1 Pair Type A DB9 Male & Female RS232 Breakout Module, 9Pin D-SUB Solderless Terminal Serial Signal Adapter with Protective Housing & Lock Nuts

This Type A combo kit includes one DB9 male breakout connector and one DB9 female breakout connector, which convert standard 9-pin D-SUB RS232 serial signals to separate screw terminals for signal extraction, circuit modification and equipment fault inspection.

Adopting solderless wiring structure, users can install, adjust or replace wires simply with a screwdriver, saving much wiring time. The matched protective housing fully wraps exposed metal terminals to prevent short-circuit failures caused by dust or collision in industrial and lab environments.

Equipped with lock nuts, the breakout modules can be tightly fixed on control boxes, rack panels and test benches, staying stable under mechanical vibration. Each terminal is labeled with corresponding DB9 pin number to improve wiring and troubleshooting efficiency.

It supports standard RS232 serial communication and is widely compatible with industrial PLC controllers, frequency converters, barcode scanners, access control systems and serial test instruments. A practical wiring auxiliary accessory for automation engineers and maintenance staff.