User`s manual

Chapter 4 Speed Configuration
4.1 Fixed/Auto Speed Function
SP3501AM/S is a 4-band VDSL solution which supports auto and manual
speed function and real plug & play. It can support 5M/15M/25M symmetrical
data service depend on installation environment.
If the cable length is unsure, then auto selection of the data speed at the
default setting is recommended. Power must be unplug before changing of
data speed, then power on and wait for VDSL to link again at the correct data
speed function.
For definitions of selectors, please refer to the following table:
At quick glance, it is easy to see that the DIP switch pin 1 is switch ON where
it is in auto-speed and that is also the default mode.
To set the data speed to 25Mbps simply switch ON pin 2 while the other pins
are in reset mode.
To change it to 15Mbps, switch ON the pin 3 while the other pins are in reset
mode and for 5Mbps switch on the pin 4 while other are in reset mode.
Remember that no two pins can be activated at the same time or it will result
in error and for data speed of 5Mbps.