Overview
The Serial Circuit Board 3400 H&L-1 is a printed circuit board engineered for serial communication and data transmission in industrial and commercial applications. This circuit board provides reliable connectivity and signal processing for equipment requiring serial interface functionality. Supplied in new, open box condition for cost-effective system builds and replacement applications.
Key Features
- Dedicated serial communication interface
- Designed for industrial and business equipment applications
- Stable signal transmission and data handling
- New, open box condition — fully functional and ready to install
- Drop-in replacement component for compatible systems
Technical Specifications
- Product Type: Printed Circuit Board (PCB)
- Function: Serial Communication Module
- Model: H&L-1
- Condition: New – Open Box
- Interface: Serial Communication
Typical Applications
The Serial Circuit Board 3400 H&L-1 is suitable for:
- Industrial equipment requiring serial data transmission
- Business communications systems
- Legacy and modern control system upgrades
- Equipment repair and component replacement
- System integration and custom automation projects
Compatibility & Replacements
Compatible With
- Equipment requiring serial communication interfaces
- Industrial control systems
- Business and communications platforms
- Verify compatibility with your system integrator before ordering
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. This board may serve as a replacement component for equipment using the H&L-1 serial communication interface.
Works With
- Serial communication protocols and standards
- Legacy and contemporary control systems
- Custom automation and integration applications
- Verify specific system compatibility before installation


















