DTECH DB9 to DB9 RS232 Null Modem Serial Cable Male to Male – Cross TX/RX Data Communication Cable for PC, Router, PLC & Industrial Devices (5 ft, Black)
• RS232 Null Modem Cable (Crossover) – DB9 male-to-male serial cable with TX/RX lines crossed for direct device-to-device RS-232 data communication
• Designed for Serial Data Transfer – Ideal for connecting PCs, laptops, routers, switches, PLCs, CNC machines and industrial equipment without hardware handshaking
• Standard DB9 Pin Configuration – Pin 2 (RXD), Pin 3 (TXD) crossed with Pin 5 (GND); supports simple null modem applications
• Secure & Reliable Connection – DB9 connectors with thumbscrews ensure a firm, vibration-resistant connection during operation
• Durable Shielded Construction – 30 AWG internal wiring with aluminium foil shielding reduces interference for stable data transmission
• 5 ft (1.5 m) Length – Compact length suitable for desks, control panels, testing, configuration and debugging environments
The DTECH DB9 to DB9 RS232 Null Modem Serial Cable is designed for direct serial communication between two RS-232 devices without the need for modems or additional hardware. Featuring a male-to-male DB9 connector configuration, this cable uses a null modem (crossover) wiring layout, crossing the transmit (TX) and receive (RX) lines to enable reliable data exchange.
This cable is ideal for applications such as device configuration, serial console access, file transfer, diagnostics, testing and debugging. It is commonly used with PCs, laptops, routers, switches, PLCs, industrial controllers, GPS units, CNC machines and networking equipment that require RS-232 communication.
Constructed with shielded wiring and gold-plated pins, the cable provides improved signal integrity and corrosion resistance. The integrated thumbscrews ensure a secure and stable connection, even in professional and industrial environments. With a compact 5 ft (1.5 metres) length, it is perfect for workbenches, racks and control cabinets.
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