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B
B-CDMA - broadband code-division multiple access
B-ISDN - broadband ISDN
B - Channel (Bearer) - In ISDN (Integrated Services Digital Network), a 64 kbps information carrying channel, capable of carrying lower rates within the 64 kbps channel.
B/B - baseband
B/P/C/S - base, post, camp, and station
B2C2 - brigade (battalion) and below Command and control
B3ZS - (Bipolar with Three Zero Substitution) - This format is used at the DS3 level for zero code suppression and is used only with the T3 Trunk module in a Promina 800.
B8ZS - (Binary Eight Zero Substitution) - A deliberate bipolar violation to solve the ones density problem, or to accommodate the requirements of digital T1-carrier facilities in the public network, while allowing 64 kbps clear data per channel. Rather than inserting a one for every seven consecutive zeroes (see Ones Density), B8ZS inserts two violations of the bipolar line encoding technique used for digital transmission links. This format is used at the DS1 for zero code suppression.
BAAS - broad area surveillance system
Backbone - Network - A transmission system that is designed to interconnect and integrate a variety of voice, data, and image networks of a diverse array of equipment, plus all applications.
Backplane - Connection point between the modules and the shelf, includes jumper settings.
BADD - battlefield awareness and data dissemination
BAI - battlefield air interdiction
BAIR - battlefield automation integration review
BAL - basic assembly language
BAL - balanced
BAM - Basic Access Module
BAMD - battlefield automation management directorate
BAMP - battlefield automation management program
BAN - base area network (Air Force)
Bandwidth - The frequency range between the highest and lowest frequencies, expressed in hertz, passed through a network. Bandwidth is divided into smaller frequency ranges, which can be assigned to particular transmission uses.
Bandwidth - Calculations - In addition to bandwidth that is used by a call, there may be transparent signaling bandwidth, and trunk asynchronous bandwidth as well. Transparent signaling bandwidth is required for data calls configured for transparent signaling. Trunk asynchronous bandwidth is required for calls that originate from a data port with a port speed that is not divisible by 8 kbps, USD ports configured as pass-through timing, and QASD ports configured for asynchronous timing.
Bandwidth - On Demand (BOD) - The assignment of bandwidth to a trunk (circuit link) only when the call is active. When the call is terminated, that bandwidth is then available for other calls.
Bandwidth - Pooling - A feature that allows pooling of the capacity of individual trunks between nodes. It treats pooled bandwidth as an aggregate trunk link. Bandwidth for a particular call is contiguous on one trunk, and a call cannot be divided across more than one trunk.
Bandwidth - Reservation - An approach that allows the user to reserve bandwidth for a call. It is especially useful for high-bandwidth or high-priority calls. By entering the appropriate information in a port's database, a specified amount of bandwidth can be reserved on a daily or one-time basis. When there is insufficient bandwidth, reservation depends on normal call attrition. As calls hang up, bandwidth is reserved. Only calls with priority lower than the call's preempt priority are refused.
BAS - Battlefield Automated Systems
Baseband - The frequency band occupied by a single or composite signal in its original or unmodulated form.
BASEWAM - battlefield surveillance electronic warfare analysis model
BASIC - beginnerÕs all-purpose symbolic instruction code
BASM - built-in assembler
BAT - block address translation
BAT - battery
BATCON - battalion command
BATES - battlefield artillery target engagement system
Baud - A measure of signaling rate for a digital signal, which is approximately equal to bits per second.
BAV - broadcast area variables
BBC - backup bus controller
BBMTA - border BMTA
BBN - BaseBand Node
BBS - bulletin board system
BC - Broadcast
BC - bus controller
BC2AS - Bosnia command and control augmentation system
BCBL - Battle Command Battle Lab
BCC - (Block Check Character) - An error detection technique in which a character is appended to the end-of-message indicator at the end of a block of synchronous data. Using a predefined algorithm, the transmitter computes the BCC. If there are no errors (XMT and XCV data are equal), the receiver's BCC should match that of the transmitter.
BCCS - battle command and control system
BCD - binary-coded decimal
BCI - bit count integrity
BCID - battlefield combat identification
BCIS - battlefield combat identification system
BCL - batch command language
BCN - beacon
BCOR - brigade COMSEC office of record
BCP - bulk copy program
BCR - battlefield communications review
BCR - byte count register
BCS - ballistic computer system
BCS - battery computer system
BCS - block check sequence
BCS - baseband communications system
BCSR - basic commercial security requirements
BCT - battlefield command terminal
BCT - Brigade combat teams
BCTP - battle command training program
BCU - battery computer unit
BCU - buffer and conversion unit
BCV - battle command vehicle
BDA - dattle damage assessment
BDC - backup domain controller
BDD - binary decision diagrams
bde - brigade
BDI - BLACK digital interface
BDMS - baseline data base management System
BDOS - basic disk operating system
BDS - battlefield data system
BECN - backward error correction notification
Bell - Labs - The basic research facility which was AT&T's primary research facility. Bell Labs was spun off with Lucent Technologies. Many very important discoveries have been made at Bell Labs including the transistor, communications theory, and radio astronomy.
Bellcore - BELL COmmunications REsearch. See Telcordia. The research and development organization owned by the RBOCs. Bellcore represents the RBOCs in developing standards for Telco equipment and in testing equipment compliance to those standards. Bellcore also offers educational and training programs open to all interested parties.
BEPS - biological experiment per second
BER - Basic Encoding Rules
BER - (Bit Error Rate) - The percentage of received bits in error, relative to a specific amount of bits received. It is usually expressed as a number referenced to a power of 10.
BERT - 1. Bit Error Rate Test- A test for digital lines which involves looping a data path and sending a test pattern. Data returning is compared to the sent data to check for errors. Depending on the "Test Pattern" used, BERTs may or may not uncover problems. A line which only has occasional problems will need a BERT of sufficient time duration to catch that intermittent problem. A five minute BERT of an ISDN BRI circuit will only catch severe problems. 2. A Bit Error Rate Tester. The test equipment used to perform a Bit Error Rate Test.
BET - bulk-encrypted transaction
BETA - battlefield exploitation target acquisition
BEX - broadband exchange
BEZS - (Bandwidth Efficient Zero Suppression) - An N.E.T.-developed method of zero-byte substitution to guarantee ones density (forcing a zero-byte--0000 0000 binary--to a one-byte--0000 0001 binary) in accord with AT&T's specification for the Accunet T1.5. All trunks used by a circuit must be configured for BEZS to ensure that data is not corrupted. BEZS is the N.E.T. version of the industry standard for B8ZS (Bipolar with Eight Zero Suppression).
BEZS - Trunk Interface Card - This card provides a DS1 bipolar signal to one full-duplex T1 trunk. It also supports maximum bandwidth zero suppression (MBZS).
BFA - battlefield function
BFA - Battlefield Functional Area
BFACS - battlefield functional area control system
BFN - beam forming network
BFSK - binary frequency shift keying
BFT - binary file transfer
BFTT - battle force tactical training (Navy)
BG - battle group
BGE - branch if greater or equal
BGP - Border Gateway Protocol
BGPHES - battle group passive horizon extension system
BHCC - Busy Hour Call Completions
BI - binary input
BI - business intelligence
BIC - bus interface controller
BICC - Battlefield Information Coordination Center
BICEP - battlefield integrated concept emulation program (Army)
BICES - battlefield information collection and exploitation system (NATO)
BIFF - battlefield identification friend or foe
BII - base information infrastructure
Billing - Telephone Number - The main phone number which all calls on a PRI are billed to. This information is required when configuring a PRI PBX.
BIMS - battlefield information management system
BIND - Berkeley Internet Name Domain
BIOS - basic input-output system
BIP - base information protection
Biphase - Coding - A bipolar coding format, also referred to as Manchester coding, which allows clock information to be imbedded into and recovered from the synchronous data stream without the need for separate clocking leads.
Bipolar - Eight-Zero Suppression - Removes the requirement for ones-density at the 64 kbps level by sending a bipolar violation code at the 1.544 Mbps level.
Bipolar - Signal - A digital signal, also referred to as AMI (alternate mark inversion) that conveys binary digits in which successive "marks" or ones alternate between positive and negative polarity, equal in amplitude. Spaces or zeros are of zero amplitude.
Bipolar - Violation - This signal is generated when receiving equipment detects two ones in a row of the same polarity in a bit stream. Also see zero suppression.
BIPS - billion instructions per second
BIRS - battlefield information reporting system
BIS - Battlefield Information Services
BISDN - broadband integrated services digital network
BIST - built-in self-test
BiSync - (Binary Synchronous Communications) - A communication protocol used by IBM. It uses a defined set of control characters and control character sequences for synchronized transmission of binary coded data between stations in a data communications system.
BIT - built-in test
Bit - (Binary Digit) - In digital circuits, the basic unit of information designated by one of two possible values, 0 or 1.
Bit - 7 Stuffing - Used to maintain ones-density requirements by forcing Bit 7 (second least significant bit) to a one when all bits of a byte (8-bit) are all zeros.
Bit - Error Rate Test - See BERT.
Bit - Rate - The capacity of a digital channel. ISDN calls are set up at a given bit rate, either 64Kbps or 56Kbps. The bit rate cannot be changed during a call. See Kbps.
Bit-Oriented - Protocol - A protocol such as SDLC (Synchronous Data Link Control) and HDLC (High-Level Data Link Control).
BITE - built in test equipment
BITS - battlefield information transmission system
BIU - bus interface unit
BIX - byte information exchange (BBS)
BL - backlit
BL - baseline
BLACK - unclassified
BLII - base level information infrastructure
blk - block(s)
BLOBS - binary large objects
Block - The means for preventing calls on links, trunks, or ports.
Blocking - When a circuit switched call cannot be completed. The percentage of blocked calls to the number of calls attempted forms the basis of a statistic called "grade of service". While it is economically infeasible to build a network which would have no blocking, the phone company are held accountable by the utility commissions to keep blocking below tariffed levels. The concept of blocking cannot be applied to packet networks, only circuit switched networks.
BLOS - beyond line-of-sight
BLSM - base level system modernization (See GCSS-AF)
BLWE - Battle Lab warfighting experiment
BM - battle management
BM/C3 - battle management/command, control, and communications
BMAN - broadband metropolitan area network
BMD - ballistic missile defense (formerly SDI)
BMDO - Ballistic Missile Defense Organization (formerly SDIO)
BMM - BLACK Multiplexer Module
BMO - battalion maintenance officer
BMP - batch message processing program
BMTA - backbone message transfer agent
BN - backbone network
bn - battalion
BNC - British Naval Connector
BNC - Bayonet Neill Concelman [Electronics] (connector used with coaxial cable, named after inventor). Also: British naval connector.
BNCC - Base Network Control Center
bnd - band
BNE - branch if not equal
BO - binary output
BOC - Bell Operating Company
BOH - bottom of hill
BOI - basic operator interface
BOIS - battlefield operating instruction system
BOM - bit-oriented message
BONES - block-oriented network simulator
BOO - base of operations
BOOTP - Bootstrap Protocol
BOP - bit oriented protocol
BOS - basic operating system
BOS - Battlefield Operating System
BOSS - base operations support system
Both - Way Trunks - See Combination Trunks.
BPA - blanket purchase agreement
BPA - business process automation
BPF - Berkeley Packet Filter
BPFTP - Bullet-proof FTP
BPI - bit per inch
BPM - background processing management
BPOM - breadboard on passive optic network
BPP - Brokered Private Peering
BPR - business process reengineering
bps - (Bits Per Second) - A measure of the information transfer rate of a data channel.
Bps - bytes per second
BPSK - binary phase-shift keying
BRI - ISDN Basic Rate Interface. The common form of ISDN with 2 Bearer Channels and one D Channel. All three channels are on a single copper pair and encoded with type 2B1Q coding.
BRI-S - Basic-Rate S-Interface
BRI-U - Basic Rate U-Interface
Bridge - A device that connects two or more physical networks, and transmits packets between them. Bridges can filter packets; that is, the transmittal of certain packets. Also see repeater and router.
BRITE - Basic Rate Interface Transmission Extension. A technology where ordinary T-1 trunks (or any other digital carrier system) are used to extend ISDN service. See also Repeater.
Broadband - Characteristic of any network that multiplexes several independent network carriers into a single cable. This is usually through Frequency Division Multiplexing. Broadband technology permits traffic on several networks to coexist on a single cable.
BRSS - Brigade Remote Subscriber Service
BS - bit select address
BS - broadcast source
BSA - basic service (serving) agreement
BSA - brigade support area
BSAM - basic sequential access method
BSBN - baseband
BSBP - Block-Step-Back Parameter
BSC - binary synchronous communications
BSC - BLACK station clock
BSD - Berkeley Software Distribution
BSE - basic service element
BSF - bit scan forward
BSI - British Standards Institute
BSM - battlefield spectrum management
BSN - Brigade Subscriber Node
BSO - basic security option
BSO - brigade/battalion signal officer
BSR - bit scan reverse
BSS - broadcasting satellite service
BSU - bulk storage unit
BSYNC - binary synchronous communications
BT - bit test
BTB - branch target buffer
BTC - bit test and complement
BTL - backplane transceiver logic
BTN - See Billing Telephone Number.
btry - battery
BUCS - backup computer system
BUF - buffer
Buffer - A temporary storage space in RAM to compensate for varying data transmission rates.
Bundle - The term that describes a group of 64 kbps time slots in the T1/T3 facility. Bundles are supported on the TRK-3 module.
Bundle - ID - Bundles are identified through the Operator Interface by the card ID and an arbitrary number preceded by the letter B and an optional node ID.
Bus - An electrical path connecting circuit elements, printed circuit board assemblies, and other system components. The TBus is used to carry user data, a CBus is used to carry signaling and control information between the modules, and an XBus is used to connect the card shelves.
Bus - Extender - A card that distributes the clock and data signals for the expansion shelf of the 24-slot Promina 400. The bus extender set consists of the bus extender, bus repeater, and two bus extender cables.
Bus - Repeater - A card for the 24-slot Promina 400 that relays clock and data signals to the expansion shelf.
Bus - Terminator Board - On the Promina 800 and 400 nodes this board provides the termination point for buses on a standard shelf.
Business - Office - The part of the phone company where you call if they mess up your bill, to report problems, and to order service. Not necessarily technically literate.
BV - battlefield visualization (Army)
BVTC - battlefield video teleconferencing
BW - bandwidth
BWLP - black and white laser printer
BWM - block-write mode
BWM - bandwidth manager
BWOFS - battlefield weather observation & forecast system
BX - (Bus Extender) Module - This module (in each STS or EXS shelf in a Promina 800) functions as the communication link from the STS shelves (or EXS shelves) to the HSS-2 shelf. It is the interface between the SX module and the STS or EXS shelves and extends the bus from the SX module to the STS and EXS shelves.
Byte - A sequence of adjacent binary digits operated upon as a unit and usually shorter than a computer word. A group of eight bits makes a byte. Typically, a 16-bit word is itself divided up for handling. A byte is usually the smallest addressable unit of information in memory.
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