NEC MA Series 43" 4K Commercial Display with Media Player and Raspberry Pi Compute Module 4 SoC - Manual (Page 60)

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• Video daisy chaining.
We strongly recommend using the same monitor model for all monitors in the connected daisy-chain.
MONITORS POSITION is different from ID. Please refer to the figure 1.
H MONITORS: 3
V MONITORS: 3
POSITION: 4, 5, 6
ID:1
1
ID:6
4
ID:7
7
ID:2
2
ID:5
5
ID:8
8
ID:3
3
ID:4
6
ID:9
9
Figure 1