2 Automatic Telephone Exchange In Kaliningrad

Automatic Telephone Exchange In Kaliningrad

Posted on February 29, 2012 by

The first generation of the automatic telephone exchange used in Russia was a decade-step exchange. The decade-step exchange was replaced with a crossbar exchange which in its turn was followed by a quasi-electronic exchange and digital exchange.

You are unlikely to find a decade-step exchange today while there are plenty of crossbar exchanges in the country.

So, let us take you to Kaliningrad to show you a crossbar exchange belonging to Rostelecom, Russia’s leading long-distance telephony provider.

There are two crossbar exchanges in the building on the right.

Wires connecting telephone subscribers and the exchange go to the cross room.

A couple of decades ago, these wires were extremely valuable and were used in household universally.

After the cross, the signal reaches the exchange where it gets switched by a device for switching telephone calls.

There are two automatic telephone exchanges in the building, number 45 and 46.

The crosspoint is a device operated by electric magnets.

Test telephones.

The exchange is larger than it seems.


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2 Responses to “Automatic Telephone Exchange In Kaliningrad”

  1. Brighter Bills says:

    The intricacies behind the scenes of an automatic telephone exchange – such an awe-inspiring sight!

  2. Tony says:

    holy shit, they are still running this? wtf?

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