RS-422/485 isolated x 2

Package Contents

1. RS-422/485 module bracket

2. M3 screw x 3

3. M.2 screw x 1

4. RS-422/485 M.2 card

5. Insulation sheet

Specification

1. COM4

2. COM3

The serial interface is isolated. The SG (signal ground) and FG (frame ground) terminals are not connected inside this product. When the serial interface connector is D-Sub, connect the FG wire to the shell.

DANGER

ELECTRIC SHOCK AND FIRE When using the SG terminal to connect an external device to this product: Verify that a ground loop is not created when you set up the system. Connect the SG terminal to remote equipment when the external device is not isolated. Connect the SG terminal to a known reliable ground connection to reduce the risk of damaging the circuit. Failure to follow these instructions will result in death or serious injury.

CAUTION
LOSS OF COMMUNICATION Do not put excessive stress on the communication ports of all connections. Securely attach communication cables to the panel wall or cabinet. Use a D-Sub 9 pin connector that has jack screws. Failure to follow these instructions can result in injury or equipment damage.

Pin Assignment

RS-422: D-Sub 9 pin plug connector

Module side:

Recommended jack screw is #4-40 (UNC).

RS-485: D-Sub 9 pin plug connector

Module side:

Recommended jack screw is #4-40 (UNC).

Installing RS-422/485 Module

1. Disconnect the power supply from the Box Module.

2. Touch the housing or ground connection (not the power supply) to discharge any electrostatic charge from your body.

3. Remove 3 screws on the front side of the Box Module.

   

4. Remove the optional interface cover.

   

5. Put the insulation sheet on the board.

   

6. Insert the M.2 screw on the slot in the RS-422/485 M.2 card.

   

7. Insert the RS-422/485 M.2 card in the slot on the product.

   

8. Push the RS-422/485 M.2 card and tighten with M.2 screw.

   NOTE:

   • Using a Phillips screwdriver #1 is recommended.

   • The necessary torque is 0.2 N•m (1.77 lb-in).

   

9. Connect the port cable of the RS–422/485 module bracket to the socket on the RS-422/485 M.2 card.

   

10. Fix the RS–422/485 module bracket on the product and tighten with M3 screws.

    NOTE: The necessary torque is 0.3 N•m (2.7 lb-in).
    

11. Place the optional interface cover on the Box Module.

    

12. Secure the optional interface cover on the Box Module with the screws.

    NOTE: The necessary torque is 0.3 N•m (2.7 lb-in).
    

Port Setting

Termination resistor setting is necessary when using RS-422/485 isolated x 2. Set up by referring to the following table. Switching RS-485 and RS-422 is also configured with the dip switch.

Along with DIP switch settings, both ports must be set in the Windows^® Device Manager too.

1. Open the Windows^® Device Manager.

2. Open Ports.

3. Right-click the port to which RS-485 or RS-422 is assigned.

   

4. Select Properties and open the Port Settings tab.

5. Select the RS-485 check box .

   NOTE:

   • Select the RS-485 check box even for RS-422.

   • Do not change any settings other than RS-485.