Nokia M1122 - Manual (Page 11)

M1122 Administrator Manual
E Copyright Nokia Networks Oy C33906001SE_00 1-2
services. As both services utilise the same pair of wires, a filter is
needed to separate them. This is called a POTS filter and it is a small
external device connected between your telephone and the telephone
wall socket.
Your Nokia M1122 interconnects with a Digital Subscriber Line
Access Multiplexer (DSLAM) installed and maintained by your
access provider in their central office. M1122 ADSL technology is
based on Discrete Multitone (DMT) modulation allowing a maximum
of 8 Mbit/s data transmission from the network and 800 kbit/s towards
the network. However, these figures illustrate the maximum
performance of the technology and are subjected to the physical line
conditions and the distance from you to the central office. M1122 is
capable of adapting to the physical line conditions and guarantees the
maximum transmission rate possible on the particular line. M1122
adapts its speed to the line conditions in steps of 32 kbit/s. In addition
to these physical limitations affecting your data throughput, your
Internet Service Provider (ISP) may limit your access according to
their service provisioning policy and based on your service contract.