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External Control
plasma monitor
External equipment
e.g., Personal computer
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
Application
These specifications cover the communications control of
the plasma monitor by external equipment.
Connections
Connections are made as described below.
2) Connector on the external equipment side: Serial port
(RS-232C) connector
See the specifications of the equipment that is to be
connected for the type of connector and the pin
assignment.
3) Wiring
Use a crossed (reverse) cable.
Wire the cable so that each pair of data lines cross
between the two devices. These data line pairs are RXD
(Receive data) and TXD (Transmit data), DTR (DTE
side ready) and DSR (DCE side ready), and RTS (Ready
to send) and CTS (Clear to send).
Communication Parameters
(1) Communication system Asynchronous
(2) Interface RS-232C
(3) Baud rate 9600 bps
(4) Data length 8 bits
(5) Parity Odd
(6) Stop bit 1 bit
(7) Communication code Hex
1
5
9
6
PD4292D-2 00.10.4, 3:11 PM49