Automatic Telephone Exchange In Kaliningrad

Automatic Telephone Exchange In Kaliningrad

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.

Automatic Telephone Exchange In Kaliningrad

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

Automatic Telephone Exchange In Kaliningrad

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

Automatic Telephone Exchange In Kaliningrad

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

Automatic Telephone Exchange In Kaliningrad

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

Automatic Telephone Exchange In Kaliningrad

The crosspoint is a device operated by electric magnets.

Automatic Telephone Exchange In Kaliningrad

Test telephones.

Automatic Telephone Exchange In Kaliningrad

The exchange is larger than it seems.

Automatic Telephone Exchange In Kaliningrad

Crossbar exchanges have been introduced in Russia from the 60 till the 80s. Nowadays, they are being replaced with digital exchanges.

Automatic Telephone Exchange In Kaliningrad

A block malfunction light panel.

Automatic Telephone Exchange In Kaliningrad

The first exchange serves about 10 thousand subscribers while the other serves just 5.

Automatic Telephone Exchange In Kaliningrad

A call-signaling assembly.

Automatic Telephone Exchange In Kaliningrad

Checking register-senders of the exchange.

Automatic Telephone Exchange In Kaliningrad

The exchange on the inside.

Automatic Telephone Exchange In Kaliningrad

This board has 10 numbers for the transmitting device of the automatic number identifier (ANI) encoded.

Automatic Telephone Exchange In Kaliningrad

Some fragment of the ANI transmitting device.

Automatic Telephone Exchange In Kaliningrad

That green light indicates that one of the subscribers doesn’t hang up the receiver for a long time which increases the wear and tear of the equipment. In this case, they try to contact the subscriber and remind him to hang up the receiver.

Automatic Telephone Exchange In Kaliningrad

Automatic Telephone Exchange In Kaliningrad

On the first floor of the building, you will find a museum launched by a local skilled artisan who collects and repairs the exhibits by himself.

Automatic Telephone Exchange In Kaliningrad

“Reel-to-reel machine TEMB-2M, 1972”.

Automatic Telephone Exchange In Kaliningrad

“Tape recorder Chaika-66, 1966”.

Automatic Telephone Exchange In Kaliningrad

“Mayak-233 stereo”.

Automatic Telephone Exchange In Kaliningrad

Automatic Telephone Exchange In Kaliningrad

“Wire broadcasting amplifier Dnepr, 1975”.

Automatic Telephone Exchange In Kaliningrad

“Radio receiver Kazakhstan, 1963.”

Automatic Telephone Exchange In Kaliningrad

Automatic Telephone Exchange In Kaliningrad

Multiple malls appearing in the city take away the scenery.

Automatic Telephone Exchange In Kaliningrad

The House of Soviets. The building is completed only on the outside.

Automatic Telephone Exchange In Kaliningrad

Trolley cars in Kaliningrad are the oldest in the country.

Automatic Telephone Exchange In Kaliningrad

Location: Kaliningrad

via russos

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