Daisy-Chained Rs232 With One Com Port - NEC KT-X46UN User Manual

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Daisy-chained RS232 with one COM port

In this example, the host PC has one RS232 COM port, and all displays are daisy-chained together. Each display
must have a unique MONITOR ID since they are all on the same daisy-chain. The RS232 OUT on the first display
is connected to the RS232 IN on the next, etc.
PC
COM1
Note: 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 configured. Notice that all displays
are configured to use the same COM port, even though only the first display is actually connected to the host PC.
Display 1
RS232 IN
ID 1
RS232 OUT
RS232
Display 3
RS232 IN
ID 3
RS232
Display 2
RS232 IN
ID 2
RS232 OUT
RS232
Display 4
RS232 IN
ID 4
RS232 OUT
RS232