IO Coupler
  • IO CouplerIO Coupler
  • IO CouplerIO Coupler
  • IO CouplerIO Coupler
  • IO CouplerIO Coupler
  • IO CouplerIO Coupler
  • IO CouplerIO Coupler

IO Coupler

Ningbo San'an Electronic Technology Co., Ltd.established in 2020 is a professional manufacture engaged in the research, development, sale and service of electronic components, terminal blocks,din rail terminal blocks, IO moduels, IO Coupler,din rail enclosures. We are located in Ningbo with convenient transportation access with more than 200 workers team and 10000 meter square factory.Dedicated to strict quality control and thoughtful customer service, our experienced staff members are always available to discuss your requirements and ensure full customer satisfaction. In addition, we have obtainedRohs, CE , ISO14001, ISO9001, HI-Tech certificates. Selling well in all cities and provinces around China, our products are also exported to clients in such countries and regions as USA and Europe etc. We also welcome OEM and ODM orders.We are glad to work together with you and finally bring you the satisfied products.


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Product Description

An IO (Input/Output) coupler is a device used in industrial automation and control systems. It serves as an interface between a control system, like a Programmable Logic Controller (PLC), and the various input and output devices in a process. The main functions of an I/O coupler include,Signal Conversion,Isolation and Protection,Data Transmission,Module Expansion etc,I/O couplers are essential components in modern industrial automation systems, providing the necessary link between the computational elements of the system and the physical processes they control. They are designed to handle various types of inputs and outputs, including but not limited to electrical, pneumatic, and hydraulic signals.


● Signal Conversion, converts signals from various input devices into a format that the control system can process. For output signals, it does the reverse, ensuring compatibility between the control system and field devices.
● Electrical Isolation, I/O couplers often provide electrical isolation between the control system and the field devices. This isolation is crucial for protecting sensitive electronic components in the control system from voltage spikes, surges, and electrical noise that can occur in industrial environments.
● Data Transmission and Networking: They facilitate data transmission, often over industrial communication networks such as Ethernet, PROFIBUS, or MODBUS. This feature is especially important for distributed control systems or remote I/O configurations, enabling communication over long distances and complex industrial setups.
● Diagnostic and Status Indicators,many I/O couplers come with diagnostic LEDs or other indicators that provide immediate visual feedback about the status of the connections and signal integrity, aiding in troubleshooting and maintenance.

Product specification of IO Coupler

Product name IO Coupler
Housingmaterial Polycarbonate
Color Black(accept customization)
Protection class IP20
Application Analog or digital output/input
Signaltype(voltage) 24VDCNPN
Maximum crimp area of wire 0.2~1.5mm2
Maximum crimp area of wire (AWG) 28-18AWG
Stripping length 8-9mm
Connection type 2-line
Input filter (analog) 16-bit
Flammability rating according to UL 94 V-0
Operating temperature -25°C~+60°C
Certification ROSH CE
Weight 50g
Packing Nature packing
Brand OEM

Drawing of IO Coupler


According to Stardard Export Packing,Carton box, wooden box, wooden pallet etc


- International express such as UPS, TNT, DHL, etc
- International air: CA, AA, EA, etc
- Port Ningbo port or Shanghai port
- By sea etc

Hot Tags: IO Coupler, China, Manufacturers, Suppliers, Wholesale, Factory, Customized, Free Sample, Made in China, CE, Newest, Quality

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