23758

FED-STD-I037C

PABX: Abbrzvłaiio/\ for prtrate automatlcbranch eschange. Szz PBX. A<oiz.    Uie of the term

^mP6X'’ ii morę oommon than "PA8X," regardteu of aulomalion.

packet: Th dala oommuh talon, a lo^uence of binary dic.il*.. including data ahd oohtrol lignali. that ii trahimitled and iwilched ai a compoiile w hole. A<ofe. The data. cohtrol lignali. ahd pouibly error oohtrol ihformatioh, are arranged ih a ipecific format. (188)

packet assembler/dlsaaiembler {PAD): A fuhctional uhillhalenableidala terminal equipmehl(DTE) hol e^uipped for pac ket iwitehing to aocen a packę V Iwitched r»et»ork.

packet format: Tte ilrurture of dala. addreu.and oohtrol ihformatbh ina packet. (188) A<otz. The li/e and content of the va rioui He kii i h a pac ket a re defined by a set of rulei that are uied to aiiemble ihe packet.

packet Internet groper: Szz ping.

packet modę:    A modę of operaling a

OOmmuhicatiohl helwOrk ih which packet lwilchihg ii uied rather than meuage iwitehing. [From Weik •89]

packet-mode terminal: Data terminal e^uipmehl (DTE) that can ccłitrol. for mat. tran i mit. a nd reoe ive packę U. (188)

packet-swltcbed data transmlsslon sernice:    A

lenicelhat (a) pro* de i for the tranimiuion ofdata in the form of packeli, (b) iwitchei data al the packet level. ahd (c) may provide for the auembly and diianembly of data packeti. (188)

packet swłtcblng:    The proce u of roulihg and

1/ahiferringdala by meam ofaddreued packeti 10 that a c ha hne I ii occupied during the tran im i ii ion o f the packet ordy. and upon completion of the Ha m mi u ion ihe channel ii madę avai labie for the tramferofolher trafTio. (188)

packet-s^altcWngnetwork: A iwifched network that trahimiti data ih the form of packeti. (188)

packet-swttcbfng node:    Th a packet-i**ilch i ng

hetwork. a node that oontaini data iwitehei and e^uipment for controlling, formatling. trammillihg. routing.and receiving data packeti. (188) Afo/z. Th the De fenie Data NetWork (DDN). a packet-i v»itch ihc. hode ii ul ua lly eon figured to iupport up to lhirty-lwoX.25 56-kb/i hoiloohhectiom.ai many ai iix 56-kb/i ihteriwiteh truhk (TST) linei to other packel-i k* itc hi ng node i. and at leailone Terminal Aocen Conttoller (TAC).

packet transfer modę: A melhod of ihformatioh trahifer, by mean i of packet tram mi nbn and packet iwitchihg. that permiti dynamie iharing of nelwork reiouroei among trany connectiohi.

packlng denslty: The humber of ilorage oelli per unit length. area. or volume of ilorage media. Atvc. Eocamplei of packing deniity are the humber of biti orcharacten llored per unit length of tragneticlape ahd the humberof biti ltored per unit length oftrack onanopticaldiik.

pad: A neU>ork, of fixed rei ii ton. that atlenuatei lignali by a fwedamounl «.>ilh hegligibte di Horton. (188) Notz. The reiiitive network ii calted an aJfzrumJor if the reiiltehOC il adjullabte.

PAD: Acronym for packet assembr/dfeassemb 1 er.

pager: A mobile roceiver for pagihg oommuh baton i. allO khOv»h ai a "bzzęzr " [d7CFR]

pagtng: A one-v»ay oommunicatiom iervioe from a baie itaticłi to mobile or fixed receiven that provide lignaling or ihformatioh tramfer by i uch mea ni ai tonę. tone-voioe. lactile. optical readout. z/c. [47CFR]

palred cable: A cable madę up of Ohe or morę leparately iniulated tv>iited-s»ire pain, nonę of »hbh ii arraitged svith aoother to formquadi. (188)

palred dteparlty codę: A codę in s>hich lome or all oftheckaracten are repreiented by l»o leti ofdigiti ofoppoiile diiparily that are uied in iequenoe 10 ai lominimi^e the lolal diiparily ofa bhger vequence