InLine Serial Extension Cable, 9-pin Sub-D Male to Female, 1:1 Assigned, Moulded, 3m, Beige

The InLine Serial Extension Cable is a dependable solution designed to extend existing serial interfaces for computers, servers, and peripheral hardware. Featuring a 3-metre length, this cable provides sufficient reach for office, home, and industrial setups. It is equipped with a 9-pin Sub-D male connector on one end and a 9-pin Sub-D female connector on the other, allowing seamless integration with standard DB9 ports. The neutral beige colour ensures it blends easily into professional environments.

Advantages

This serial extension cable utilizes a 1:1 direct pin assignment, ensuring that all nine pins are connected straight through without any cross-wiring. This guarantees unaltered signal transmission for reliable communication between connected devices. The moulded connector design provides enhanced mechanical stability and durability, protecting the connection points during regular handling and daily use. With its flexible yet robust construction, the cable supports standard serial communication protocols effectively.

Suitable for

• Extending RS232, RS422, and RS485 serial connections
• Connecting legacy peripherals to computers or servers
• Linking industrial automation equipment with control units
• Extending data cable runs for modems and data switches

When it may not be suitable

This cable is not designed for video transmission, audio signals, or high-speed modern networking applications such as Ethernet. It is strictly intended for serial data communication and cannot be used with devices that require cross-over null-modem pin configurations unless a separate adapter is used.

Key specifications

• Cable length: 3 m
• Connector 1: 9-pin Sub-D male
• Connector 2: 9-pin Sub-D female
• Pin assignment: 1:1 direct
• Design: Moulded connectors
• Supported interfaces: RS232, RS422, RS485
• Colour: Beige

How to use

To use the serial extension cable, ensure that both connected devices are powered off before making any physical connections to avoid potential electrical surges or port damage. Take the male 9-pin Sub-D connector and plug it into the existing female serial port of your computer, controller, or patch panel. Take the female 9-pin Sub-D connector on the opposite end of the cable and attach it to the male connector of your peripheral device cable. Secure the connection by tightening the integrated thumbscrews on both connectors to prevent accidental disconnection during operation. Once securely fastened, power on your devices and verify the communication link through your operating system or device software.

What to consider before purchase

• Verify that your devices use a standard 9-pin Sub-D serial interface
• Check whether your application requires a 1:1 straight-through cable or a cross-over null-modem cable
• Measure the required distance between your devices to ensure the 3-metre length is appropriate

Usage recommendations: Route the cable away from heavy power lines and electromagnetic interference sources to maintain stable signal integrity. Avoid sharp bends and excessive pulling tension on the connectors to ensure long-term reliability.