DB9 9‑pin RS232 crossover data cable What it does and why you need it Connects RS232 serial devices using a 9‑pin DB9 crossover (null‑modem) wiring configuration to enable direct data transfer and console communication between devices. Offers flexible length and connector options so you can choose the right cable for installation, troubleshooting, or equipment interconnection without adapters. Key features and benefits Length options: available in 11 different lengths from 0.5 m to 30 m to match short bench work or longer rack-to-rack runs. Connector types: choice of male-to-male, female-to-female, or male-to-female DB9 connectors to fit a wide range of device ports and wiring needs. Reliable contacts: gold‑plated pins resist oxidation and corrosion for consistent contact and reduced maintenance. Durable construction: metal shell around the connector protects against mechanical wear and improves grounding. Signal performance: 28 AWG conductors and double-layer shielding reduce interference and support stable, high-speed transmission over the chosen length. Long service life: materials and shielding are selected to provide durable, long-term use in office, lab, or industrial environments. Practical applications Network and server administration: connect to router, switch, or server serial console ports for configuration and troubleshooting. Industrial control: link PLCs, HMIs, sensors, or other RS232-enabled controllers in factory or automation systems. Equipment setup and testing: use in labs, point-of-sale setups, or modem/terminal connections where reliable serial communication is required. Specifications (as supplied) Type: DB9 9‑pin RS232 crossover data cable Lengths: 0.5 m – 30 m (11 length options) Connector options: male-male, female-female, male-female Contacts: gold plated pins (oxidation/corrosion resistant) Shell: metal connector shell for protection Conductor/Shielding: 28 AWG with double-layer shielding Performance: stable high-speed transmission Choose the correct length and connector combination for your devices to ensure a reliable RS232 crossover connection with durable contacts and effective shielding.