ADSL SPEED RANGES

Distance from Exchange	Speed Range
Less than 1KM	1.5Mbps (150KBps) - 20Mbps
Less than 2KM	1.5Mbps (150KBps) - 14Mbps
Less than 3KM	1.5Mbps (150KBps) - 7Mbps
Less than 4KM	1.5Mbps (150KBps) - 4Mbps
Less than 5KM	1.5Mbps (150KBps) - 2Mbps

The data rates available to a particular ADSL customer are affected by many factors, and some by quite significant amounts. These include:

• The length of copper wire from the exchange.
• The number of, and type of, other services being used over copper pairs in the same cable by other customers.
• The configuration and line quality of the copper wire pair between the exchange and the customer’s premises.
• Electrical interference from outside sources (such as electric motors).
• The configuration of the copper wiring within the customer’s premises.
• The software configuration and application on the customer’s computer (in particular how it uses the uplink back to the exchange).
• The customer’s hardware or modem.
• The capacity of, load on, and access data rate of the destination host computer which the customer is accessing.