Cable gender changer Good Connections Alcasa 4945-MF RJ-45 to RS232 (D-Sub 9), 0.1 m, Black

Good Connections Alcasa 4945-MF is a compact cable gender changer that converts an RJ-45 socket to an RS232 D-Sub 9 (male) interface. The cable is 0.1 m long and finished in black, providing a simple passive connection for adapting network-style RJ-45 console ports to legacy serial devices using the RS232 standard. It is intended as a short inline adapter rather than a data cable for long distance communication.

Advantages

This adapter offers a compact, low-profile solution for converting an RJ-45 connection to a D-Sub 9 RS232 male plug without additional hardware. Its very short length reduces cable clutter and is useful where only a direct adapter is required. The black housing and standard connector types make it compatible with common console ports and serial equipment.

Suitable for

• Connecting RJ-45 console ports on networking equipment to RS232 D-Sub 9 serial ports
• Interfacing legacy industrial devices or instrumentation that use RS232
• Short, in-rack or on-desk adaptations where minimal cable length is needed

When it may not be suitable

This gender changer is a passive adapter and does not perform signal level conversion or isolation. It is not suitable where active level shifting, USB-to-serial conversion, or full modem control signal mapping is required. The 0.1 m cable length is intentionally short and not designed for routing over distance or in environments that require flexible cable management.

Key specifications

• Connector A: RJ-45 female
• Connector B: D-Sub 9 (RS232) male
• Cable length: 0.1 m
• Color: Black
• Application: Passive gender changer for serial interfacing

How to use

Insert the RJ-45 end into the corresponding RJ-45 console or adapter port and plug the D-Sub 9 male into the serial device’s female RS232 connector. Ensure the pinouts of the connected devices match the expected wiring for your equipment; some hardware vendors use specific RJ-45-to-RS232 pinouts. Power off devices before connecting if recommended by the equipment manufacturer, then power them on after a secure connection is made.

What to consider before purchase

• Confirm the RJ-45-to-RS232 pinout required by your hardware
• Check whether active level conversion or signal conditioning is needed
• Ensure the 0.1 m cable length meets your installation and routing needs

Usage recommendations

Use this adapter for direct console or serial connections where a short, passive interface is sufficient. For remote connections or when RS232 voltage level conversion is required, choose an appropriate active converter or longer, shielded cables as needed.