File talk:SDH STM1 Frame.JPG

This picture is bad. STM-1 Has no 8 lines.

STM-1 has 9*(9+261) bytes. That mean 3+1+5=9 lines.

http://upload.wikimedia.org/wikipedia/commons/0/09/STM-1.png http://www.pulsewan.com/data101/images/i4k.jpg