The NetSpire Train Gateway Unit (TGU) is a rail certified (EN50155), network enabled audio amplifier with audio and hearing loop support. The NetSpire TGU has integrated DSP and Digital Voice Announcement functions.
The TGU connect directly to a 100 Base T Ethernet network, communicate via TCP⁄IP with the NetSpire Train Communications Exchange (TCX) and may be configured remotely.
The TGU supports live PA and prerecorded DVA announcements to loudspeakers and hearing impaired inductive loops (HIILs) within a rolling stock environment.
The unit also supports passenger information displays and help Points. The amplifier modules are a 140 watt, 100V Class D audio amplifier module. The HIILs modules are 10A Class D amplifiers.
The unit also has redundant power supplies and can support 24V or 110V systems.