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Home AMX Networked A/V Distribution (AVoIP) General Network A/V Distribution Inquiries Window to U-Port Correlation Written by Peter Stauber Updated at January 6th, 2026 Table of Contents Question: Answer: Question: What is the window relation to the U-port on a windowing processor?Answer:Window 1 = UPORT 3Window 2 = UPORT 2Window 3 = UPORT 1Window 4 = UPORT 0 Related Videos questions guide