July 2013 © British Telecommunications plc 2013
Page 16
The S button toggles the polarity of pin 1, the M button increments to pin 2, where the S button
can be used again to toggle the state. Each press of M will increment the pin, up to the last pin
8 and then return to the main menu.
A similar process is used on the menu items that allow IP addresses to be input. Set button (S)
enters the sub menu. Set button (S) then increments the first digit with each press. Mode
button (M) increments to the next digit, where button S can again be used to set this value.
The M button will increment through all digits 1-12 in the IP address.
Some special characters are used on the displays. These are detailed in fig. 14.
At any time the configuration mode can be exited, without saving changes, by holding down M
for 5 seconds.