
Example: Single IP LAN with daisy-chained RS232
Supported display connection congurations
IN
OUT
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 congured to use LAN as the EXTERNAL CONTROL on the OSD. The other displays are
congured 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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