DELOCK networking cable Cat5e 2 m — DB-9 (Sub-D 9) to RJ-45, Black

DELOCK networking cable Cat5e 2 m — DB-9 (Sub-D 9) to RJ-45, Black is an adapter cable that connects a Sub-D 9 (DB-9) serial connector to an RJ-45 plug, allowing RS-232/422/485 serial signals to be transmitted over Cat5e structured cabling. With a 2 m length and straight male DB-9 and RJ-45 ends, the cable provides a simple way to link serial devices to RJ-45 based interfaces used in industrial controllers, networking equipment and legacy systems.

Advantages

Using Cat5e cable for serial transmission often yields better signal integrity and can support higher data rates and longer distances than a standard RS-232 cable, reducing the need for intermediate signal amplification. The pre-assembled adapter cable is ready to use, black in color and sized at 2 m for typical rack-to-equipment or close-panel connections.

Suitable for

• Connecting RS-232, RS-422 or RS-485 serial devices to RJ-45 based ports
• Extending serial links over structured Cat5e cabling within equipment rooms or industrial sites
• Integrating legacy serial equipment with networked serial adapters or terminal servers

When it may not be suitable

This cable does not convert signal levels or protocols; it is a passive adapter and requires compatible pinout wiring and devices that support serial signalling over RJ-45. It is not a substitute for an active level shifter, USB-to-serial adapter, or protocol converter when such conversion is needed.

Key specifications

• Cable type: Cat5e
• Length: 2 m
• Connector A: DB-9 (Sub-D 9) male, straight
• Connector B: RJ-45 male, straight
• Color: Black
• Supported interfaces: RS-232, RS-422, RS-485 (passive wiring)

How to use

Connect the DB-9 male end to the serial device and the RJ-45 male end to the RJ-45 serial port, terminal server or patch panel wired for the appropriate serial pinout. Ensure the cabling and remote port use the same wiring standard for the serial signals (pinout) and verify device settings for baud rate and protocol before operation.

What to consider before purchase

• Whether the remote RJ-45 port is wired for serial signalling and uses a compatible pinout
• If active level conversion or protocol translation is required (this cable is passive)
• Required cable length and installation environment (2 m length and Cat5e specification)

Usage recommendations

Confirm pinout compatibility between devices and, where possible, test the connection at low data rates before deploying at higher speeds or longer runs. For runs beyond typical Cat5e length limits for your application or where signal integrity is critical, consider using signal repeaters or active converters.