RS-232C isolated x 2

Package Contents

RS–232C module bracket
M3 screw x 3
M.2 screw x 1
RS-232C M.2 card
Insulation sheet

Specifications

COM4
COM3

Product number	HMIYP6M2R23P2
Asynchronous transmission	RS-232C (isolated) x 2
Data length	7 or 8 bits
Stop bit	1 or 2 bits
Parity	None, odd or even
Flow control	Hardware flow control: RTS/CTS Software flow control: Xon/Xoff
Data transmission speed	2,400...115,200 bps
Connector	D-Sub 9 pin (plug)
M.2 Key ID	Key B

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.

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.

NOTE: Use within the rated current.

Pin Assignment

D-Sub 9 pin plug connector

Module side:

Pin No.	RS-232C
Pin No.	Signal name	Direction	Description
1	CD	Input	Carrier detect
2	RD (RXD)	Input	Receive data
3	SD (TXD)	Output	Send data
4	ER (DTR)	Output	Data terminal ready
5	SG	-	Signal ground (isolated)
6	DR (DSR)	Input	Data set ready
7	RS (RTS)	Output	Request to send
8	CS (CTS)	Input	Send possible
9	CI (RI)	Input	Called status display
Shell	FG	-	Frame ground

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

Installing RS-232C Module

Disconnect the power supply from the Box Module.
Touch the housing or ground connection (not the power supply) to discharge any electrostatic charge from your body.
Remove 3 screws on the front side of the Box Module.
Remove the optional interface cover.
Put the insulation sheet on the board.
Insert the M.2 screw on the slot in RS-232C M.2 card.
Insert the RS-232C M.2 card in the slot on the product.
Push the RS-232C 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).
Connect the port cable of the RS-232C module bracket to the socket on the RS-232C M.2 card.
Fix the RS-232C module bracket on the product and tighten with M3 screws.

NOTE: The necessary torque is 0.3 N•m (2.7 lb-in).
Place the optional interface cover on the Box Module.
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).