1.8.5 Collisions
nWhen a collision is detected by the transmitting station it aborts its transmission and transmits a JAM signal. This signal is 32-48 bits long. 
nThe NIC then computes a random wait period according to the following algorithm (binary exponential backoff):
nAfter n collisions, choose K at random from {0,1,2,3,...,2m-1}, where m = min{n,10}. The node waits K x 512 bit times before scheduling a transmission.