Ctntdst ecnhjqcndf - RGRCOM · DDTLTYBT D CTNTDST ECNHJQCNDF Ctntdst ecnhjqcndf D byajhvfwbjyyjv j,tcgtxtybb ghtlghbznbq b xfcnys[ gjkmpjdfntktq ... ISDN, HDLC, SLIP, PPP…

146 RAD Data Communications 2005 Rfnfkju

D D T L T Y B T D C T N T D S T E C N H J Q C N D F

Ctntdst ecnhjqcndf

D byajhvfwbjyyjv j,tcgtxtybbghtlghbznbq b xfcnys[ gjkmpjdfntktqlj cb[ gjh ghbvtyz/ncz ytrjnjhstdbls nhflbwbjyyjuj j,jheljdfybz>hf,jnf/otuj gj cgtwbabxtcrbvghjnjrjkfv b yf yt,jkmib[ crjhjcnz[gthtlfxb lfyys[. RAD ghbyflkt;bn ryt,jkmijve xbcke ghjbpdjlbntktq>ghjljk;f/ob[ dsgecrfnm ctntdstfrctccefhs lkz nhflbwbjyyjujj,jheljdfybz.

Htitybz gthtlfxb lfyys[ lkzctntq X.25/Frame Relay

Ctvtqcndj ecnhjqcnd gfrtnyjqrjvvenfwbb drk/xftn gfrtnystfcctv,kths#lbcfcctv,kths !PAD@ bvyjujghjnjrjkmyst gfrtnystrjvvenfnjhs. Dct jyb cjjndtncnde/ngjcktlybv cgtwbabrfwbzv ITU b ANSI.Ecnhjqcndf gjllth;bdf/n hfpkbxystghjnjrjks> drk/xfz HDLC, SLIP, PPP, IP,ISDN b fcby[hjyye/ gthtlfxe lfyys[. C gjvjom/ 'nb[ ecnhjqcnd vj;yjcjplfdfnm dscjrjghjbpdjlbntkmystxfcnyst ctnb X.25/Frame Relay lkzhfcibhtybz ctntq X.25/Frame Relayj,otuj gjkmpjdfybz. Rhjvt njuj> RADghtlkfuftn hfpyjj,hfpystbynthatqcyst ecnhjqcndf> yfghbvth>CSU/DSU bkb jrjytxyst flfgnths ISDN BRI.

Vekmnbgktrcbhjdfybt - 'njnt[ybrf> ghtljcnfdkz/ofzytcrjkmrbv gjkmpjdfntkzvdjpvj;yjcnm jlyjdhtvtyyjujrjkktrnbdyjuj gjkmpjdfybz jlybvrfyfkjv cdzpb

Yfb,jktt ibhjrj ghbvtyz/ncz ldfvtnjlf vekmnbgktrcbhjdfybz -vekmnbgktrcbhjdfybt c hfpltktybtvdhtvtyb (TDM) b cnfnbcnbxtcrjtvekmnbgktrcbhjdfybt. D TDM ghjgecryfzcgjcj,yjcnm rfyfkf cdzpb !ukfdyjujrfyfkf@ hfcghtltkztncz d cjjndtncndbb c

dhtvtyysvb bynthdfkfvb!abrcbhjdfyysvb> pfhfyttecnfyjdktyysvb ahfuvtynfvb@ vt;lehfpkbxysvb gjkmpjdfntkzvb!gjlrfyfkfvb@. D STM ytn pfhfyttyfpyfxtyyjuj hfpltktybz ghjgecryjqcgjcj,yjcnb> b dhtvz ltkbnczlbyfvbxtcrb d ghzvjq ghjgjhwbb rpfuheprt rf;ljuj gjlrfyfkf.

Cnfnbcnbxtcrbt ctnb ,jktt 'aatrnbdyjbcgjkmpe/n j,obt htcehcs> gjcrjkmreghtljcnfdkz/n gjlrfyfkfv ,jkmie/ghjgecrye/ cgjcj,yjcnm> xtv cevvfhyfzghjgecryfz cgjcj,yjcnm rfyfkf cdzpb.

Ytrjnjhst vekmnbgktrcjhs RAD cjlth;fndcnhjtyyst vjltvs lkz gthtlfxb yfrjhjnrbt hfccnjzybz. "nb ecnhjqcndfghbvtyz/ncz dyenhb plfybq bkb vt;leplfybzvb lkz gjlrk/xtybz ytcrjkmrb[nthvbyfkjd r gjhnfv rjvgm/nthf gjdbnsv gfhfv bkb jgnjdjkjrye.

Ecnhjqcndf hfpltktybz

Ecnhjqcndf hfpltktybz lf/ndjpvj;yjcnm ytcrjkmrbv rkbtynfvcjdvtcnyj gjkmpjdfnmcz j,obvbctntdsvb htcehcfvb d vyjujnjxtxys[ghbkj;tybz[. Yfghbvth> vj;yjgjkmpjdfnmcz ytcrjkmrbvb DTE c j,obvvjltvjv. Ecnhjqcndf hfpltktybzeghfdkz/n htcehcfvb nfrbv j,hfpjv>xnj,s d rf;lsq lfyysq vjvtyngjlrk/xtybt r njve bkb byjve htcehceghtljcnfdkzkjcm njkmrj jlyjve rkbtyne>yj xnj,s djpvj;yjcnm ljcnegf r 'njvehtcehce bvtkb dct rkbtyns.

RAD ghtlkfuftn ibhjrbq ds,jhecnhjqcnd hfpltktybz lkz hfpkbxys[crjhjcntq gthtlfxb> bynthatqcjd> xbckfrkbtynjd b ghbkj;tybq. Ghbkj;tybzdrk/xf/n rjkktrnbdyjt bcgjkmpjdfybtvjltvjd> rjkktrnbdyjt bcgjkmpjdfybtghbynthjd b chtls c jghjcjv.Ecnhjqcndf hfpltktybz dsgecrf/ncz dgjkyjhfpvthyjv bcgjkytybb bkb d dbltvbybfn/hys[ ecnhjqcnd.

147RAD Data Communications 2005 Rfnfkju

G F R T N Y F Z R J V V E N F W B Z 12G

FR

TN

YF

Z R

JV

VE

NF

WB

Z

FPS-8

Host

SPS-3S

Headquarters Branch

Server

Ethernet

LAN

IP,

Frame Relay,

X.25

PSTN/ISDN

FPS-8Vyjujghjnjrjkmysq dscjrjcrjhjcnyjqgfrtnysq rjvvenfnjh

FPS-8 - 'nj dscjrjghjbpdjlbntkmysqrjvvenfnjh Frame Relay/X.25, ghbujlysqlkz ecnfyjdrb d ukfdyjv jabct b dwtynhf[> ult nht,etncz dscjrfzghjbpdjlbntkmyjcnm. Rf;lsq gjhn vj;tn,snm crjyabuehbhjdfy yf jlby bpytcrjkmrb[ ghjnjrjkjd% Frame Relay, X.25,RIP, RIP-2, PPP, MLPPP, HDLC, SLIP, bkb fcby[hjyysq.

FPS-8 jceotcndkztn rjvvenfwb/ gfrtnjdvt;le hfpkbxysvb ghbkj;tybzvb>yfghbvth> bp {.25 d {.25> bp {.25 djFrame Relay, bp Frame Relay dj Frame Relayb bp SLIP d SLIP. FPS-8 vj;tn nfr;tbyrfgcekbhjdfnm hfpkbxyst ghjnjrjks dctnz[ Frame Relay b {.25.

FPS-8 nfr;t zdkztncz eybrfkmysvhtitybtv lkz nhflbwbjyys[ eckeugthtlfxb lfyys[ gj dscjrjcrjhjcnysvctnzv IP gentv byrfgcekzwbb lfyys[ dgfrtns IP.

Dcnhjtyysq futyn eghfdktybz gjpdjkztnjceotcndkznm rjyabuehfwb/>rjvgbkzwb/ cnfnbcnbxtcrb[ lfyys[ b

jnxtnjd j cjcnjzybb b lbfuyjcnbre.Ljcneg r futyne djpvj;ty c k/,juj vtcnfctnb. Tuj vj;yj pfghjuhfvvbhjdfnm lkzgthtlfxb 'njq byajhvfwbb d htpekmnfntgjcnegktybz njuj bkb byjuj fdfhbqyjujcbuyfkf.

Futyn SNMP gjllth;bdftn eghfdktybtc gjvjom/ uhfabxtcrjuj bynthatqcfgjkmpjdfntkz RADview yf HC bkb cjcnfywbb HP OpenView/UNIX, xnj gjpdjkztnrjyabuehbhjdfnm ecnhjqcndf b eghfdkznmbvb xthtp ctnm X.25/Frame Relay. Jyvj;tn gjcskfnm ghthsdfybz d cnfywb/eghfdktybz b gjllth;bdftn dctcnfylfhnyst ,fps MIB.

Rfyfkmyst bynthatqcs dsgecrf/nczd vjlekmyjv bcgjkytybb b vjuen ,snmpfrfpfys lkz RS-232/V.24, V.35, RS-530,X.21, V.36 bkb Ethernet. Rf;lsqbynthatqc vj;tn ,snm ds,hfy cgjvjom/ gthtrk/xfntkz lkz DCEbkb DTE. B ghjnjrjk b bynthatqc vjuends,bhfnmcz lkz k/,juj gjhnfytpfdbcbvj lheu jn lheuf.

• Djcmvbgjhnjdsq vyjujghjnjrjkmysq FRAD bgfrtnysq rjvvenfnjh

• Djpvj;yf gjcnfdrf c ldevz dcnhjtyysvbgjhnfvb Ethernet

• Gjllth;rf ghjnjrjkjd% Frame Relay, X.25,ISDN, HDLC, SLIP, PPP, MLPPP, RIP, RIP-2,fcby[hjyysq

• Gjllth;rf IP:– Vfhihenbpfwbz IP– Cnfylfhnyfz byrfgcekzwbz IP

gj ctnzv Frame Relay (RFC 1490) bkb X.25 (RFC 1356) bkb gj Ethernet

• Eybrfkmyfz gjllth;rf nhflbwbjyys[ eckeu!rfr X.25, Frame Relay@ gj ctnzv IP

• Ghjphfxysq ,hbl;byu

• Lbyfvbxtcrjt hfcghtltktybt ghjgecryjqcgjcj,yjcnb

• Ghbjhbnbpfwbz lfyys[

• Fdnjvfnbxtcrjt htpthdbhjdfybt

• Gjllth;rf Telnet !rkbtyn b cthdth@

• Vyjujflhtcyfz gthtlfxf {.25#Frame Relay

• Eghfdktybt SNMP xthtp ghbkj;tybt RADviewjn HC bkb cnfywbb HP OpenView/UNIX

• Djpvj;yf gjllth;rf bynthatqcf ISDN BRI

• Ghjbpdjlbntkmyjcnm d ctnb Frame Relaycdsit 3000 gfrtnjd d ctreyle

• Rf;lsq bp djcmvb cby[hjyys[ gjhnjdhf,jnftn cj crjhjcnm/ gthtlfxb lfyys[ lj2 V,bn#c


G F R T N Y F Z R J V V E N F W B Z

SPS-3S, SPS-6, SPS-12Vyjujghjnjrjkmyst gfrtnyst rjvvenfnjhs

SPS-3S

IP/FR IP/X.25Frame

Relay

X.25

Network

SPS-6/12X.25 X.25

Backup

Clients

FPS-8

Headquarters

Server

PSTN/ISDN

IP,

Frame Relay

or

X.25

Network

• Nht[-> itcnb- bkb ldtyflwfnbgjhnjdsqvyjujghjnjrjkmysq FRADb rjvvenfnjh gfrtnjd

• Gjllth;rf ghjnjrjkjd%Frame Relay> X.25> HDLC> SLIP> PPP, MLPPP, RIP,RIP-2, ISDN> fcby[hjyysq> Ethernet

• Gjllth;rf IP% – Vfhihenbpfwbz IP– Cnfylfhnyfz byrfgcekzwbz IP

d ctnz[ Frame Relay !RFC 1490@ bkb X.25 !RFC 1356@ bkb xthtp Ethernet






• Gjllth;rf Telnet

• Vyjujflhtcyfz gthtlfxf X.25/Frame Relay

• Eghfdktybt SNMP c gjvjom/ RADview PC bkbHP OpenView#UNIX

• Cevvfhyfz crjhjcnm gthtlfxb lfyys[ gjnhtv kbybzv vj;tn ljcnbufnm 2 V,bn#c

• Ibhjrbq yf,jh bynthatqcjd> drk/xfzCSU#DSU b Ethernet

SPS-6 bkb SPS-12 rjycjkblbhe/n nhfabr X.25 b IP lkz jabcf chtlyb[ hfpvthjd

Gthtlfxf IP-nhfabrf vt;le ctnzvb X.25 b Frame Relay

Ecnhjqcndf SPS-3S, SPS-6 b SPS-12>vyjujghjnjrjkmyst rjvvenfnjhs gfrtnjd>ghtlcnfdkz/n cj,jqdscjrjghjbpdjlbntkmyst rjvvenfnjhslkz Frame Relay#X.25. Rf;lsq gjhn vj;tn,snm crjyabuehbhjdfy yf jlby bpytcrjkmrb[ ghjnjrjkjd: Frame Relay, X.25,ISDN, RIP, RIP-2, PPP, MLPPP, SDLC, HDLC,SLIP, fcby[hjyysq, Ethernet.

SPS-3S, SPS-6 b SPS-12 vjuenjceotcndkznm rjvvenfwb/ gfrtnjd vt;lehfpkbxysvb ghbkj;tybzvb> rfryfghbvth> bp X.25 d X.25> bp X.25 dj FrameRelay> bp Frame Relay dj Frame Relay> b bpSLIP d SLIP. Jyb nfr;t vjuenbyrfgcekbhjdfnm hfpkbxyst ghjnjrjks djFrame Relay b X.25.

SPS nfr;t zdkztncz eybrfkmysvhtitybtv lkz nhflbwbjyys[ eckeugthtlfxb lfyys[ gj dscjrjcrjhjcnysvctnzv IP gentv byrfgcekzwbb lfyys[ dgfrtns IP.

Dcnhjtyysq futyn SMNP gjpdjkztnjceotcndkznm rjyabuehfwb/ cbcntvsb rjvgbkzwb/ cnfnbcnbxtcrb[ lfyys[>jnxtnjd j cjcnjzybb b lbfuyjcnbrblfyys[. Ljcneg r futyne djpvj;ty c

k/,juj vtcnf ctnb. Tuj vj;yjpfghjuhfvvbhjdfnm lkz gthbjlbxtcrjqjnghfdrb cnfnbcnbxtcrb[ jnxtnjd bkbjnxtnjd j cjcnjzybb b#bkb gthtlfdfnm'ne byajhvfwb/ d dblt fdfhbqyjujcbuyfkf.

Futyn SNMP jceotcndkztn eghfdktybtc gjvjom/ uhfabxtcrjuj bynthatqcfgjkmpjdfntkz RADview PC bkbHP OpenView#UNIX> xnj gjpdjkztncrjyabuehbhjdfnm ecnhjqcndj b eghfdkznmbv xthtp ctnm X.25#FR. Jy vj;tngjcskfnm ghthsdfybz d cnfywb/eghfdktybz b gjllth;bdftn dctcnfylfhnyst ,fps MIB.

Rfyfkmyst bynthatqcs bvt/n vjlekmyjtbcgjkytybt b vjuen ,snm pfrfpfys lkzRS-232#V.24> V.35> RS-530> X.21> V.36b bynthatqcs ISDN “S” b “U”. Rf;lsqbynthatqc vj;tn ,snm ds,hfy rfr DCEbkb DTE. B ghjnjrjk> b bynthatqc vjuends,bhfnmcz lkz k/,juj gjhnf ytpfdbcbvjlheu jn lheuf.

SPS-3S, SPS-6 b SPS-12 dsgecrf/ncz djnltkmyjv rjycnhernbdyjv bcgjkytybbdscjnjq 1U. Ibhbyf SPS-3S cjcnfdkztngjkjdbye 19$> ibhbyf SPS-6 b SPS-12 - 19$.

SPS-2HS, SPS-3Vbybfn/hyst ecnhjqcndf ljcnegflkz gfrtnyjq rjvvenfwbb

Ecnhjqcndf SPS-2HS b SPS-3 - vbybfn/hystghtj,hfpjdfntkb ghjnjrjkjd bvyjujghjnjrjkmyst rjvvenfnjhs gfrtnjd>lf/obt djpvj;yjcnm gjkmpjdfntkzvjceotcndkznm cdzpm xthtp Frame Relay bkb{.25. R cnfylfhnysv ghbkj;tybzvjnyjczncz%• byrfgcekzwbz IP/SLIP d ctnb Frame Relay

bkb {.25 c bcgjkmpjdfybtv cnfylfhnyjqbyrfgcekzwbb RFC 1490 bkb RFC 1356!cv. Hbc. 1@

• ghjphfxyfz byrfgcekzwbz ghjnjrjkf HDLCd ctnb Frame Relay bkb {.25 !yfghbvth>cjtlbybntkmyst vjcns bkbvfhihenbpfnjhs d ctnb Frame Relaybkb {.25 - cv. Hbc. 2@

• byrfgcekzwbz {.25 d {.25 gj Frame Relay."nj ghtj,hfpjdfybt lftn djpvj;yjcnmjhufybpfwbzv cj[hfybnm cdjb pfnhfns yfj,jheljdfybt {.25 b dsbuhfnm jn'rjyjvbb d hfc[jlf[ yf cdzpm xthtp ctnmFrame Relay> yt pfvtyzz j,jheljdfybtbkb ghbkj;tybz

Vbybfn/hyst ecnhjqcndf SPS-2HS b SPS-3nht,e/n ghbvtytybz dytiytuj bcnjxybrfgbnfybz.

2 Mbps 2 Mbps

SPS-2HS

HDLC

SPS-2HS

HDLC

Bridge/router

IP,

Frame Relay

or X.25

NetworkBridge/router

SPS-3

Cash

machine

BackupPSTN

Frame Relay

Headquarters

Hbc. 1

SPS-3 cke;bn lkz gjlrk/xtybz ,fyrjdcrb[ fdnjvfnjd r wtynhfkmyjve jabcegj ctnb Frame Relay

Hbc. 2

Cjtlbytybt dscjrjcrjhjcnys[ vjcnjd#vfhihenbpfnjhjd gj ctnb Frame Relay#X.25

• Lde[-bkb nht[gjhnjdst vbybfn/hystvyjujghjnjrjkmyst rjvvenfnjhs gfrtnjd

• Vbybfn/hyst ghtj,hfpjdfntkb ghjnjrjkjd

• Gjllth;bdftvst ghjnjrjks% Frame Relay>{.25> HDLC, SLIP> fcby[hjyysq

• Gjllth;rf IP:– Vfhihenbpfwbz IP– Cnfylfhnyfz byrfgcekzwbz IP

d ctnz[ Frame Relay (RFC 1490)bkb X.25 !RFC 1356@

• Vyjujflhtcyfz gthtlfxf {.25


• Eghfdktybt SNMP c gjvjom/ghbkj;tybz RADview yf HC bkb cnfywbb HP OpenView/UNIX

• Crjhjcnm gthtlfxb lfyys[ gjvyjujghjnjrjkmysv kbybzv SPS-3: lj 64 R,bn#c yf vyjujghjnjrjkmye/kbyb/SPS-2HS% cevvfhyfz crjhjcnm gthtlfxblfyys[ lj 2 V,bn#c

• BynthatqcsSPS-3: V.24/RS-232SPS-2HS: V.24/RS-232, V.35 bkb X.21



FR

TN

YF

Z R

JV

VE

NF

WB

Z

Backup

Ethernet

ISDN or

PSTN

Network

Frame Relay

or X.25

NetworkAPS-8

STM-24

STM-24

Host

Headquarters

Branch B

Branch C

Branch A

APS-16

APS-24

1

72APS-24

IP,

Frame Relay

or X.25

Network

APS-8

STM-24

APS-8, APS-16, APS-248> 16 b 24-[ rfyfkmyst vyjujghjnjrjkmystFRAD/PAD b rjvvenfnjhs

APS-8> APS-16 b APS-24 -dscjrjghjbpdjlbntkmyst gfrtnystflfgnths X.25#FRAD lkz ljcnegf r ctnzvFrame Relay bkb X.25. Xbckj fcby[hjyys[rfyfkjd vj;tn ,snm hfcibhtyj cgjvjom/ dytiytuj cnfnbcnbxtcrjujvekmnbgktrcjhf ctvtqcndf STM rjvgfybbRAD. D jlyjq njxrt ljcnegf r ctnb vjuen,snm vekmnbgktrcbhjdfys lj 72fcby[hjyys[ rfyfkjd. Dct rfyfksrjyabuehbhe/ncz b rjynhjkbhe/nczfutynjv eghfdktybz ecnhjqcndf APS. Dctfcby[hjyyst rfyfks vjuen ltqcndjdfnm dcjjndtncndbb c htrjvtylfwbzvb X.3> X.28b X.29. Fcby[hjyysq nhfabr vj;tn ,snmgfrtnbpbhjdfy ytgjchtlcndtyyj gj ctnbFrame Relay bkb gj ghjnjrjke X.25 cbyrfgcekzwbtq gj ctnb Frame Relay.

Ecnhjqcndf APS bltfkmyj gjl[jlzn lkzghbkj;tybq> rjulf nht,etncz ,jkmijt

xbckj fcby[hjyys[ rfyfkjd> dutnthjutyyjq chtlt> ult cjxtnf/nczfcby[hjyysq nhfabr c cby[hjyysvnhfabrjv bkb nhfabrjv kjrfkmyjq ctnb> bd ghbkj;tybz[> rjnjhst nht,e/n> dpfdbcbvjcnb jn pflfxb> htpthdbhjdfybz>ghjgecryjq cgjcj,yjcnb gj nht,jdfyb/bkb d[jlzotuj cjtlbytybz gjrjvvenbhetvjq kbybb.

APS nfr;t zdkztncz eybrfkmysvhtitybtv lkz nhflbwbjyys[ eckeugthtlfxb lfyys[ gj dscjrjcrjhjcnysvctnzv IP gentv byrfgcekzwbb lfyys[ dgfrtns IP.

Ecnhjqcndf APS gjpdjkz/n yflt;ysvj,hfpjv cjdthibnm gtht[jl jnghbkj;tybq nthvbyfk#[jcn rghbkj;tybzv rkbtyn#cthdth.

• FRAD/X.25 PAD lkz 8> 16 b 24 fcby[hjyys[rfyfkjd

• Gjllth;rf ghjnjrjkjd% Frame Relay> X.25>ISDN> HDLC> SLIP> fcby[hjyysq> Ethernet, PPP,MLPPP, RIP, RIP-2

• Gjllth;rf IP% – Vfhihenbpfwbz IP– Cnfylfhnyfz byrfgcekzwbz IP

gj ctnzv Frame Relay !RFC 1490@bkb X.25 !RFC 1356@ bkb xthtpEthernet



• Dcnhjtyysq nthvbyfkmysq flfgnth ISDN

• Eghfdktybt SNMP xthtp ghbkj;tybt RADviewlkz PC bkb HP OpenView




• Gjllth;rf Telnet

• Vyjujflhtcyfz gthtlfxf X.25/Frame Relay

• Ibhjrbq yf,jh bynthatqcjd> drk/xfzCSU/DSU

• Cevvfhyfz ghjgecryfz cgjcj,yjcnmgj 3 vyjujghjnjrjkmysvb kbybzvblj 2 V,bn#c

• Crjhjcnm gthtlfxb lfyys[ gj fcby[hjyysvrfyfkfv lj 115.2 R,bn#c


G F R T N Y F Z R J V V E N F W B Z

APD-2HSVbybfn/hysq FRAD/X.25 PAD

APD-2HS ghtlcnfdkztn cj,jq FRAD/X.25PAD lkz gjlrk/xtybz lde[ fcby[hjyys[rfyfkjd r ctnzv Frame Relay b X.25.

J,f rfyfkf rjyabuehbhe/nczb rjynhjkbhe/ncz futynjv vtytl;vtynfecnhjqcndf APD-2HS. Fcby[hjyyst rfyfksvjuen ltqcndjdfnm d cjjndtncndbb chtrjvtylfwbzvb X.3> X.28 b X.29 bkbghjnjrjkjv SLIP. Fcby[hjyysq nhfabrvj;tn ,snm gfrtnbpbhjdfyytgjchtlcndtyyj gj ctnb Frame Relay bkbgj ghjnjrjke X.25 c byrfgcekzwbtq gjctnb Frame Relay.

Dcnhjtyysq futyn vtytl;vtynfgjpdjkztn jceotcndkznm rjyabuehfwb/cbcntvs b rjvgbkzwb/ cnfnbcnbxtcrb[lfyys[> jnxtnjd j cjcnjzybb blbfuyjcnbrb lfyys[. D cjcnfd ecnhjqcnd

d[jlbn futyn SNMP> xnj gjpdjkztnjceotcndkznm eghfdktybt RADview PC bkbHP OpenView.

Ecnhjqcndf ghjbpdjlzncz d vbybfn/hyjvrjhgect c 25-inshmrjdsv cjtlbybntktvnbgf D lkz rfyfkf cdzpb b c ldevzcjtlbybntkzvb RJ-45 lkz DTE. Nht,etnczdytiybq bcnjxybr gbnfybz.

• 2-[ rfyfkmysq fcby[hjyysq FRAD/PADc jlybv cby[hjyysv rfyfkjv Frame Relaybkb X.25

• IP byrfgcekzwbz gj ctnb Frame Relay!RFC 1490@ bkb X.25 !RFC 1356@

• SNMP eghfdktybt xthtp ghbkj;tybt RADviewlkz PC bkb HP OpenView

• Crjhjcnb gthtlfxb lfyys[ gj cby[hjyysvrfyfkfv lj 256 R,bn#c

• Crjhjcnb gthtlfxb lfyys[ gj fcby[hjyysvrfyfkfv lj 115.2 R,bn#c

• Bynthatqcs cby[hjyys[ rfyfkjdV.24#RS-232> V.35

V.35

APD-2HS

Async

X.25 or

Frame Relay

Network

APD-88-vb rfyfkmysq FRAD/X.25 PAD

APD-8

X.25

or

Frame

Relay

• 8-vb rfyfkmysq fcby[hjyysq FRAD/PAD cjlybv cby[hjyysv rfyfkjv Frame Relaybkb X.25

• IP byrfgcekzwbz gj ctnb Frame Relay!RFC 1490@ bkb X.25 !RFC 1356@

• Eghfdktybt SNMP xthtp ghbkj;tybt RADviewlkz PC bkb HP OpenView

• Dcnhjtyysq nthvbyfkmysq flfgnth ISDN

• Crjhjcnm gthtlfxb lfyys[ gj cby[hjyysvrfyfkfv lj 2 V,bn#c

• Crjhjcnm gthtlfxb lfyys[ gj fcby[hjyysvrfyfkfv lj 115.2 R,bn#c

• Bynthatqcs cby[hjyys[ rfyfkjd% V.24#RS-232> V.35> X.21> RS-530 b V.36

• Vj;tn hf,jnfnm rfr nthvbyfkmysq cthdth

APD-8 ghtlcnfdkztn cj,jq FRAD/X.25 PAD>rjnjhsq jceotcndkztn gjlrk/xtybtlj djcmvb fcby[hjyys[ rfyfkjd r ctnzvFrame Relay b X.25.

Dct rfyfks rjyabuehbhe/nczb rjynhjkbhe/ncz futynjv vtytl;vtynfecnhjqcndf APD-8. Dct fcby[hjyystrfyfks vjuen ltqcndjdfnm d cjjndtncndbbc htrjvtylfwbzvb X.3> X.28 b X.29 bkbghjnjrjkjv SLIP. Fcby[hjyysq nhfabrvj;tn ,snm gfrtnbpbhjdfy

ytgjchtlcndtyyj gj ctnb Frame Relay bkbgj ghjnjrjke X.25 c byrfgcekzwbtq gjctnb Frame Relay.

Dcnhjtyysq futyn vtytl;vtynfgjpdjkztn jceotcndkznm rjyabuehfwb/cbcntvs b rjvgbkzwb/ cnfnbcnbxtcrb[lfyys[> jnxtnjd j cjcnjzybb blbfuyjcnbxtcrb[ lfyys[. D cjcnfdecnhjqcnd d[jlbn futyn SNMP> xnjgjpdjkztn jceotcndkznm eghfdktybtRADview PC bkb HP OpenView.

Ecnhjqcndj APD-8 dsgecrftncz djnltkmyjv rjycnhernbdyjv bcgjkytybbdscjnjq 1U. Ldf ecnhjqcndf vjuenecnfyfdkbdfnmcz hzljv d cnjqrt 19$.



FR

TN

YF

Z R

JV

VE

NF

WB

Z


V E K M N B G K T R C J H S L F Y Y S {

STM-8, STM-16HS, STM-24,STM-24HS8> 16 b 24-[ rfyfkmystcnfnbcnbxtcrbt vekmnbgktrcjhs

STM-2

19.2 kbps 19.2 kbps

Sync

Modem

Sync

ModemSTM-2

19.2 kbps

19.2 kbps

19.2 kbps

19.2 kbps

STM-16HS

STM-24HS

19.2 kbps 19.2 kbps

CSU/LTU CSU/LTU

DDS

line

STM-16HS

STM-24HS

64 kbps 64 kbps

STM-8

Sync

modem

Sync

modem STM-8

STM-2Vbybfn/hysq 2-[ rfyfkmysqcnfnbcnbxtcrbq vekmnbgktrcjh

ntcnbhjdfybz. Pfobnf ljcnegf c gjvjom/gfhjkz ghtljndhfoftn djpvj;yjcnmytcfyrwbjybhjdfyyjuj bpvtytybzrjyabuehfwbb.

D STM-2 ghtlecvjnhtyf djpvj;yjcnmytpfdbcbvjuj fggfhfnyjuj bkbghjuhfvvyjuj rjynhjkz gjnjrf lfyys[lkz rf;ljuj gjlrfyfkf. "aatrnbdystchtlcndf j,yfhe;tybz jib,jr bfdnjvfnbxtcrfz gjdnjhyfz gthtlfxfj,tcgtxbdf/n ,tpjib,jxye/ cdzpm vt;lejrjytxysvb geyrnfvb.

Djpvj;yjcnb lbfuyjcnbrb gjpdjkz/nghjdjlbnm vtcnyst b lbcnfywbjyystghjdthrb gj iktqae yf gjlrfyfkf[ bkbyf cjdvtotyyjv rfyfkt> f nfr;t

ghjdthre vjltvjd vtnjljv j,hfnyjqgthtlfxb gj cnfylfhne V.54 yfcjdvtotyyjv rfyfkt.

D STM-2 bvttncz 'ythujytpfdbcbvfzgfvznm lkz cj[hfytybzpfghjuhfvvbhjdfyyjq rjyabuehfwbb. C gjvjom/ rjvfyls> htfkbpetvjqghjuhfvvysvb chtlcndfvb>jceotcndkztncz pfuheprf gfhfvtnhjd gjkbybb cdzpb.

STM-2 dsgecrftncz d vbybfn/hyjvrjhgect c 25-inshmrjdsv hfp(tvjv D-nbgf lkz ghbcjtlbytybz r rfyfke cdzpbb ldevz hfp(tvfvb RJ-45 lkzgjlrk/xtybz ecnhjqcnd DTE. STM-2hf,jnftn jn dytiytuj bcnjxybrf gbnfybz.

• J,tcgtxbdftn vekmnbgktrcye/ gthtlfxe lde[fcby[hjyys[ rfyfkjd gj jlyjve cby[hjyyjverfyfke cdzpb

• Crjhjcnm gthtlfxb lfyys[ gj gjlrfyfkfv bcjdvtotyyjve rfyfke lj 19.2 R,bn#c

• Fggfhfnysq bkb ghjuhfvvysq rjynhjkmgjnjrf lfyys[

• Gjlfxf rjvfyl eghfdktybz d ht;bvt vty/ jnk/,juj gjhnf gjlrfyfkf

• Pfuheprf gfhfvtnhjd gj kbybb cdzpb

Vbybfn/hysq cnfnbcnbxtcrbq vekmnbgktrcjh STM-2 j,tcgtxbdftn vekmnbgktrcye/ gthtlfxe lde[fcby[hjyys[ rfyfkjd gj jlyjve cby[hjyyjvecjdvtotyyjve rfyfke cdzpb cj crjhjcnm/ jn 300 ,bn#c lj 19.2 R,bn#c. Crjhjcnm gthtlfxblfyys[ gj cjdvtotyyjve rfyfke lj 19.2 R,bn#c.

Rf;lsq gjlrfyfk vj;tn bcgjkmpjdfnmcz rfreghfdkz/obq gjhn lkz rjyabuehbhjdfybz dctqcbcntvs bkb lkz ghjdtltybz lbfuyjcnbxtcrjuj

• J,tcgtxbdf/n gthtlfxevekmnbgktrcbhjdfyyjuj nhfabrf 8> 16 bkb 24fcby[hjyys[ rfyfkjd gj jlyjve cby[hjyyjverfyfke cdzpb

• Crjhjcnm gthtlfxb lfyys[ gj gjlrfyfkfv lj 19.2 R,bn#c

• Crjhjcnm gthtlfxb lfyys[ gj cjdvtotyyjve STM-8, STM-24: lj 19.2 R,bn#c STM-16HS, STM-24HS: lj 64 R,bn#c


• Gjlfxf rjvfyl eghfdktybz d ht;bvt vty/ jnk/,juj gjhnf gjlrfyfkf

• Pfobnf ljcnegf c gjvjom/ gfhjkz


• Gjllth;bdftncz ghbvtytybtvekmnbgktrcjhjd STM c rjvvenfnjhfvbgfrtnjd APS, SPS lkz hfcibhtybz PAD/FRAD

Cnfnbcnbxtcrbt vekmnbgktrcjhs STM-8,STM-16HS, STM-24 b STM-24HSj,tcgtxbdf/n gthtlfxevekmnbgktrcbhjdfyyjuj nhfabrfcjjndtncndtyyj 8> 16 bkb 24 fcby[hjyys[rfyfkjd gj jlyjve cby[hjyyjvecjdvtotyyjve rfyfke cdzpb cj crjhjcnm/lj 19.2 R,bn#c. Vjltkb STM-16HS b STM-24HS gjllth;bdf/n gthtlfxe lfyys[gj dscjrjcrjhjcnyjve rfyfke cdzpb cjcrjhjcnm/ lj 64 R,bn#c yf bynthatqctV.24/RS-232, V.35, X.21 bkb RS-530. Rf;lsqgjlrfyfk vj;tn bcgjkmpjdfnmcz rfreghfdkz/obq gjhn lkz rjyabuehbhjdfybzbkb lkz lbfuyjcnbrb c gjvjom/ gfhjkz. Dvekmnbgktrcjhf[ STM ghtlecvjnhtyfdjpvj;yjcnm ytpfdbcbvjuj fggfhfnyjujbkb ghjuhfvvyjuj rjynhjkz gjnjrf lfyys[

lkz rf;ljuj gjlrfyfkf. "aatrnbdystchtlcndf j,yfhe;tybz jib,jr bfdnjvfnbxtcrfz gjdnjhyfz gthtlfxfj,tcgtxbdf/n ,tpjib,jxye/ cdzpm vt;lejrjytxysvb geyrnfvb. Djpvj;yjcnblbfuyjcnbrb gjpdjkz/n ghjdjlbnm vtcnystb lbcnfywbjyyst ghjdthrb gj iktqae yfgjlrfyfkf[ bkb yf cjdvtotyyjv rfyfkt. Cgjvjom/ rjvfyls> htfkbpetvjqghjuhfvvysvb chtlcndfvb>jceotcndkztncz pfuheprf gfhfvtnhjd gjkbybb cdzpb. Ecnhjqcndf STM vjuenbcgjkmpjdfnmcz rfr hfcibhtybt gjhnjd lkzecnhjqcnd gfrtnyjq rjvvenfwbb APS b SPS.

Gjlrk/xtybt gjlrfyfkjd ghjbpdjlbncz cgjvjom/ hfp(tvjd RJ-45, hfcgjkj;tyys[yf gthtlytq gfytkb.

153RAD Data Communications 2005 Catalog

V E K M N B G K T R C J H S L F Y Y S { 12V

EK

MN

BG

KT

RC

JH

S L

FY

YS

{

STM-4

19.2 kbps 19.2 kbps

Sync

modem

STM-4Sync

modem

9.6

19.2

19.2

19.2

19.2

19.2

4.8

9.6

STM-44-[ rfyfkmysq cnfnbcnbxtcrbq vekmnbgktrcjh

• J,tcgtxbdftn vekmnbgktrcye/ gthtlfxextnsht[ fcby[hjyys[ rfyfkjd gj jlyjvecby[hjyyjve rfyfke cdzpb

• Crjhjcnm gthtlfxb lfyys[ gj gjlrfyfkfv bcjdvtotyyjve rfyfke lj 19.2 R,bn#c


• Gjlfxf rjvfyl eghfdktybz d ht;bvt vty/jn k/,juj gjhnf gjlrfyfkf

• Pfobnf ljcnegf r rjyabuehfwbb cbcntvs cgjvjom/ gfhjkz


• Ibhjrbt djpvj;yjcnb lbfuyjcnbrb

Cnfnbcnbxtcrbq vekmnbgktrcjh STM-4vekmnbgktrcbhetn xtnsht fcby[hjyys[ rfyfkf cjcrjhjcnm/ jn 300 ,bn#c lj 19.2 R,bn#c gj jlyjvecby[hjyyjve cjdvtotyyjve rfyfke cdzpb yf 19.2 R,bn#c.

Rf;lsq gjlrfyfk vj;tn bcgjkmpjdfnmcz rfr

eghfdkz/obq gjhn lkz rjyabuehbhjdfybzdctq cbcntvs bkb lkz ghjdtltybzlbfuyjcnbxtcrjuj ntcnbhjdfybz. D STM-4ghtlecvjnhtyf djpvj;yjcnmytpfdbcbvjuj fggfhfnyjuj bkbghjuhfvvyjuj rjynhjkz gjnjrf lfyys[lkz rf;ljuj gjlrfyfkf. Bcgjkmpjdfybtytcrjkmrb[ cbvdjkjd lkz X-ON b X-OFFj,tcgtxbdftn cjdvtcnbvjcnm c,jkmibycndjv ghbkj;tybq. "aatrnbdystchtlcndf j,yfhe;tybz jib,jr bfdnjvfnbxtcrfz gjdnjhyfz gthtlfxfj,tcgtxbdf/n ,tpjib,jxye/ cdzpm vt;lejrjytxysvb geyrnfvb. Djpvj;yjcnblbfuyjcnbrb gjpdjkz/n ghjdjlbnmvtcnyst b lbcnfywbjyyst ghjdthrb gjiktqae yf gjlrfyfkf[ bkb yfcjdvtotyyjv rfyfkt> f nfr;t ghjdthrevjltvjd vtnjljv j,hfnyjq gthtlfxb gjcnfylfhne V.54 yf cjdvtotyyjv rfyfkt. D

STM-4 bvttncz 'ythujytpfdbcbvfz gfvznmlkz cj[hfytybz pfghjuhfvvbhjdfyyjqrjyabuehfwbb. C gjvjom/ rjvfyls>htfkbpetvjq ghjuhfvvysvb chtlcndfvb>jceotcndkztncz pfuheprf gfhfvtnhjd gjkbybb cdzpb.STM-4 dsgecrftncz d nht[ bcgjkytybz[%vbybfn/hyfz vjltkm d gkfcnbrjdjvrjhgect& d jnltkmyjv rjycnhernbdyjvbcgjkytybb d vtnfkkbxtcrjv rjhgectdscjnjq 1U; d dblt gkfns lkz ecnfyjdrb dcnjqrt 19”> dvtof/otq 14 gkfn.

STM-4 d vbybfn/hyjv rjhgectdsgecrftncz c 25-inshmrjdsvbhfp(tvfvb. Vekmnbgktrcjh> dsgecrftvsqd jnltkmyjv rjycnhernbdyjv bcgjkytybb>cyf,;ty cgtwbfkmysv ghbcgjcj,ktybtvlkz ecnfyjdrb d cnjqrt 19”. D ytvbvt/ncz xtnsht hfp(tvf RJ-45,hfcgjkj;tyyst yf gthtlytq gfytkb.

FLM-1, FLM-212-nb rfyfkmyst vekmnbgktrcjhs

Async

computer

FLM-1

Fiber optic12 channels

FLM-1

• Vekmnbgktrcjh TDM cj dcnhjtyysvvjltvjv

• FLM-1% lj 12 fcby[hjyys[ gjlrfyfkjdFLM-2% lj 12 cby[hjyys[ b fcby[hjyys[gjlrfyfkjd

• Crjhjcnm d gjlrfyfkf[ lj 38.4 R,bn#c

• Jgnjdjkjryj bkb dbnfz gfhf yf ukfdyjvrfyfkt

• Cjtlbytybt $njxrf-njxrf$ bkb $rjkmwj$

• Lfkmyjcnm lj 5 rv gj jgnjdjkjrye> lj 1.6 rvgj dbnjq gfht

Vekmnbgktrcjhs FLM-1 b FLM-2 c hfpltktybtv gjdhtvtyb gjpdjkz/n gjlrk/xbnm r jlyjve rf,tk/lj 12 nthvbyfkjd. Dcnhjtyysq vjltv gthtlftndscjrjcrjhjcnyjq gjnjr vekmnbgktrcbhjdfyys[lfyys[ gj cldjtyyjve jgnjdjkjrjyyjve rf,tk/.

Ecnhjqcndf FLM vekmnbgktrcbhe/n 12 ytpfdbcbvs[

cbuyfkjd. "nj vjuen ,snm itcnm rfyfkjdlfyys[ b gj jlyjve eghfdkz/otvecbuyfke lkz rf;ljuj rfyfkf> bkb 12rfyfkjd> cjlth;fob[ njkmrj lfyyst.

D ecnhjqcndt FLM-2 nhb bp ldtyflwfnbgjlrfyfkjd vjuen hf,jnfnm d cby[hjyyjvht;bvt> bcgjkmpez nfrnjde/ xfcnjneecnhjqcndf. Crjhjcnm hf,jns rf;ljujgjlrfyfkf ds,bhftncz ytpfdbcbvj jnjcnfkmys[. Cby[hjybpfwbz gthtlfxbvj;tn jceotcndkznmcz%• jn dyenhtyytuj bcnjxybrf• jn dytiytuj bcnjxybrf• jn ghbybvftvjuj cbuyfkf

D rfxtcndt chtlcnd lbfuyjcnbrbgjllth;bdf/ncz kjrfkmyst b elfktyyst

wbahjdst ghjdthrb gj iktqae>pfgecrftvst ghb gjvjobgthtrk/xfntktq b bylbrfnjhjd yfgthtlytq gfytkb. Cdtnjlbjlystbylbrfnjhs gjrfpsdf/n yfkbxbt gbnfybz>ht;bv ntcnbhjdfybz> gjnth/cby[hjybpfwbb c kjrfkmysv b elfktyysvecnhjqcndfvb.

Vekmnbgktrcjhs bvt/n 12 bynthatqcjdRS-232#V.24 b jcyfotys kb,j itcnm/hfp(tvfvb DB-25f> kb,j 12 hfp(tvfvb RJ-45.

FLM-1 b FLM-2 dsgecrf/ncz d dbltfdnjyjvys[ ecnhjqcnd b vjuenrjvgktrnjdfnmcz rhtgktybzvb lkzecnfyjdrb d cnjqre 19$.


E C N H J Q C N D F H F P L T K T Y B Z

RSD-1, RSD-104-[ b 8-vb rfyfkmyst ghjuhfvvbhetvstecnhjqcndf hfpltktybz rfyfkjd

MPS2-[ rfyfkmyjt ecnhjqcndj hfpltktybz gjhnf

RSD-1/10Modem

Modem

Modem

Modem19.2 kbps

4/8 channels

• RSD-1: xtnsht gjlrfyfkfRSD-10: djctvm gjlrfyfkjd

• K/,fz rjv,byfwbz vjltvjd (DCE)b nthvbyfkjd (DTE)

• Cby[hjyyfz b fcby[hjyyfz gthtlfxf lfyys[cj crjhjcnm/ lj 19.2 R,bn#c

• Bynthatqc RS-232/V.24

• Fdnjvfnbxtcrjt dsrk/xtybt bp hf,jnsgjlrfyfkf gthtlfxb lfyys[

• Hf,jnftn c vjltvfvb gj rjvvenbhetvsv bkbdsltktyysv kbybzv

• Dyenhtyybq bkb dytiybq bcnjxybrcby[hjbvgekmcjd

Wbahjdst ecnhjqcndf hfpltktybz rfyfkjd RSD-1 bRSD-10 ljgecrf/n djpvj;yjcnm gjlrk/xtybz k/,jqrjv,byfwbb> drk/xf/otq lj djcmvb vjltvjd (DCE)b#bkb nthvbyfkjd DTEs lkz cjdvtcnyjujbcgjkmpjdfybz htcehcjd% vjltvf> vekmnbgktrcjhfbkb gjhnf rjvgm/nthf.

Vbybfn/hysq gthtrk/xfntkm gjhnjd MPSghtlyfpyfxty lkz cbcntv cfdnjvfnbxtcrbv jghjcjv elfktyys[ecnhjqcnd b gjpdjkztn gjlrk/xbnm rjlyjve gjhne rjvgm/nthf ldf vjltvf.Cjtlbytybt c frnbdysv vjltvjvghjbpdjlbncz gj cbuyfke DCD bkb gjyfxfke gthtlfxb lfyys[.

Ecnhjqcndj vj;tn hf,jnfnm d cby[hjyyjvbkb fcby[hjyyjv ht;bvt cj crjhjcnm/lj 19.2 R,bn#c. Cby[hjybpfwbzghjbpdjlbncz jn dyenhtyytuj bcnjxybrf.

MPS yt ye;lftncz dj dytiytv bcnjxybrtgbnfybz> gjcrjkmre gjnht,kztnyt,jkmie/ vjoyjcnm. Gbnfybtecnhjqcndf jceotcndkztncz jn cbuyfkjdlfyys[ b eghfdktybz.

Modem

MPS

Modem

Modem Modem

• Cby[hjyysq b fcby[hjyysq ht;bvs

• Crjhjcnm lj 19.2 R,bn#c

• Gthtrk/xtybt gj cbuyfke DCD bkb gj rjyakbrne lfyys[

• Yt nht,etn bcnjxybrf gbnfybz

Ecnhjqcndf RSD-1 b RSD-10 gjkyjcnm/ghjphfxys lkz cbcntvs b lkz lfyys[ bhf,jnf/n c cby[hjyysv bkb fcby[hjyysvj,jheljdfybtv. Lkz cby[hjybpfwbb cke;bndyenhtyybq nfrnjdsq utythfnjh bkbbcgjkmpe/ncz dytiybt cby[hjbvgekmcs jnukfdyjuj rfyfkf bkb jn gjlrfyfkf 1. Lkzecnhfytybz dkbzybz hfpyjcnb afpcby[hjbvgekmcjd bcgjkmpetncz16-hfphzlysq ,eath.

Jn ukfdyjuj rfyfkf gjcskftnczbyajhvfwbz yf dct gjlrfyfksgfhfkktkmyj. Gjlrfyfks dcnegf/n dcjcnzpfybt pf ghfdj gthtlfxb lfyys[ gjukfdyjve rfyfke gentv frnbdbpfwbbRTS/DCD bkb gjchtlcndjv gthtlfxb lfyys[.

Ecnhjqcndf RSD-1 b RSD-10 vjuen ,snm

crjyabuehbhjdfys yf fdnjvfnbxtcrjtdsrk/xtybt bp hf,jns gjlrfyfkf> rjnjhsqltqcndetn ljkmit pflfyyjuj dhtvtybb ,kjrbhetn dct jcnfkmyst gjlrfyfks.C gjvjom/ gthtrk/xfntktq yf gthtlytqgfytkb vj;yj jnrk/xfnm gjlrfyfks yfcrjkm eujlyj lkbntkmyjt dhtvz.

Ecnfyjdrf b rjyabuehbhjdfybt RSD-1 bRSD-10 ghjcns. Dct ytj,[jlbvst rhjcc-gjlrk/xtybz jceotcndkz/ncz dyenhbecnhjqcndf c gjvjom/ gthtrk/xfntkzDCE/DTE, gj'njve lkz gjlrk/xtybz r RSD-1b RSD-10 vjltvjd bkb nthvbyfkjdnht,e/ncz njkmrj j,sryjdtyystcjtlbybntkmyst rf,tkb. D RSD-1 b RSD-10bvttncz bynthatqc RS-232 b 25-inshmrjdst hfp(tvs D-nbgf !uytplf@.


E C N H J Q C N D F H F P L T K T Y B Z 12E

CN

HJ

QC

ND

F H

FP

LT

KT

YB

Z

Modem Modem

MSD

IBM 37X5

IBM 3274

MSD8-vb rfyfkmyjt ecnhjqcndj hfpltktybz vjltvf

Hfpltkbntkm vjltvf MSD ghtlyfpyfxtylkz cbcntv c fdnjvfnbxtcrbv jghjcjvelfktyys[ ecnhjqcnd b gjpdjkztn djcmvbnthvbyfkfv bcgjkmpjdfnm jlby j,obqvjltv bkb gjhn vekmnbgktrcjhf. MSDjcyfoty xtnshmvz hfp(tvfvb> rjnjhstvjuen gjllth;bdfnm lj xtnsht[ rfyfkjdlfyys[ bkb - ghb gjvjob rf,tktq-eldjbntktq - lj djcmvb rfyfkjd.

Ecnhjqcndj vj;tn hf,jnfnm d cby[hjyyjvbkb fcby[hjyyjv ht;bvt cj crjhjcnm/lj 19.2 R,bn#c b gjkyjcnm/ ghjphfxyjlkz cbcntvs b lkz lfyys[.Cby[hjybpfwbz ghjbpdjlbncz jndytiytuj bcnjxybrf d ukfdyjv rfyfkt.

Lfyyst> gjcnegf/obt bp ukfdyjuj rfyfkf>nhfyckbhe/ncz gfhfkktkmyj dj dctgjlrfyfks. Lkz gthtlfxb lfyys[ dukfdysq rfyfk ds,jh frnbdyjuj gjlrfyfkfghjbpdjlbncz gj gjlyznb/ cbuyfkf RTSbkb gj yfxfke gthtlfxb lfyys[. Ltdznmcdtnjlbjlys[ bylbrfnjhjd gjrfpsdf/ncjcnjzybt ukfdyjuj rfyfkf b rf;ljuj bpgjlrfyfkjd.

MSD kturj ecnfyfdkbdftncz ghb gjvjobrf,tktq c ghzvjq hfcgfqrjq. Ecnhjqcndjyt ye;lftncz dj dytiytv bcnjxybrtgbnfybz> gjcrjkmre gjnht,kztnyt,jkmie/ vjoyjcnm. Gbnfybtjceotcndkztncz jn cbuyfkjd lfyys[ beghfdktybz.

MMS2-[ rfyfkmyjt ecnhjqcndj hfpltktybz vjltvf

Modem Modem

MMS

Computer

• Ldf rfyfkf



• Djpvj;yjcnm rfcrflbhjdfybz

• Gthtrk/xtybt gj cbuyfke RTS


Vbybfn/hysq hfpltkbntkm vjltvf MMSghtlyfpyfxty lkz cbcntv cfdnjvfnbxtcrbv jghjcjv elfktyys[ecnhjqcnd b gjpdjkztn ldev nthvbyfkfvbcgjkmpjdfnm jlby j,obq vjltv bkbgjhn vekmnbgktrcjhf.

Ecnhjqcndj vj;tn hf,jnfnm d cby[hjyyjvbkb fcby[hjyyjv ht;bvt cj crjhjcnm/lj 19.2 R,bn#c b gjkyjcnm/ ghjphfxyjlkz cbcntvs b lkz lfyys[.Cby[hjybpfwbz ghjbpdjlbncz jn

dytiytuj bcnjxybrf d ukfdyjv rfyfkt.

Cjtlbytybt c frnbdysv gjlrfyfkjv lkzgthtlfxb ghjbpdjlbncz gj gjlyznb/cbuyfkf RTS.

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Ctntdst ecnhjqcndf - RGRCOM · DDTLTYBT D CTNTDST ECNHJQCNDF Ctntdst ecnhjqcndf D byajhvfwbjyyjv j,tcgtxtybb ghtlghbznbq b xfcnys[ gjkmpjdfntktq ... ISDN, HDLC, SLIP, PPP…