Kana zvasvika kune mushandisi-parutivi michina mubroadband fiber kuwana, isu tinowanzo kuona mazwi echiRungu akadai seONU, ONT, SFU, uye HGU. Mashoko aya anorevei? Chii chakasiyana?
1. ONU uye ONTs
Iwo makuru ekushandisa marudzi ebroadband optical fiber yekuwana anosanganisira: FTTH, FTTO, uye FTTB, uye mafomu emushandisi-parutivi michina akasiyana pasi pemhando dzakasiyana dzekushandisa. Mushandisi-parutivi mudziyo weFTTH neFTTO unoshandiswa nemushandisi mumwechete, anonziONT(Optical network terminal, optical network terminal), uye mushandisi-parutivi michina yeFTTB inogovaniswa nevakawanda vashandisi, vanonzi.ONU(Optical Network Unit, optical network unit).
Mushandisi ataurwa pano anoreva mushandisi anobhadhariswa akazvimirira nemushandisi, kwete nhamba yematerminal anoshandiswa. Semuyenzaniso, iyo ONT yeFTTH inowanzogovaniswa neakawanda materminal mumba, asi mushandisi mumwe chete ndiye anogona kuverengerwa.
2. Mhando dzeONTs
ONT ndiyo yatinowanzo kudaidza kuti optical modem, iyo yakakamurwa kuita SFU (Single Family Unit, single family user unit), HGU (Home Gateway Unit, home gateway unit) uye SBU (Single Business Unit, single business user unit).
2.1. SFU
SFU kazhinji ine 1 kusvika 4 Ethernet interfaces, 1 kusvika 2 yakamisikidzwa nharembozha, uye mamwe mamodheru anewo tambo dzeTV. Iyo SFU haina gedhi repamba basa, uye chete terminal yakabatana neEthernet port inogona kufona kusvika paInternet, uye iyo kure manejimendi basa haina simba. Iyo optical modem inoshandiswa mukutanga nhanho yeFTTH ndeyeSFU, iyo isingawanzo kushandiswa ikozvino.
2.2. HGUs
Iwo optical modem ane FTTH vashandisi akavhurwa mumakore achangopfuura eseHGU. Kuenzaniswa neSFU, HGU ine zvinotevera zvakanakira:
(1) HGU mudziyo wegedhi, wakanakira network network; nepo SFU chiri chinhu chakajeka chekufambisa, icho chisina magedhi ekugonesa, uye kazhinji chinoda kushandirapamwe kwemidziyo yegedhi senge ma routers epamba mudzimba networking.
(2) HGU inotsigira routing mode uye ine NAT basa, iri layer-3 mudziyo; nepo SFU mhando inongo tsigira layer-2 bridging mode, iyo yakaenzana ne layer-2 switch.
(3) HGU inogona kushandisa yayo yeBroadband dial-up application, uye makomputa akabatana nematerminals enhare anogona kuwana zvakananga Internet pasina kufona; nepo SFU inofanirwa kufona nekombuta yemushandisi kana nhare mbozha kana kuburikidza nerouter yekumba.
(4) HGU iri nyore kune yakakura-chiyero chekushanda nekugadzirisa manejimendi.
HGU kazhinji inouya neWiFi uye ine USB port.
2.3. SBUs
Iyo SBU inonyanya kushandiswa kuwana FTTO mushandisi, uye kazhinji ine Ethernet interface, uye mamwe mamodheru ane E1 interface, landline interface, kana wifi basa. Kuenzaniswa neSFU neHGU, SBU ine kuchengetedzwa kwemagetsi kurinani uye kugadzikana kwepamusoro, uye inowanzoshandiswa muzviitiko zvekunze sekutarisa vhidhiyo.
3. ONUType
ONU yakakamurwa kuitaMDU(Multi-Dwelling Unit, multi-resident unit) uye MTU (Multi-Tenant Unit, multi-renant unit).
Iyo MDU inonyanya kushandiswa kuwana kwevazhinji vashandisi vekugara pasi peiyo FTTB application mhando, uye kazhinji ine angangoita mana mushandisi-parutivi nzvimbo, kazhinji iine 8, 16, 24 FE kana FE + POTS (yakagadziriswa nhare).
MTU inonyanya kushandiswa kuwana kwevazhinji vashandisi vebhizinesi kana akawanda materminal mubhizinesi rimwechete mune yeFTTB mamiriro. Mukuwedzera kune Ethernet interface uye yakagadziriswa nharembozha, inogonawo kuva neE1 interface; chimiro uye kushanda kweMTU kazhinji hazvina kufanana neizvo zveMDU. Kusiyana, asi magetsi ekudzivirira kushanda kuri nani uye kugadzikana kwakakwirira. Nekuzivikanwa kweFTTO, mamiriro ekushandisa eMTU ari kuita madiki uye mashoma.
4. Summary
Broadband optical fiber yekuwana inonyanya kutora tekinoroji yePON. Kana iyo chaiyo fomu yemushandisi-padivi midziyo isina kusiyaniswa, mushandisi-padivi midziyo yePON system inogona kunzi pamwe chete seONU.
ONU, ONT, SFU, HGU…izvi zvishandiso ose anotsanangura mushandisi-padivi midziyo yebroadband kuwana kubva kumakona akasiyana, uye hukama pakati pavo hunoratidzwa mumufananidzo uri pazasi.
Nguva yekutumira: Kubvumbi-21-2023