NEC PD Comms Tool Guía de usuario Pagina 55

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Example: Single IP LAN with daisy-chained RS232
Supported display connection congurations
RS-232C
IN
RS-232C
OUT
LAN
RS-232C IN, OUT, and LAN
In this example, the host PC is connected to the rst display via LAN. Subsequent displays are connected together using
RS232 daisy-chaining. Each display on a daisy-chain must have a unique MONITOR ID.
Important: The rst display is congured to use LAN as the EXTERNAL CONTROL on the OSD. The other displays are
congured to use RS232 as the EXTERNAL CONTROL on the OSD. The RS232 OUT on the rst display is connected to the
RS232 IN on the next display.
Since communications to all of the displays is routed through the rst display, the software uses only the IP address of
the rst display. The rst display then translates commands received via LAN to the RS232 OUT to be received by the
other displays in the daisy-chain.
LAN
RS232 OUT
RS232 IN
RS232 OUT
RS232 IN
RS232 OUT
RS232 IN
ID 1
LAN
IP 192.168.0.1
Display 1
ID 2
RS232
Display 2
ID 3
RS232
Display 3
ID 4
RS232
Display 4
PC
IP 192.168.0.200
LAN
Notice that all of the displays are accessed via the LAN IP address of the rst display, even though displays 2, 3, and 4
are connected together via RS232.
55 | NEC PD COMMS TOOL - USER’S GUIDE
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