Universal Railway telephone (UPT)
UPT is a universal railway telephone device intended for communication at signals, tracks, platforms and shunting stations.
It is characterized by AC/DC power supply 20–72 VDC or 220 VAC, small size, low consumption and anti-vandal housing.
Supports optical and copper cables, hands-free or handset, as well as upgrade for GSM-R, TETRA and RDV systems.