
22 | NEC DISPLAY WALL CALIBRATOR - USER’S GUIDE
Example: Daisy-chained RS232 with one COM port
Supported display connection congurations
IN
OUT
RS-232C IN and OUT
IN
OUT
RS-232C IN, OUT, and LAN
In this example, the host PC has one RS232 COM port, and all displays are daisy-chained together via RS232. Each
display must have a unique MONITOR ID since they are all on the same daisy-chain. The RS232 OUT on the rst
display is connected to the RS232 IN on the next, etc.
RS232 IN
RS232 OUT
RS232 IN
RS232 OUT
RS232 IN
RS232 OUT
RS232 IN
ID 1
RS232
ID 2
RS232
ID 3
RS232
Display 3
ID 4
RS232
Display 4
PC
COM1
Note: For RS232 daisy-chains, the cable connections between displays does not need to follow the same ordering as the ID
assignments. In this example the daisy-chain is connected in order 1 - 2 - 4 - 3.
The following image shows how this layout looks in the Summary window when congured. Notice that all displays are
congured to use the same COM port, even though only the rst display is actually connected to the host PC.
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