Which transmission impairment arises when fiber dispersion exceeds limits in DWDM systems?

💡 Explanation

Increased ISI occurs because *wavelength division multiplexing* transmits multiple signals, and excessive dispersion skews pulse arrival times and overlaps signals. Therefore, decoding is compromised rather than mitigated, particularly at higher data rates.

• Which risk increases when operating a three-phase circuit breaker nearing its maximum breaking capacity?
• Which risk acutely increases when grinding cemented tungsten carbide?
• Which risk increases when a pneumatic actuator in a high-speed packaging machine exceeds its rated cycle frequency?
• Which outcome occurs when heat exchanger fins in HVAC system become fouled with dust?
• Which risk increases when symbol timing recovery deviates due to jitter in synchronous digital hierarchy (SDH) data transmission?
• Which outcome occurs when circulating currents overheat three-phase transformer conductors?