INFICON Cygnus Thin Film Deposition Controller - Manual (Page 155)

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Cygnus Operating Manual
6.3.4.3 RS-232C Communications
RS-232C serial communications is included in the controller as standard
equipment. It is used to remotely control or monitor the Cygnus. An industry
standard 9-pin D-Sub connector is required for the host computer side connection.
Depending on the computer source, all connections may not be necessary. The
length of the cable is limited to fifty feet according to published standards. The
controller interface operates as DTE (Data Terminal Equipment). Pin assignments
are for the Cygnus connector.
Table 6-4 RS-232C Pin Connections
Signal Name Pin EIA Name
TX Transmit Data 2 BA
RX Receive Data 3 BB
RTS Request To Send 8 CA
CTS Clear To Send 7 CB
DSR Data Set ready 4 CC
SG Signal Ground 5 AB
(Not Used) 1
DTR Data Terminal Ready 6 CD
GND Shield Ground 9