NEC PD Comms Tool Guide de l'utilisateur Page 54

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Example: Daisy-chained RS232 with multiple COM ports
Supported display connection congurations
RS-232C
IN
RS-232C
OUT
RS-232C IN and OUT
RS-232C
IN
RS-232C
OUT
LAN
RS-232C IN, OUT, and LAN
In this example, the host PC has two RS232 COM ports, and there are two separate daisy-chains. Each display on a
daisy-chain must have a unique MONITOR ID.
RS232 IN
RS232 OUT
RS232 IN
RS232 OUT
RS232 IN
RS232 IN
ID 1
RS232
Display 1
ID 2
RS232
Display 2
ID 1
RS232
Display 3
ID 2
RS232
Display 4
PC
COM1
COM2
Notice that displays connected on COM1 can have the same IDs as those on COM2 because they are on separate
daisy-chains.
54 | NEC PD COMMS TOOL - USER’S GUIDE
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