VTO outside telephone unit

General description

a reliable telephone for service and emergency connection on railways
enables a reliable connection of railroad staff on the railway with stations or subscribers of the service telephone network
the versions VTO 3-5 enable the local connection of two independent lines via a local or trunk cable
versions VTO 6-11 enable connections on one line and are intended for places where connection is requested (level crossings, stations)
simple installation and handling
maintenance-free telephone with long life expectancy
modern design
weather-proof

the parts of the outside telephone unit are placed into a plastic box with lockable doors
the system telephone is mounted on a main hinged panel
the operating element and handset are mounted on the front side of the hinged panel
the steady power supply of the microphone circuit is ensured by supply sells placed in a case
a central power supply with a alternator with an output voltage of 1,2 up to 3 V can be used
the VTO is produced in various versions according to the place of destination and wish of the customer
average technical lifetime is 15 years