DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter

DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter

The DB9 to RJ45 serial adapter is a compact, versatile cable accessory designed to convert a standard 9-pin RS‑232 male DB9 connector into an RJ‑45 female jack. Housed in a durable molded plastic shell, this adapter simplifies the connection of legacy serial devices over modular twisted-pair CAT5/CAT6 cabling. The front panel includes thumbscrews for secure fastening to DB9 ports, while the RJ‑45 receptacle allows easy plug-in of network-style patch cables.

Internally, the adapter provides eight color-coded wires aligned in a specific pinout, allowing RS‑232 data, control, and ground signals to travel over Ethernet-style cabling. Since CATx cable often runs through centralized patch panels, this adapter makes it simpler to route serial communications across longer distances. Wire color coding and keyed RJ‑45 design help reduce miswiring.

By converting DB9 ports to RJ‑45 form factor, the adapter enables modular, low-cost infrastructure integration without the need for custom cables. It supports RS‑232 and in some variants even RS‑422/485 making it suitable for connecting telecom equipment, controllers, industrial instruments, and POS systems. Its compact size and industry-standard interfaces make it ideal for both field service and rack-mount installations.

Features:

• Converts DB9 male RS‑232 to RJ‑45 female interface.
• Molded plastic housing with DB9 thumbscrews.
• Color-coded wiring for easier termination.
• Compatible with CAT5/6 patch cables.
• Supports RS‑232, and some models support RS‑422/485.
• Compact through-panel/rack friendly format.

Specifications:

Applications:

• Serial console extension via patch panel.
• RS‑232 device networking.
• POS terminal integration.
• Telecom/modem serial uplinks.
• Industrial equipment cabling.

Package includes:

• 1x DB9 to RJ45 Serial Adapter RS232 Male to RJ-45 Female Ethernet Converter