DB9 Female to Female RS232 Cross Serial Cable 1.5 Metre for Direct Device Communication

This RS232 serial cable provides a dedicated connection solution for equipment requiring cross-wired DB9 communication. With female connectors on both ends and a 1.5 metre length, it enables direct device-to-device linking without adapters or gender changers. The cross-wired configuration means pinouts are arranged specifically for connecting two data communication equipment (DCE) devices that would normally require a null modem adapter. The milky white PVC cable jacket offers both flexibility and visibility in crowded installation environments.

Features and Construction

This cable is built for practical serial communication between devices with DB9 ports. Its construction focuses on reliable connectivity and compatibility with legacy RS232 standards that continue to be used in industrial, laboratory, and specialty computing applications.

Material and Build

The cable features a PVC outer jacket that provides basic protection against everyday wear while maintaining flexibility for routing around equipment. DB9 connectors are standard 9-pin D-subminiature female types with metal shells that offer electromagnetic interference shielding. Internal wiring follows RS232 specifications for serial communication with appropriate gauge conductors for data transmission over the 1.5 metre distance.

Size and Practical Fit

With a 1.5 metre length, this cable provides enough reach to connect devices positioned within reasonable proximity while avoiding excessive cable clutter. This length suits scenarios where equipment might be mounted in racks, placed on adjacent desks, or installed in control panels with limited space between units. The female connectors on both ends mean it connects directly to male DB9 ports without requiring additional adapters.

Uses and Placement

This cross-wired RS232 cable serves specific communication needs between compatible devices. Its configuration makes it suitable for both professional installations and legacy system maintenance where modern interfaces are unavailable or impractical.

Event or Professional Use

In professional environments, this cable enables direct communication between industrial control equipment, laboratory instruments, point-of-sale systems, or specialised computing hardware that retains DB9 serial ports. The cross-wiring allows two DCE devices to communicate directly, which is necessary when both devices expect to transmit on the same pin. This configuration is commonly required for connecting computers to modems, routers, or other communication equipment in test setups or legacy installations.

Everyday Home Use

For home users maintaining older computer systems, hobby electronics, or retro gaming setups, this cable provides connectivity for peripherals that still use serial interfaces. It can connect legacy printers, plotters, modems, or serial mice to compatible computers. The cross-wired configuration is particularly useful when connecting two computers directly for file transfer or when working with Arduino and other microcontroller projects that communicate via serial ports.

Benefits and Buying Value

This cable offers practical advantages for specific connectivity scenarios where modern alternatives would require multiple adapters or wouldn't function correctly. Its value lies in providing a single-component solution for a specialised connection need.

Reuse and Low Maintenance

As a physical cable without electronics or moving parts, it can be reused across multiple projects and installations. The PVC jacket resists minor abrasion from desk or rack mounting, and the DB9 connectors maintain compatibility with decades of serial equipment. Proper care involves avoiding excessive bending at the connector joints and keeping connections clean from dust and debris.

Why Choose This Product

This cable provides a complete cross-wired solution in a single package, eliminating the need for separate null modem adapters or gender changers. The specified 1.5 metre length offers practical spacing for most equipment arrangements while minimising signal degradation that can occur with longer serial cables. Its female-to-female configuration directly matches the most common requirement for connecting two devices with male DB9 ports.