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low power consumption
serial communication gateway
LoRa modulation technology
low power consumption
serial communication gateway
LoRa modulation technology
Ebyte 485 to LoRa wireless transmission remote configuration serial communication gateway solenoid valve Modbus polling

[Carrier frequency]：433.125MHz

[Interface type]：RS485/TTL

[Transmission power]：30dBm

[Communication distance]：10km

[Size]：84*82*25mm

[Weight]：133±5g

[Introduction]：E90-DTU (400SL30L) is a wireless data transmission radio using military-grade LoRa modulation technology. It has a variety of transmission methods and works in the (410.125~493.125MHz) frequency band (default 433.125MHz). The radio provides RS485 and TTL two kinds of serial communication Port, support 8~28V DC power supply or 4.2V lithium battery power input, support reverse constant current charging.

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Item 
TagFunction Description
1Battery+Positive pole of battery

DC 3.0 ~ 5.0V, pay attention to the positive and negative poles of the battery, do not reverse, support the battery charging

2Battery -Negative terminal of battery power supply interface
3DOUT transistor output

The output wiring mode is NPN, the load voltage is less than 30V, and the maximum allowable current is 100mA

4GNDInput and output common terminal
5DINDIN dry contact input

Switch input detection

6TTL-RXDTTL-3.3V signal input

When using TTL, it is necessary to connect the signal common terminal, and it cannot be used with the RS485 interface at the same time.

7TTL-TXDTTL-TXD TTL-3.3V signal output
8GNDTTL-3.3V signal common terminal
9485-B B of RS-485 signal

Cannot be used with TTL interface at the same time

10485-A A of RS-485 signal
11GNDNegative power output

The total current of the load connected through VOUT should be <1A

12VOUTPositive power output
13PWRPower Indicator

Host: turn on the power and keep on;
Slave: On when the low-power mode wakesup, off when entering low-power mode, andalways on when not in low-power mode;

14TXD send indicator

Blinks when sending data

15RXDReceive indicator

Blinks when receiving data

16ANTAntenna interface

SMA-K

17M1Master-slave configuration dial

Dial down for the host

18M0configuration mode

Dial down for configuration mode

19V-Negative pole of DC 8~28 V

DC 8~28 V, 2*5.08mm phoenix terminal input;Do not supply power at the same time as the socket;

20V+Positive pole of DC
8~28 V
21DC-INDC power input

DC 8~28 V;

In-line round hole, outer diameter 5.5mm,
inner diameter 2.0mm; Do not supply power with the terminals at the same time