RFID Reader Head 9-30VDC Read Write 0-40mm Head with RS-232 M18x1 CE
Product Description
1. Advantages:
 1>. High protection level and strong corrosion resistance, can be used in harsh industrial environments
 2>. High reading and writing speed, speeding up factory production rhythm and improving production efficiency
 3>. Supports RS232, RS485, Modbus RTU communication, and can be quickly integrated into industrial networks such as TCP, Modbus TCP, PROFINET, EtherCat and Ethernet/IP with our Gateway Module.
 4>. High stability and reliability, 7*24h operation


  
![]()  |  			Characteristics | |
| Design |  			1. LED status display | |
|  			 
 2. Power supply and communication interface 
  |  		||
| Area of application |  			 
 Identification tasks on small assembly lines in harsh industrial environments. Mainly used in 3C, new energy and other industries 
  |  		|
2. Electrical Interface
KRH-M18G with RS-232 interface, using a 4Pin-M12-ACODED-Male connector, the pin assignment is shown below.
![]()  |  			Pin | Assignment | Description | 
| 1 | +24V | Power supply positive | |
| 2 | TX | RS-232 TX | |
| 3 | 0V | Power supply negative | |
| 4 | RX | RS-232 RX | 
3. LED operating display
The operational statuses of the reader are displayed by the LEDs. The LED can adopt
 the colors blue and the statuses off, on, flashing.
| Name | Color | State | Description | 
| SYS | Blue | Off | The reader is power off. | 
| On | The reader is powered on and working properly. | ||
| 20Hz flashing | Tags was detected in the main identification area (RSSI signal is the strongest). | ||
| 8Hz flashing | Tags was detected in the secondary identification area (RSSI signal is medium). | ||
| 4Hz flashing | Tags was detected in the critical identification area (RSSI signal is weak). | ||
| 2Hz flashing | Valid instructions were received and executed successfully | 



