Loopback-adapter DeLOCK RS-232/422/485 DB25 bus

The DeLOCK Loopback adapter for RS-232/422/485 with a DB25 female connector is designed to facilitate testing and troubleshooting of serial communication lines. Compact and portable, it enables simple connection of signal lines for loopback tests and basic error/data analysis. The adapter is supplied in a polybag and manufactured in Taiwan.

Advantages

The adapter provides a straightforward means to perform loopback tests on RS-232, RS-422 and RS-485 interfaces using a DB25 female connector. Its small dimensions make it easy to carry and position during testing. The product's construction and packaging support repeated use in professional or lab environments.

Suitable for

• Testing and troubleshooting RS-232 serial ports
• Checking RS-422 and RS-485 differential communication lines
• Loopback diagnostics during hardware or software development
• Maintenance and repair of serial communication equipment

Key specifications

• Connector: DB25 female
• Supported interfaces: RS-232, RS-422, RS-485
• Dimensions (W × D × H): 12.6 mm × 53.3 mm × 11.8 mm
• Packaging: polybag
• Origin: Taiwan
• Colour: Black, Silver
• Brand: DELOCK, MPN: 66831, EAN: 4043619668311

How to use

Connect the DB25 female loopback adapter to the corresponding DB25 serial port on the device under test. Use the adapter to close the required transmit and receive signal paths according to the loopback or wiring diagram for RS-232, RS-422 or RS-485. Run your diagnostic, terminal or test software to send data; verify that received data matches transmitted data to confirm line integrity and proper signal routing.

Recommendations

Ensure the device is powered and configured for the correct serial mode (RS-232, RS-422 or RS-485) before testing. Refer to the equipment wiring and signal reference to select the correct pins for loopback. Store the adapter in a dry environment when not in use to maintain connector condition.