# Connector assembling

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The Connector on the Controller is a D-Sub 25 Pin female.

Pin | Signal | Description
1 | Chassis GND | Connected to case. Use this to connect cable shield.
2 | TXD | Transmitted data to RS232
3 | RXD | Received data from RS232
7 | GND Digital output | GND (2) Digital output
8 | Open | Digital output 1
9 | Close | Digital output 2
11 | Y | RS485 T+
12 | A | RS485 R+
13 | B | RS485 R-
15 | Close | Digital Input 2
17 | Open | Digital Input 1
20 | GND Analog output | GND (1) Analog output
21 | Position | Analog Output 1
22 | Pressure | Analog Output 1
23 | GND Digital input | GND (3)
24 | Z | RS485 T-
25 | Common Digital input | 3.3V (3)