Guardian Device GIIAI-SR620
              The product description
            
            
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                Brief specifications:
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                Function and application scenario description:Guardian Device GIIAI-SR620 Module is used AI-link M620(IC: MT3620) as main MCU.RJ45 link to Ethernet. The ENC28J60  as a communication channel between M620 and the ENC28J60. The MAX3160E are programmable RS-232/RS-485 multi-protocol transceivers. A small SPDT slide switch to control MAX3160E change between the RS232 and RS485 connection. Between the M620 and MAX3160E transmits data as stand UART TTL.  
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                Specifications:
                  - AI-Link WF-M620-RSD2 module 
- Northbound link:
- ① Dual-band Wi-Fi, 2.4GHz and 5GHz
- ② Ethernet port: RJ45 female,10Mbps
- Southbound link:
- ① Bluetooth BLE 5.2
- ② RS232/RS485 
- ③ UART/I2C 
-  Modbus protocol support 
-  MCU programming and debug port
-  Power source: Female Micro-USB 5VDC/2A
- Operating temperature: -10C to +80C
- Operating humidity: 5% to 90% non-condensing
- 3 LED indicators: 1 blue power LED, 2 programmable red/green LEDs for Net and Application status