RS-422 Cable Pin-Out

PIN

ControllingDevice

ControlledDevice

 

 

 

1

Frame Ground

Frame Ground

 

 

 

2

ReceiveA

TransmitA

 

 

 

3

Transmit B

Receive B

 

 

 

4

Transmit Common

Receive Common

 

 

 

5

Spare

Spare

 

 

 

6

Receive Common

Transmit Common

 

 

 

7

Receive B

Transmit B

 

 

 

8

TransmitA

ReceiveA

 

 

 

9

Frame Ground

Frame Ground

 

 

 

NV3128 RS-422A Machine-Control Routing Switch

2-15

Page 39
Image 39
Envision Peripherals NV3128 manual Pin