AMB-1 railway telephone

The AMB-1 railway telephone is a magneto ringing telephone powered only by a local battery. It is designed to provide reliable communication in railway infrastructure, where safe and stable contact is essential.

The AMB-1 works in dedicated MB networks. A single network can consist of up to 10 telephones of the same type and up to 10 additional bells. Thanks to this design, the AMB-1 supports simple yet effective communication systems for railways.

Moreover, one such system can cover a railway traction section of up to 30 km between junction stations. As a result, the telephone is highly useful for signal operators, maintenance teams, and other railway staff who rely on dependable contact.

The AMB-1 can also operate with an MB exchange. The exchange must provide an input resistance of at least 1000 Ω for 20 Hz magneto signals. Therefore, integration with existing systems is straightforward and does not require extra power from the exchange. The end of a call is indicated by the magneto generator, which keeps operation simple and reliable.

In addition, the AMB-1 railway telephone has received an operational approval certificate from the Polish Office of Rail Transport (UTK No. U/2010/0173). This certificate confirms compliance with railway standards and proves the telephone is safe for official use.

In conclusion, the AMB-1 railway telephone is a proven MB device that combines a simple design with durability and UTK approval. Thanks to these qualities, it remains a trusted solution for railway communication networks.