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Message: <blockquote data-quote="Dinesh Priyasad Perera" data-source="post: 15943665" data-attributes="member: 249352">Mama AYYA da, MALLI da kiyanna nam DANNE NEI. Namuth, HELP karannam. <img src="/styles/default/xenforo/smilies/default/happy.gif"  class="smilie" loading="lazy" alt=":)" title="Happy    :)" data-shortname=":)" />Mehemayi. ADSL (ASYMMETRIC DIGITAL SUBSCRIBER LINE) ekei DOWNSTREAM RATE (DOWNLOAD SPEED) eka DEPEND wenne DISTANCE eka anuwa. Ei nisa thamayi, TELEPHONE EXCHANGE ekei indan 4KMS RADIUS ekak ethule CUSTOMER PREMISES eka thiyenna ONEI kiyala kiyanne.Mokada, TELEPHONE EXCHANGE ekei thiyena DSLAM (DIGITAL SUBSCRIBER LINE ACCESS MULTIPLEXER) ekath, CUSTOMER PREMISES ekei thiyena LOCAL LOOP ekath CONNECT wenne COPPER CABLES walin. Ithin, DSLAM ekath, LOCAL LOOP ekath athare thiyena DISTANCE eka WEDI wena tharamata ATTENUATION (LOSS) eka WEDI wenawa. ATTANUATION kiyanne, "monawahari FORCE/POWER ekak koyi tharam WEAKEN wenawada?" kiyana MEASURE ekayi.HIGHER FREQUENCIES waladi ATTENUATION eka WEDI wela ERRORS ethi wenawa. Ithin, ATTENUATION eka ADU karanna LOWER FREQUENCIES tika USE karanna wenawa. Mei nisa, LONG DISTANCE ekak nam DOWNSTREAM RATE eka ADU wenawa.SLT eken DETERMINE karana widihata ATTENUATION eka 25 dB ta wadaa ADU wenna ONEI. Ehema wunoth, LINE CONDITION eka STABLE.Ei witharak neweyi, FREQUENCY RANGE eka ethule CHANNELS (BINS) walata DIVIDE karala thamayi STREAM karanne. Mei BINS wala FREQUENCIES godakma DEPEND wenawa SNR (SIGNAL-TO-NOISE RATIO) eka anuwa. SNR kiyanne "SIGNAL ekata RELATIVELY koyi tharam NOISE ekak thiyenawada?" kiyana MEASURE ekayi. SNR eka ADUYI nam NOISE eka WEDIYI wageima, SNR eka WEDIYI nam SIGNAL eka WEDIYI.Ithin, SNR eka WEDI wena tharamata BINS wala STRENGTH eka WEDI wenawa. Ethakota, TOTAL LINK CAPACITY eka WEDI wenawa. Mei nisa, DOWNSTREAM RATE eka WEDI wenawa.SLT eken DETERMINE karana widihata SNR eka 20 dB ta wadaa WEDI wenna ONEI. Ehema wunoth, LINE CONDITION eka STABLE.Kohomahari, DISTANCE eka wageima INTERFERENCE (ELECTROMAGNETIC/RF - RADIO FREQUENCY), CABLE QUALITY (AGE - OLD/NEW, GAUGE) kiyana FACTS wunath ATTENUATION ekath, RNS ekath ADU/WEDI karanna EFFECT wenawa. Ithin, Minimum 60% service quality will be maintained with respect to line speed supported. kiyanne mokada kiwwoth, mei kiyapu PROBLEMS nisa SLT ekata PROMISE wenna BEI, CUSTOMER wenuwen (DSLAM ekei indan LOCAL LOOP ekata wenakam) "100% SERVICE QUALITY ekak MAINTAIN karanawa" kiyala. Namuth, SLT eka PROMISE wenawa, kohomahari "60% SERVICE QUALITY ekak nam MAINTAIN karanna PULUWAN" kiyala.Mokada, mei kiyapu PROBLEMS okkoma thiyenne COPPER CABLE eka METALLIC (LOHAMAYA) nisa. Denata SLT eka FIBER-OPTIC CABLE eka USE karanne DSLAM ekath, ISP (INTERNET SERVICE PROVIDER) NETWORK ekath athare CONNECTIONS wenuwen WITHARAYI. Namuth, SLT ekei GOAL eka thamayi DSLAM ekath, LOCAL LOOP ekath athare CONNECTIONS wenuwen wunath FIBER-OPTIC CABLE eka USE karanna. Ethakota, SLT CUSTOMERS lata denata thiyena COPPER CABLES wenuwata FIBER-OPTIC CABLES lebenawa.Ethakota, SLT CUSTOMERS lata VDSL2 (VERY-HIGH-BIT-RATE DIGITAL SUBSCRIBER LINE 2) TECHNOLOGY ekath ekka 100MBPS wagei DOWNSTREAM RATE ekak lebenawa. 23RD MAY 2013 wala SLT ekei KEGALLE REGIONAL OFFICE ekeidi mei TECHNOLOGY eka INTRODUCE kalaa. Ethakota, 90MBPS withara DOWNSTREAM RATE ekak thibuna. <a href="http://www.slt.lk/content/slt%E2%80%99s-100mbps-super-fast-broadband-internet-goes-live-sri-lanka" target="_blank">http://www.slt.lk/content/slt’s-100mbps-super-fast-broadband-internet-goes-live-sri-lanka</a> Ithin, FIBER-OPTIC CABLE ekath ekka SLT ekata PULUWAN wenawa, "100% SERVICE QUALITY ekak MAINTAIN karanawa" kiyala PROMISE wenna. Mokada, FIBER-OPTIC CABLE eka NON-METALLIC (LOHAMAYA NOWANA) nisa RF/ELECTROMAGNETIC INTERFERENCE ekak NEI wageima DISTANCE ekath ekka SIGNAL STRENGTH eka WEAKEN wenne NEI.Thanks. <img src="/styles/default/xenforo/smilies/default/happy.gif"  class="smilie" loading="lazy" alt=":)" title="Happy    :)" data-shortname=":)" /></blockquote>

Verification: Hathara warak wissa keeyada? (Hathara wadi karanna 20)

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