DTECH DB9 to DB9 RS232 Null Modem Serial Cable Female to Female – Cross TX/RX Data Communication Cable for PC, PLC, Router & Industrial Devices (5 ft, Black)
• RS232 Null Modem Cable (Crossover) – DB9 female-to-female serial cable with TX/RX lines crossed for direct RS-232 device-to-device 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) and Pin 3 (TXD) crossed with Pin 5 (GND); supports simple 3-wire null modem applications
• Secure Female Connectors with Screws – DB9 female connectors on both ends with thumbscrews ensure a firm and reliable connection
• Shielded & Durable Construction – 30 AWG internal wiring with aluminium foil shielding helps reduce interference for stable data transmission
• 5 ft (1.5 m) Length – Compact cable length suitable for desks, racks, testing, configuration and debugging environments
The DTECH DB9 to DB9 RS232 Null Modem Serial Cable (Female to Female) is designed for direct serial communication between two RS-232 devices that require a crossover (null modem) connection. Featuring female DB9 connectors on both ends, this cable crosses the transmit (TX) and receive (RX) lines to enable reliable data exchange without the need for modems or additional hardware.
This cable is ideal for serial console access, configuration, diagnostics, testing and debugging, and is widely used with PCs, laptops, PLCs, routers, switches, GPS units, CNC machines, industrial controllers and networking equipment that rely on RS-232 communication.
Constructed with shielded wiring and gold-plated pins, the cable offers improved signal integrity and corrosion resistance. The integrated thumbscrews provide a secure, vibration-resistant connection, making it suitable for both professional and industrial environments.
Technical Specifications
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Connector Type: DB9 Female to DB9 Female
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Cable Type: RS232 Serial Null Modem (Crossover)
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Pinout: TX/RX crossed, GND connected
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Wire Gauge: 30 AWG
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Shielding: Aluminium foil
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Length: 5 ft (1.5 m)
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Colour: Black
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