Operation Manual
Application 
These specifications are applicable to NEC plasma monitors and 
communications control from external equipment. 
"Please also support the command of VP series and refer to the manual of the 
conventional model about specification." 
Connections 
Connections should be made as described below. 
External equipment 
e.
g
.
,
 Personal com
p
ute
r
plasma monitor 
1) Connector on the plasma monitor side: EXTERNAL CONTROL connector. 
Type of connector: D-Sub 9-pin male 
No. Pin Name 
1 No Connection 
2  RXD (Receive data) 
3  TXD (Transmit data) 
4  DTR (DTE side ready) 
5 GND 
6  DSR (DCE side ready) 
7  RTS (Ready to send) 
8  CTS (Clear to send) 
9 No Connection 
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