Telephone with call type inducer AMB-1 is powered only from the local battery. Designed to work in separate networks with up to 10 parallel connected devices of the same type MB and up to 10 additional ringtones.

One such system can handle section of the railroad between junction stations of approx. 30 km.

The phone can also operate with connective MB of input resistance of the inductor call signals at 20 Hz of not less than 1000Ω signaling the end of the conversation with the inductor.

The phone has a certificate of release to service in rail traffic, issued by the Office of Rail Transport No.: U / 2010/0173.

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