InLine B-12222 Null Modem Serial Cable DB-9 Female to Female Beige 2 m

The InLine B-12222 null modem serial cable is engineered for dependable serial data transmission between computers and various serial peripherals. Measuring 2 meters in length with a 5.4 mm cable diameter, this beige cable features DB-9 female connectors on both ends, complete with knurl-thumb screws for secure attachment. It is supplied as an economic bulk pack containing 45 pieces, making it an efficient choice for professional installations, business environments, and technical workshops where multiple connections are required.

Advantages

This null modem cable ensures stable and secure communication between legacy hardware and industrial systems due to its precise pin assignment and encapsulated connectors. The bulk packaging minimizes excess waste by grouping the items together in protective packaging, reducing environmental impact while offering a cost-effective solution for large-scale setups. The integrated knurl-thumb screws allow for quick, tool-free installation and firm connector retention during daily operation.

Suitable for

• Connecting legacy computers and serial peripherals
• Industrial equipment networking and automation setups
• Communication between scientific or measurement instruments and PCs
• Batch installations in corporate or educational environments

This null modem cable is not designed for standard modern consumer peripherals that rely on USB, HDMI, or network interfaces, as it is strictly built for 9-pin serial communication. It is also unsuitable for direct monitor connections or standard peripheral connections on modern motherboards lacking a serial port.

Key specifications

• Cable length: 2 m
• Connector type: DB-9 female to DB-9 female
• Cable diameter: 5.4 mm
• Wire gauge: AWG 28
• Color: Beige
• Quantity: 45 pieces per bulk pack

To use the cable, ensure that both connected devices are powered off before making the physical connection. Align the 9-pin female connector with the serial port on your computer or peripheral, push it in gently, and secure the connection by tightening the knurl-thumb screws manually. Once secured, power on the devices and configure the necessary serial communication parameters in your operating system or control software.

What to consider before purchase

• Verify that both of your target devices are equipped with standard 9-pin serial ports
• Confirm whether your application specifically requires a null modem crossover pin configuration rather than a straight-through cable
• Assess your volume requirements to ensure the 45-piece bulk pack aligns with your installation needs

For optimal performance and longevity, route the cable away from heavy power lines to minimize electromagnetic interference, and avoid sharp bends or excessive pulling on the connectors during installation.