Speed Comparison Pure Fibre Hybrid FibreCopper FTTH Enhanced

Speed Comparison Pure Fibre Hybrid Fibre/Copper FTTH Enhanced Copper FTTx, VDSL 2, ADSL 2 plus ADSL ISDN Voice band Modem

Normal Telephone Line PSTN 4 KHz

IP TV Server CORE Network (MPLS) ADSL MODEM Existing Copper 1. 5 to 9 Mbps 16 to 640 kbps Internet ADSL Connection ADSL MODEM

How does ADSL work • ADSL exploits the unused analogue bandwidth available in the wires PSTN Upstream 4 Downstream KHz • ADSL works by using a frequency splitter device to split a traditional voice telephone line into two frequencies

ADSL Range • In general, the maximum range for DSL without a repeater is 5. 5 km • As distance decreases toward the telephone company office, the data rate increases Data Rate Wire gauge Wire size Distance 1. 5 or 2 Mbps 24 AWG 0. 5 mm 5. 5 km 1. 5 or 2 Mbps 26 AWG 0. 4 mm 4. 6 km 6. 1 Mbps 24 AWG 1. 5 or 2 Mbps 26 AWG 0. 5 mm 0. 4 mm 3. 7 km 2. 7 • For larger distances, you may be able to have DSL if your phone company has extended the local loop with optical fiber cable

Telephone line Voice + ADSL Splitter Voice (+ ADSL leakage) ADSL (only) ADSL Filter ADSL modem Phone

ADSL - Internet only

ADSL - Internet+Peo TV

Only Copper to Home Max 4 Km Radius Separate Fiber to Node B O/F Max 4 Km Radius Separate Fiber to AGW and Copper to Home O/F PON OLT PON for AGW (MSAN), Node B and Customer Premises 9

Access network – Passive Optical Network (PON) Upto 1 Gb/s www. slt. lk 10 10

Access Technologies FTTN (Fibre To The Neighborhood) www. slt. lk 11 11

Access Technologies FTTH (Fibre To The Home) www. slt. lk 12 12

Wi. MAX - Worldwide Interoperability for Microwave Access . www. slt. lk 13 13

NGN