and a 64 channel D of Kbps to use on a DS1 or A HREF="#E-1"E-1. Q-q
(Primary Rate Interface). A PRI line is one of two access methods to ISDN; BRI is the other. In North America PRI consists of twenty-three 64 Kbps B channels and one 64 Kbps D channel (known as 23B+D). The European PRI consists of 30 Kbps B channels and one 64 Kbps D channel (known as 30B+D). Also see B Channel BRI D Channel Kbps ISDN
Primary Rate Interface. An ISDN PRI is an industrial-strength ISDN telephone connection commonly used to service multiple dial-up data connections, large central switchboard “PBX†systems, and other highly-specialized needs. Each ISDN PRI has twenty-three 56 or 64Kbps B Channels and one 64Kbps D Channel.
Primary Rate Interface. An ISDN connection utilizing 23 64Kbps B channels (bearer) and a single 16Kbps D Channel (Delta). Also commonally called a T1.
Primary Rate Interface. A type of ISDN service that includes 23 B-Channels and a D-Channel.
Primary Rate Interface. One of two levels of ISDN service. In North America, the PRI typically provides 23 bearer channels for voice and data and one channel for signaling information (commonly expressed as 23B+D). In Europe and most countries other than North America, PRI typically provides 30 bearer lines (30B+D).
(See Primary Rate Interface)
a digital line that provides 23 application channels and 1 signaling channel. The 23 application channels can be shared for voice, data and video applications – depending on the installation. Commonly used is to replace multiple individual phone lines in a business for a streamlined cost.
Primary Rate Interface. The ISDN equivalent of a T1 circuit. Signaling is carried out-of-band in the data channel, rather than in-band in the channels as in a T1.
ISDN Primary Rate Interface. Consists of twenty-three ‘B’ (data) channels and one ‘D’ (signalling) channel of 64 kbits/s and 16 kbits/s respectively.
Primary Rate Interface. This is the narrowband ISDN interface standard for high-speed ISDN service. Within the US, this provides 23 channels of data and/or voice traffic.
rimary ate nterface; a term used to describe a trunk configuration consisting of 23 B channels and one D channel running at 1.544 Mbyte/s (or 30 B channels and one D channel at 2.048 Mbyte/s in Europe). It is an ISDN interface equivalent to a T1 circuit. Also known as primary rate. See also ISDN.
Primary Rate Interface - See Primary Rate
PRI means primary rate interface and is the used when a single or multiple BRI are not sufficient in bandwidth. In Europe, a PRI includes 30 B-channels for data communication, and 1 D-channel for administration of the data communication.
Primary Rate Interface. A four-wire ISDN line (or “trunk”) with the same capacity as a T1, 1.544 Mbps. PRIs contain 23 64 Kbps B-channels and one 64 Kbps D-channel. The D-channel carries call-control signaling for all the B-channels.
(Primary Rate Interface) - This is an ISDN interface typically used by larger users.
Primary Rate Interface. PRI is an ISDN interface to primary rate access. Primary rate access consists of a single 64 Kbps D channel plus 23 T1 or 30 E1 B channels for voice or data.
A bundle of ISDN circuits, primarily a PBX interface. The United States and Japan use 23B+D, and the ITU uses 30B+D. Also called Primary Rate Access (PRA).
Primary Rate Interface - This is an Integrated Services Digital Network (ISDN) interface typically used by larger customers. This interface consists of a single 64 Kbps Data (or "D") channel plus 23 or 30 Bearer (or "B") channels for voice and/or data.
A flavor of ISDN that is carried on a T-1 circuit. It provides 23 B-CHANNELs (see also) and one D-CHANNEL (see also) for signaling.
Primary rate interface or primary rate ISDN (Integrated Services Digital Network). In North America, PRI consists of 23 B channels and 1 D channel for a combined capacity of 1.544 Mb/s. In Europe, 30 B channels and 1 D channel provide a combined capacity of 2.048 Mb/s. See also BRI, ISDN.
