DIY Electronics Kit 108 Serial Isolated Input/Output Module
The DIY Electronics Kit 108 is a serial isolated input/output module designed for various electronic projects. It provides isolated serial communication for safe and reliable data transfer between devices. This kit is ideal for hobbyists and professionals looking to implement solid control and monitoring systems.
- Model
- DIY Electronics 108
- Calibration
- Available on request
- Price
- $45
- Status
- In stock
- RFQ ref
- 108
This unit
The DIY Electronics Kit 108 is a serial-controlled input/output module for industrial control and sensing applications. It combines 8 Form C relay outputs with 4 optically isolated inputs in a compact plastic enclosure. The module accepts commands via standard serial port (D9 connector) from an external controller - such as a PC or PLC - and maintains relay states independently after disconnection. Relay contacts handle up to 15A at 120VAC or 10A at 240VAC for resistive loads, with 5A ratings for inductive circuits. The four opto-isolated inputs operate from 5VDC to 24VDC and provide 2500V peak galvanic isolation. All I/O connections use pluggable screw terminal blocks for straightforward field wiring. Serial communication supports cable runs up to 100ft, enabling remote operation in distributed control architectures. The unit requires a 9-12V DC power supply rated for 500mA minimum and measures 140(W) × 110(D) × 35(H)mm.
Technical Specifications
Relay Outputs: 8× Form C SPDT contacts
Relay Contact Ratings (Resistive): 15A @ 24VDC; 15A @ 120VAC; 10A @ 240VAC
Relay Contact Ratings (Inductive): 5A @ 24VDC; 5A @ 120VAC; 5A @ 240VAC
Maximum Voltage: 240V AC / 110V DC
Maximum Current: 15A per contact
Maximum Power: 1800VA / 250W
Minimum Load: 5VDC, 10mA
Relay Life (Mechanical): 10,000,000 operations
Relay Life (Electrical): 100,000 operations
Operating Time: 10msec maximum
Isolated Inputs: 4 channels, opto-isolated, polarized
Input Voltage Range: 5-24VDC
Isolation Voltage: 2500V peak / 1775V RMS (1 second)
Power Supply: 9-12V DC, 500mA minimum
Physical: 140(W) × 110(D) × 35(H)mm, plastic case
Key Features
Form C relay contacts for high-side or low-side switching
2500V galvanic isolation on input channels
Pluggable screw terminals for inputs and outputs
D9 serial interface with extended cable support (up to 100ft)
State retention independent of controller connection
Double-sided through-hole PCB construction
Typical Applications
Industrial equipment control and switching
Remote monitoring and load management
Sensor input acquisition with high voltage isolation
Contact closure and external voltage sensing
Distributed automation systems requiring serial interface
Compatibility & Integration The module integrates with any external controller capable of serial communication at standard baud rates. It operates as a passive I/O device - no firmware reprogramming is required. The D9 connector and screw terminal blocks ensure compatibility with standard industrial cabling and field devices.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | 9-12V DC (power supply) |
DIY Electronics 108 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the DIY Electronics 108. Calibration covers I/O channel accuracy per specification, analog output and input calibration to rated accuracy, and functional communication interface test (serial, Ethernet, fieldbus). All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common DIY Electronics 108 faults: blown I/O fuses, failed analog modules, power supply capacitor failure. Common faults include blown I/O protection fuses, failed analog I/O modules, power supply capacitor failure, and serial or Ethernet communication port damage.
DIY Electronics 108 price
This DIY Electronics 108 is listed at $45. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
DIY Electronics 108 calibration cost
NIST-traceable calibration for the DIY Electronics 108 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers I/O channel accuracy per specification, analog output and input calibration to rated accuracy, and functional communication interface test (serial, Ethernet, fieldbus). Turnaround is 1 to 3 business days after receipt. See full calibration details →
