Reference

https://www.soga.com.tw/attachment/file/201907/24/357668921178.pdf

SE5001

# 門控器使用訊號轉換器
Gate controller serial signal converter.

# 根據不同的腳位可以切換成RS232或是RS485
It can be switched between RS-232 and RS-485 depending on the pin configuration.

TroubleShooting

# 使用網路線(銅線)延伸 > 維修的時候注意TX、RX(2-Wire)
When extending the connection using a copper Ethernet cable,
pay attention to TX and RX (2-wire mode) during maintenance.