1. General Introduction

WS-IO820TCP is a high performance and good price IOT network controller. It has 8 channel of digital isolated input and a 10M/100M Ethernet RJ45 port can be compatible for correspondence of TCP/IP communication. It was developed to be a long range data acquisition module to interface industry control area such as automatic fire alarm, intelligent agriculture, and smart switch detect, automatic light system, etc. The device is easy to be connected and can be remotely control by computer (include laptop, Raspberry Pi, Jetson nano,etc.) based on our free SDK. The controller working on DC9V to DC35V wide power supply, and the relay output can controlled of AC105V to AC250V (10A) equipment.

2. Product Features:

Using high quality electronic integrated module, Provide good electrical properties.

Support 8 channel of digital dry contact input

Working power: DC9V to DC35V.

Restore factory default

Upgrade firmware via TTL network

Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client

Across the gateway, switches, routers

Can work in LAN, also can work in the Internet (external network)

Support various LED to indicate work status

Guarantee reliable data transmission and long working life.

Support customization

3. Technical Parameter

Mode: WS-IO820TCP (with 8CH input and no relay output)

      WS-IO821TCP (with 8CH input and 1CH relay output)

Size: 110mm x 76mm x 20mm

Weight: about 50g (PCB board, without steel housing)

Power supply: DC9V to DC35V/1A, suggest DC12V

Static working current: <120mA (DC12V)

Dynamic current: when all relay closed less than 320mA (under DC12V power)

Output: 1 channel relay output (optional)

Relay contact capacity: AC250V/10A, AC110V/12A

Communication interface: 10M/100M RJ45 Ethernet and UART-TTL

Baud rate: 9600BPS (default, can set by software)

Address ID: 1 (default ID, can set by software, range: 1 to 254)

Indicator: LED indicator for power, communication and relay action

Reset button: short press 1s for reset relay, press 10s for return to factory settings

Ethernet module: USR-K2 (default) 

Network protocol: support Ethernet, ARP, IP, UDP, TCP, etc.

Ethernet user name: admin, Password: admin, Default IP: 192.168.0.100

Network mode: TCP client\server (max for 4 Clients), UDP Client\Server, HTTDP Client

TTL interface usage: design for communication testing and upgrade firmware.

Operating Temperature:-40-85 C (-40-185 F)

Storage Temperature:-40～85 °C（-40～185 °F）

Relative humidity: 5%-95% (no condensation)

Average fault-free time: 100000 hours

4. Application field of WS-IO821TCP relay controller

Parking guidance system, Parking management, door access control

Industrial automation, motor control, light power control system

Security and protection monitoring for area

Smart home, power control, environmental monitoring, intelligent agriculture

Automatic payment, POS system, rice selling system

Building automation system, self-service banking system, telecom machine room monitoring