1 | P a g eAMAR PANDEY SUMMER TRAININGREPORT,ITI MANKAPUR, GONDA2 | P a g eFIRSTGENERATIONELECTRONICS SWITCHE10BINTRODUCTION:- E10B is a digital switching system which su!"ts !nly#!ice c!mmunicati!n and CIT $%&$TE% !' ("ance de#el!sthis system) E10B is a teleh!ne switching system *ased!n elect"!nics c!m!nents and techni+ue) Tw! main!e"ating "incile a"e ca""ied !#e" lat!!n system use !'PC,digital techni+uesea"ati!n!' switching'uncti!n'"!m !e"ati!n and maintenance (uncti!n this switchingcan*euset!t"ansmit a#a"iety!' signalsteleh!ne-teleg"ah Data)E10B E.C/$N0E 1TRUCTURE DI$0R$,:- 3 | P a g e)1$%IENT (E$TURE1 O( 121TE,:- It isadigital switchingsystemwith3stage4T1T5switchwithama6imum!ssi*lec!nnecti!n!' 378PC,s) It su!"ts!nlyanal!gsu*sc"i*e"swith!" with!ut"e#e"sal 'acilities) 1ystemsu!"ts !nly R$ND( signaling4channel$ss!ciated signaling5) It "!#ides datac!mmunicati!nteleh!nyandthe!the" #alue added se"#ices) 0e!met"ical a"amete" T"ansmissi!n a"amete"15$ttenuati!n95Dise"si!n Otical a"amete"s15 Nume"ical $e"tu"e 95 ,!de :eld diamete" ,echanical a"amete"4 | P a g eE10B EXCHANGE STRUCTURE DIAGRAM:! | P a g eSYSTEM STRUCTURE AND ORGANISATION:$n E10B switching system cente" can *e di#ided int! 3main *l!c;s) The !e"ati!n and maintenance cente"c!nstitute a '!u"th *l!c;s which is sha"ed *y a num*e" !'switching cente"s)BLOCK1: SUBSCRIBERANDMULTIPLEXCONNECTIONS The su*sc"i*e" c!nnecti!n unit 4UR$5 is the C1E 1000elect"!nics line c!nnect!")" | P a g e This"!#ides '!" c!ncent"atingthe t"a