InLine Null Modem Cable DB9 Female to Female Molded 5m Beige

The InLine Null Modem Cable DB9 Female to Female Molded 5m Beige is designed for reliable serial data communication between computers and peripheral devices. This 5-meter serial cable features DB9 female connectors on both ends and a specialized null modem pin configuration, allowing two devices to connect directly without requiring extra adapters or converters. Built with a durable molded design, it offers high mechanical stability and long-term protection against daily wear and tear. The neutral beige color blends easily into existing office or industrial environments, while the integrated shielding supports stable signal transmission by minimizing external electromagnetic interference.

Advantages

This null modem cable ensures direct data transmission via standard COM ports without the need for active components, simplifying physical setups. The molded connector design provides exceptional mechanical stability and shields internal wiring from external stress. Thanks to its special pin configuration, the cable supports targeted applications within specific system environments. Furthermore, the built-in shielding effectively reduces external signal interference to maintain consistent communication quality across various legacy and industrial setups.

Suitable for

• Connecting two computers or serial devices directly via DB9 ports
• Legacy computer setups and vintage hardware communication
• Industrial automation equipment and machinery interfaces
• Networking configurations requiring RS232, RS422, or RS485 connections

This cable may not be suitable if your hardware requires a straight-through serial cable instead of a null modem crossover pin configuration. It is also unsuitable for modern consumer devices lacking traditional 9-pin serial COM ports, unless appropriate USB-to-serial adapters are used.

Key specifications

• Cable length: 5 meters
• Connector 1: DB9 female
• Connector 2: DB9 female
• Construction: Molded and potted design
• Pin assignment: Null modem configuration (1-7+8, 2-3, 3-2, 4-6, 5-5, 6-4, 7+8-1, shield-to-shield)
• Interface compatibility: RS232, RS422, RS485
• Color: Beige

To use the InLine null modem cable, ensure that both connected devices are powered off before making physical connections to prevent electrical damage. Align the DB9 female connector with the serial port on the first device and tighten the securing screws gently. Repeat the process for the second device at the other end of the cable. Once securely attached, power on the hardware and configure the communication software with the correct baud rate and port settings required by your specific application.

What to consider before purchase

• Verify that your devices require a null modem crossover cable rather than a standard straight-through cable
• Check that both of your devices feature compatible 9-pin Sub-D serial ports
• Confirm that the 5-meter length is sufficient to span the distance between your connected hardware

Usage recommendations: Always verify the pin configuration and interface compatibility of your target hardware prior to installation. Route the cable away from heavy power lines and sources of severe electrical interference to maintain optimal signal integrity. Avoid sharp bends or excessive tension on the molded connectors to ensure a long operational lifespan.