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E90-DTU(900SL30)E new generation LoRa wireless 915M module RS485 automatically polls the long-distance sending and receiving Modbus communication gateway.
[Introduction]：E90-DTU(900SL30)E is a wireless gateway (Ethernet interface data transmission radio) that supports 10M/100M rate and is developed by Chengdu Ebyte based on LoRa communication technology and Ethernet protocol. Supports 2-way Socket and provides six working modes: TCP Server, TCP Client, UDP Server, UDP Client, HTTP Client, and MQTT Client. It also supports six-way client connections in TCP server mode.
| Serial number | Identification name | Function description |
| 1 | DC_IN | Power interface, 8~28V DC female socket (inner pin diameter 2.0mm, hole diameter 5.5mm) |
| 2 | Ethernet | Ethernet interface, standard RJ45 interface |
| 3 | PWR | Power indicator light, red, lights up when the power is turned on |
| 4 | LINK | Link indicator light, green a) Off: The network cable is not connected or not connected to the server; b) Flashing: The network cable is connected normally but the link is not connected (2Hz square wave); c) Always on: The network link is connected successfully; |
| 5 | DATA | Serial port transceiver indicator light, yellow, flashes when receiving data from the server or radio frequency module data |
| 6 | ANT | SMA antenna interface (external screw, internal hole) |
| 7 | Reload | Restore to factory settings button |