In accordance with operator consoles types, there are the following central units:
- Central unit for 41 programmable line terminals, CU Tm 4301-41
- Central unit for 20 programmable line terminals, CU Tm 4304-20
- Central unit for 14 programmable line terminals, CU Tm 4304-14
This unit
is intended for operating in traffic remote control centre, as well as
in electric traction remote control centre. It enables connection up to
300 selective telephone terminals and 16 line terminals on operator console.
Control unit can be applied in existing railway line telephone systems
on the main arterial routs in Serbia, Montenegro and Macedonia which are
made in relay technology i.e. it can substitutes complete dispatching
equipment.
