There are 63 e1's in sdh STM-1 = 63 x E1; STM-4 = 63 x 4 E1; STM-16 = 63 x 16 E1; STM-64 = 63 x 64 E1.
In sdh radio 63 E1's are there
There are 32 timeslots in E1. named frm 0 to 31 in which the first timeslot is used for framing while 16th timeslot is used to carry signalling data
TWO (2)
4.76 miles (7.67 kilometres)