Details

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DB9 Female to RJ45 Female Modular Adaptor 🔌💻

Our DB9 Female to RJ45 Female Adaptor is a high-quality modular solution designed for creating custom serial connections over standard networking cables. This adaptor allows you to run RS-232, RS-422, or RS-485 serial signals through inexpensive Cat5e or Cat6 Ethernet cables, significantly extending the reach of your serial devices without the need for costly custom-molded cables.

Key Performance Features

• Flexible Pin Configuration: Features un-terminated flying leads that allow you to customize the pinout to match your specific hardware requirements.

• Standard Networking Interface: Equipped with an RJ45 female port to accept standard Ethernet patch cables for easy, long-distance signal routing.

• Tool-Less Assembly: The modular design allows for quick assembly; simply insert the color-coded pins into the desired slots on the DB9 connector.

• Secure Installation: Includes integrated knurled thumbscrews for a firm, hand-tightened connection to serial ports, preventing accidental data loss due to cable movement.

• Durable Modular Housing: Encased in a rugged, beige PVC shell that protects the internal wiring and provides reliable strain relief for the connected Ethernet cable.

Technical Specifications

• Connector A: DB9 (RS-232) Female.

• Connector B: RJ45 (8P8C) Female.

• Internal Wiring: 9 Color-coded flying leads with pre-crimped pins.

• Housing Color: Industrial Beige.

• Hardware: Dual steel thumbscrews.

Typical Applications

• Console Access: Connecting a laptop or terminal to the console ports of network switches, routers, and firewalls.

• Industrial Automation: Bridging the gap between a central control PC and remote PLC units or CNC machinery using existing building wiring.

• Digital Signage: Extending serial control signals to commercial displays and projectors located far from the source.

• POS Systems: Linking receipt printers, pole displays, and cash drawers to a point-of-sale terminal over structured cabling.

Top 3 Customer Questions & Concerns 🙋‍♂️

⚙️ Do I need to solder the wires inside? No. The adaptor comes with pre-crimped pins. You simply push the pins into the numbered holes on the DB9 block until they click into place.

⚠️ Why are there more wires than pins on the DB9? The RJ45 connector has 8 positions, while the DB9 has 9. This allows you to choose exactly which signals (such as RX, TX, and Ground) you need to carry over your network cable based on your device's manual.

🔌 Can I use this for internet or networking? While it uses an RJ45 port, this is not a network interface card. It is strictly for converting a serial port to a format that can travel over twisted-pair cabling.