COMPUTER SCIENCE AND ENGINEERING
DIGITAL LOGIC
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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100nsec
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100msec
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100psec
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None of the above
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Detailed explanation-1: -Propagation delay, or delay, is a measure of the time required for a signal to propagate from one end of the circuit to the other. Network propagation delay is measured in nanoseconds (nS). Typical propagation delay for category 5e UTP is a bit less than 5 nS per meter (worst case allowed is 5.7 nS/m).
Detailed explanation-2: -(tpd)FF ≥ 10 nsec ∴ The minimum value of the propagation delay will be 10 nsec.
Detailed explanation-3: -The propagation delay of a physical link can be calculated by dividing the distance (the length of the medium) in meter by its propagation speed in m/s.
Detailed explanation-4: -The range of the cable delay is ±50, 000, 000 nanoseconds. The default value is 0 nanoseconds and the resolution is 1 nanosecond. The following formula is used to calculate the cable delay: D = ( L * C ) / V.