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RS232 (9W 'D' plug)
A 9W 'D' plug provides RS232 communications to third party devices, this is typically a temperature sensing interface. It provides one transmit and receive signal as well as CTS and RTS lines for handshaking. DTR indicates to the other device that this device is powered.
![SPA3-2 connectors - E-STOP (9-pin 'D' socket)](/cmmsupport/knowledgebase/media/img/gen/2af6663761894ef4af87f378c8c3a21a.png)
Pin | Function |
---|---|
1 | Reserved |
2 | RX_IN |
3 | TX_OUT |
4 | DTR_OUT |
5 | 0 V |
6 | Reserved |
7 | RTS_OUT |
8 | CTS_IN |
9 | Reserved |
Shell | Screen |
NOTE: The RS232 interface is configured using the UCCassist software.