What type of power supply does the Tripp Lite N784-MDC-1STST use?

The Tripp Lite N784-MDC-1STST uses an external power supply with an input of 100-240V, 50/60 Hz, and 0.35A, and an output of 5V 2A.

What is the maximum distance this mode converter can extend a network connection?

The maximum distance this mode converter can extend a network connection is up to 10 kilometers (6.2 miles).

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Tripp Lite N784-MDC-1STST Fiber Optic 100 Mb ST to 100 Mb ST Mode Converter - 1310 nm Compatible - Up to 10 km (6.2 mi.) - Black - Metal Box