The LT series I/O Modules ar Long range LoRa I/O Controller. It contains totally different I/O Interfaces such as: analog current Input, analog voltage input, relay output, digital input and digital output etc. The LT I/O Modules are designed to simplify the installation of I/O observation. The LT I/O Controllers permits user to send information and reach very long ranges.It provides ultra-long range spread spectrum communication and high interference immunity while minimising current consumption.It targets skilled wireless sensing element network applications like irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on. The LT I/O Controllers is attending to offer a straightforward and low value installation by using LoRa wireless technology.

The use environment includes:
1) If user’s area has LoRaWAN service coverage, they can just install the I/O controller and configure it connect the LoRaWAN provider via wireless.
2) User can set up a LoRaWAN gateway locally and configure the controller to connect to the gateway via wireless.

Specifications

Hardware System:
• STM32L072CZT6 MCU
• SX1276/78 Wireless Chip

Power Consumption:
• Idle: 4mA@12v
• 20dB Transmit: 34mA@12v

Interface for Model: LT22222-L:
• 2 x Digital dual direction Input (Detect High/Low signal, Max: 50v, or 220v with
• optional external resistor)
• 2 x Digital Output (NPN output. Max pull up voltage 36V,450mA)
• 2 x Relay Output (5A@250VAC / 30VDC)
• 2 x 0~20mA Analog Input (res:0.01mA)
• 2 x 0~30V Analog Input (res:0.01v)
• Power Input 7~ 24V DC.

LoRa Spec:
• Frequency Band: IN865
• 168 dB maximum link budget.
• +20 dBm – 100 mW constant RF output vs.
• +14 dBm high efficiency PA.
• Programmable bit rate up to 300 kbps.
• High sensitivity: down to -148 dBm.
• Bullet-proof front end: IIP3 = -12.5 dBm.
• Excellent blocking immunity.
• Low RX current of 10.3 mA, 200 nA register retention.
• Fully integrated synthesizer with a resolution of 61 Hz.
• FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
• Built-in bit synchronizer for clock recovery.
• Preamble detection.
• 127 dB Dynamic Range RSSI.
• Automatic RF Sense and CAD with ultra-fast AFC.
• Packet engine up to 256 bytes with CRC.

Features
• LoRaWAN Class A & Class C protocol
• Optional Customized LoRa Protocol
• Frequency Bands: IN865
• AT Commands to change parameters
• Remote configure parameters via LoRa Downlink
• Firmware upgradable via program port
• Counting

Applications
• Smart Buildings & Home Automation
• Logistics and Supply Chain Management
• Smart Metering
• Smart Agriculture
• Smart Cities
• Smart Factory