DB9 Male Screw Terminal to RS232 RS485 Conversion Board

This DB9 male connector breakout board with screw terminals provides a convenient interface for RS232 and RS485 serial communication applications, eliminating the need for soldering or custom cable assemblies. The board converts the standard DB9 connector pinout to easily accessible screw terminals, allowing quick prototyping and field installation of serial communication systems. Ideal for industrial automation, PLC connections, serial device testing, and embedded system development.

Each of the nine DB9 pins is clearly labeled and brought out to individual screw terminal blocks, enabling easy wire connection and reconfiguration without specialized tools. The robust construction ensures reliable signal integrity for data transmission applications. Perfect for connecting microcontrollers, serial devices, modems, industrial equipment, and testing instruments to DB9 serial ports. Compatible with both RS232 and RS485 communication standards when used with appropriate transceivers. The compact PCB design includes mounting holes for secure panel or DIN rail installation in control cabinets and equipment enclosures.

Specifications:

• Product Type: DB9 Connector Breakout Adapter Board
• Connector Type: DB9 Male (9-pin D-sub)
• Connector Gender: Male (9-pin)
• Terminal Type: Screw Terminal Blocks
• Number of Terminals: 9 (one per DB9 pin)
• Wire Gauge Capacity: 16-26 AWG (typical)
• Terminal Pitch: 5.08mm or 3.81mm
• Pin Labels: Clearly marked (1-9 or functional labels)
• Compatible Standards: RS232, RS485, RS422 (with appropriate transceivers)
• Signal Type: TTL/Serial communication signals
• Voltage Rating: Up to 250V (terminal blocks)
• Current Rating: 10A per terminal (typical)
• Insulation Resistance: >100MΩ
• PCB Material: FR4
• Mounting Holes: Yes (for panel/DIN rail mounting)
• Color: Green PCB (typical) with blue/black terminals
• Applications: RS232/RS485 communication, PLC connections, serial device testing, industrial automation