![Parker 650S Series Product Manual Download Page 129](http://html.mh-extra.com/html/parker/650s-series/650s-series_product-manual_755635129.webp)
11-2
Serial Communications
650S AC Drive
Connection to the P3 Port
IMPORTANT:
The drive MUST be earthed. Failure to do so could damage your communications ports.
The port is an un-isolated RS232, 19200 Baud, supporting the standard EI bisynch ASCII communications protocol. Contact
Parker SSD Drives for further information.
The P3 port is located under the terminal cover and is used only by the remote-mounted RS232 Keypad.
P3 Port
A standard P3 lead is used to connect to the drive.
1 2 3 4
P3 Port
Pin
Lead
Signal
1 Black
0V
2 Red
5V
3 Green
TX
4 Yellow
RX
Note:
There is 5V present on pin 2 of the P3 port - do not connect this to your PC.