Chii chinonzi ONU device?

ONU (Optical Network Unit) optical network unit, ONU yakakamurwa kuita active optical network unit uye passive optical network unit. Kazhinji, zvishandiso zvine network monitoring zvinosanganisira optical receivers, upstream optical transmitters, uye multiple bridge amplifiers zvinonzi optical nodes. PON inoshandisa single optical fiber kubatanidza kuOLT, uye OLT inobatanidza kuONU. ONU inopa masevhisi akadai sedata, IPTV (kureva interactive network television), uye voice (ichishandisa IAD, kureva Integrated Access Device), zvichiita kuti zvikwanisike "triple-play" applications.

Zvinhu zvirimo

Sarudza kugamuchira data rekutepfenyura rinotumirwa neOLT;

Pindura mirairo yekudzora simba uye yekurasira inopihwa neOLT; uye gadzirisa zvinoenderana;

Chengetedza data reEthernet remushandisi woritumira kumusoro muhwindo rekutumira rakapihwa neOLT;

Tevedzera zvizere IEEE 802.3/802.3ah;

·Kunzwa kwemuviri kunosvika -25.5dBm;

·Tumira simba kusvika -1 kusvika +4dBm;

PON inoshandisa fiber imwe chete ye optical kuti ibatanidze kuOLT, uye OLT inobatanidza kuONU. ONU inopa masevhisi akadai sedata, IPTV (kureva terevhizheni yeinteractive network), uye izwi (ichishandisa IAD, kureva Integrated Access Device), zvichiita kuti pave nemapurogiramu e "triple-play";

·PON yepamusoro-soro: data repamusoro nerepasi re10Gb/s, masevhisi eVoIP voice neIP video;

· ONU "plug and play" zvichibva pakutsvaga otomatiki uye kugadzirisa;

·Mabasa emhando yepamusoro yebasa (QoS) zvichibva pakubhadhara chibvumirano chebasa (SLA);

·Kugona kwekutarisira kure kunotsigirwa nemabasa eOAM akapfuma uye ane simba;

·Kugamuchira chiedza chakanyanya uye kushandisa simba shoma rechiedza chinopinzwa;

·Kutsigira basa rekufema rinofa;

Kupatsanura

Chiedza chinoshanda

Chishandiso che "active optical network" chinoshandiswa zvakanyanya kana network nhatu dzabatanidzwa, uye chinobatanidza CATV full-band RF output; VOIP audio yemhando yepamusoro; three-layer routing mode, wireless access nezvimwe zvinhu, izvo zvinogona kuita kuti michina yekubatanidza terminal ishande zvakanaka.

Chiedza chisingashande

Passive ONU (Optical Network Unit) chishandiso chinoshandiswa neGEPON (Gigabit Passive Optical Network) system, iyo inoshandiswa kumisa masevhisi anotumirwa kubva kuOLT (Optical Line Terminal) kuburikidza neEPON (Passive Optical Network). Ichishanda pamwe chete neOLT, ONU inogona kupa masevhisi akasiyana-siyana ebroadband kune vashandisi vakabatana. Sekushandisa Internet surfing, VoIP, HDTV, VideoConference nemamwe masevhisi. ONU, semudziyo unoshandiswa nevashandisi veFTTx applications, chishandiso chine bandwidth yakawanda uye chinodhura zvishoma chinodiwa kuti chishanduke kubva ku "copper cable era" kuenda ku "optical fiber era". Semhinduro yekupedzisira yekuwana waya kwevashandisi, GEPON ONU ichaita basa guru mukuvaka network yese yeNGN (Next Generation Network) mune ramangwana.

UTStarcom ONU 1001i chishandiso chekushandisa chinodhura zvishoma chinoshandiswa mumasystem eGEPON. Chakagadzirirwa vashandisi vekumba nevanoshandisa SOHO, uye chinopa gigabit broadband connections kumagedhi evashandisi uye/kana maPC. ONU 1001i inopa imwe 1000Base-TEthernet network port yedata uye IPTV video services. ONU1001i inogona kugadziriswa uye kutarisirwa kure neUTStarcom BBS series optical line terminal (OLT).

chikumbiro

Nzvimbo yepamusoro yeONU 1001i yakabatana nehofisi yepakati (CO) kuburikidza nechiteshi cheGEPON, uye nzvimbo iri pasi ndeyevashandisi vega vega kana vashandisi veSOHO kupa chiteshi chenetiweki cheGigabit Ethernet. Semhinduro yeramangwana yeFTTx, ONU 1001i inopa masevhisi ane simba ezwi, data rinomhanya zvakanyanya uye mavhidhiyo kuburikidza neGEPON imwe chete.