InLine B-12225 Null Modem Serial Cable DB-9 Female to Female Beige 5 m

The InLine B-12225 null modem serial cable is a reliable solution designed for serial data transmission and device connectivity. Featuring a generous 5-meter length, this beige cable allows flexible placement of equipment in office, industrial, or laboratory settings. Equipped with DB-9 female connectors on both ends, it provides a secure connection for hardware that requires specific pinout configurations, ensuring stable communication between legacy systems.

Advantages

Constructed with attention to practical durability, this null modem cable incorporates encapsulated connectors with knurl-thumb screws for secure, tool-free fastening. The 5.4 mm cable diameter and 28 AWG wire size offer a balanced profile between flexibility and structural integrity. Supplied in an environmentally friendly bulk package of 20 pieces, it reduces excessive packaging waste while providing a cost-effective option for professional installations, business environments, and bulk deployments.

Suitable for

• Connecting computers and serial terminals
• Interfacing with legacy peripherals and industrial equipment
• Setup scenarios requiring cross-wired null modem pinout configurations
• Multi-device installations in office or technical environments

When it may not be suitable

This cable is not suitable for standard straight-through serial connections where a null modem cross-pinout is not required. It is also incompatible with devices that do not utilize traditional 9-pin D-sub serial interfaces.

Key specifications

• Cable length: 5 m
• Connector 1: DB-9 female
• Connector 2: DB-9 female
• Cable diameter: 5.4 mm
• Wire gauge: 28 AWG
• Color: Beige
• Quantity: 20 pieces per pack

How to use

Ensure that both connected devices are powered off before establishing the connection to prevent potential hardware interference or port damage. Align the DB-9 female connector with the serial port on the first device, insert it fully, and secure it by tightening the integrated knurl-thumb screws. Repeat the procedure for the second device at the opposite end of the 5-meter cable. Once securely attached, power on your equipment and configure the serial communication parameters within your operating system or device software.

What to consider before purchase

• Verify that your hardware requires a null modem cross-wired pinout rather than a straight-through cable
• Confirm that both devices are equipped with standard 9-pin serial ports
• Assess the required cable length to ensure the 5-meter reach is appropriate for your layout
• Evaluate whether a 20-piece bulk package meets your quantity requirements

For optimal performance and longevity, route the cable away from heavy power lines or sources of intense electromagnetic interference, and avoid sharp bends or excessive mechanical tension near the connectors.