INFICON TM-400 Thin Film Deposition Monitor - Manual (Page 32)

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TM-350/400 Operating Manual
Figure 3-7 D9S DTE Rear-panel RS-232 male connector
Table 3-4 D9 Rear Panel RS-232/RS-485 Connector Pin Assignments
Pin
Number
Signal
RS-232 RS-485
1 Not used Rx- Input
2 Tx Output Rx+ Input
3 Rx Input Tx+ Output
4 Not used Tx- Output
5 GND GND
6 Not used CTS- Input
7 CTS Input CTS+ Input
8 RTS Output RTS+ Output
9 Not used RTS- Output