Allied-telesis AT-TS24TR Manuel d'utilisateur télécharger pdf (Page 80)

TurboStack Hubs with Management

Propagation

Propagation delay is the time it takes a signal to travel from the input of a

system component to the output; it is usually measured in nanoseconds.

IEEE 802.3 has specific propagation delay maximums for the Ethernet

components. Cable length plays a major role; i.e., a 50 meters (164 ft.) AUI

cable has a maximum propagation delay of 257 ns. The propagation delay

of cable depends on the length and velocity factor of the cable type.

Round-trip propagation delay throughout the entire cable system, from

farthest ends, may not exceed 51.7 µs, ± 4 µs.

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Allied-telesis AT-TS24TR Manuel d'utilisateur Page 80