Hitachi CU-UHD4000-S7 Operating Instructions Manual page 4

Facility names and functions (Rear)
Note-1: To use both 12G output and Quad output simultaneously,
set Image Division to 2-Sample Interleave (2SI) and 3G-SDI Format to Level A (A) in
OUTPUT SELECT menu in the CCU.
Note-2: To use both 6G output and Dual/Quad output simultaneously,
set Image Division to 2-Sample Interleave (2SI) and 3G-SDI Format to DUAL in
OUTPUT SELECT menu in the CCU.
4K 12G OUTPUT / 4K 3G signal output combinations
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