RDI411A

1. Introduction

1.1 Description

RDI4/811A is a DTU of RS485-LoRaW男日AN with highly flexible到地 configuration an去行d low power 林話consumption 行他independently deve友數loped by ManThink Technol關站ogy Co Ltd. It is embed吃光ded with a hig你計h-performance MC時訊U of NXP and a Radio 西微chip SX127x of Semtech. It ca這兵n get data from 照廠several slave dev土兒ices by RS485 煙美 and uploadi我熱ng data to platform女熱 through LoRaWAN network.Users can qui匠兵ckly and flexibly con動姐figure DTU's work愛讀ing mode as needed,and 答一quickly occupy the m土離arket.

1.2 Applications

RDI4/811A is見個 suitable for senso吃愛rs with MBUS interface地用, and uploading large data frequently,可站such as the collectio從他n of water and e票線lectricity mete子土rs.

1.3 Features

Supports NMS co商歌nfiguration and manageme對林nt
Support remote u影呢pgrade by FUOTA
Support heartbeat fu匠離nction

RS485 interface to 金低sensor

Global ISM b體長and support: EU433/CN47視外0/EU868/KR920/AS923
Supports mult風師iple power supply mod上場es

1.4 product 光雨appearance

2. Charactoristics

2.1 Interface

Name	Defined
RS-485A	RS-485A
RS-485B	RS-485B
NC	Reserved Port
NC	Reserved Port
GND	GND
VOUT	3.3V output
GND	GND
+ 5V_IN	5V input
Power	12V input
Type-c	The debugging interfa藍海ce downloads the TLS 金我file to implement DTU pa來費rameter modification, t森和esting, and oth訊空er instructions.
LoRa Antenna inter煙開face	Connect LoRa antenna
PWE	LED indicator for p快少ower,light on when it is中區 powered on
RUN	LED indicator 門書for system applicati校動on run status. It bli低雜nks in one s件用econd when t什時he system is running又還 normally.
RX	LED indicator for RS485喝愛,It blinks when RDI511A 草錢is receiving也樹 data from RS485.
TX	LED indicator for R那什S485,It blinks when 的山RDI511A is sending d不國ata to RS485老站.
BH	LED indicator for upli務謝nk or downlink,海得it will blink o購廠nce when RDI5拍妹11 sending data&n花關bsp; or receiving data藍嗎 by LoRaWAN.
4G	Retention

2.2. Electrical charactoristics

Operating voltage	DC 5V/12V
Operating tempe能高rature	-40℃ ~ 85℃
Working humidit見懂y	0%~95%RH
Protection lev東刀el	IP53
ESD(Human Body Model)	2000V

2.3. Radio charatoristics

Working freque事爸ncy	EU433/CN470/EU場農868/KR920/AS街電923
Stepping frequ輛腦ency	1kHz
Transmitting powe南地r	5 ~ 20dBm
Reception sensitivity	-139dBm @292bps
Air transmission ra裡場te	292bps~5.4kbps
Emission current typ書水ical value	90mA @22dBm
Harmonic supp我輛ression	≤1GHz:<-36dBm, >1G就鄉Hz:< -30d爸議Bm
CAD/received Current身業 (typical va時朋lue)	7mA
Sleep current typi頻機cal value	3μA
Antenna Impedance	50Ω

2.4. Dimensions

Size: 97mm * 90mm * 24mm

Network layer

Application layer