PIS Audio System PAN
The train borne Phone - & Announcement System PAN is a reliable digital announcement and communication solution for acoustic passenger information. State-of-the-art IP audio amplifiers with high-end audio quality ensure optimal sound within the train. The digital voice terminals using noise suppression allow for high speech clarity, which is essential for communication between passengers and the control center or driver.
The RCSS2170 is responsible for switching the audio streams. Audio sources are categorized and output according their priority. Digital signal processing of all audio information allows for expanding the system for additional audio sources and other functions.
The audio amplifier converts the digital audio data coming from the RCSS on-board computer into analogue amplified signals that are forwarded to the loudspeakers. In addition, the digital amplifiers are equipped with a UIC interface, which can be used as communication redundancy for improved availability e.g. in case of fire. The PAA2171 is used for decentralized public address (per passenger car) of the train. Due to the digital transmission of the audio data, interference on the useful signal can be significantly reduced. The conversion of the audio signal back to analog is only performed in proximity to the loudspeakers: at the respective amplifier. Thus, the loss of audio quality, which occurs with long vehicles at analog systems in multi-tractions, can be completely eliminated.
The passenger and emergency intercom terminals FGSS2197 / HRSS2197 are used as communication interfaces for the passengers. The Ethernet based digital voice communication interface is on the rear side of the terminals. It also can be used for the power supply (PoE). By using state-of-the-art audio processors, feedback from the loudspeaker as well as ambient noise can be filtered very effectively. Thus, the FGSS2197 enables excellent speech clarity for both conversation participants even at high driving speeds with a lot of ambient noise.
The universal Communication Box uCOB2200 serves as a universal audio communication interface, which can be used as a train-attendant or conductor telephone, driver's telephone in the driver's cab for communication with passengers or as a gateway for communication from VoIP-SIP to UIC.
- Intercom equipment
- Communications equipment
- Passenger information system