AJMRTC DB9 Female Breakout Board, DB9 D-SUB 9Pin to Screw Terminal Adapter, Solder-free RS232 Serial Port Wiring Terminal Block for PLC, CNC, Industrial Control, Serial Signal Debugging and Circuit

AJMRTC DB9 female breakout adapter provides a simple solder-free wiring solution for standard DB9 RS232 serial interfaces. All 9 pins of the DB9 female connector are brought out one-to-one to screw terminals on the PCB, with printed pin marking for quick reference. The screw clamping mechanism firmly holds wire cores, reducing contact resistance and intermittent signal faults caused by loose wiring. Built with durable FR4 PCB and reliable nickel-plated copper contacts, it maintains stable serial signal transmission for long-term industrial use. It simplifies RS232 cable assembly, signal tapping and equipment repair without soldering tools. It is widely used for PLC control cabinets, CNC equipment, serial test benches, sensor communication and industrial automation debugging work.

Specifications:

1. Connector: DB9 D-SUB Female, 9 Pin
2. Output: Screw Terminal Block
3. Connection Type: Solder-free screw wiring
4. Marking: Pin numbers printed on PCB
5. Material: FR4 PCB + Nickel-plated copper contacts
6. Protocol: RS232 Serial Signal
7. Application: PLC, CNC, Industrial Control, Serial Communication, Signal Debugging
8. Feature: Easy wiring, convenient modification, inline signal testing