Autometers alliance ltd, an iso 9001 certified company is engaged in designing, manufacturing, supplying, installing & servicing various measuring, switchgear and power conversion equipments for railways and uninterruptible power supply [ups] for industrial applications. Autometers alliance ltd offers the public address and passenger information system [pa/pis] for the use in modern rail/road transportation systems. This microprocessor-based electronic system comprises audio and visual equipments and a central control unit. The following are its salient features:
1. public address throughout the train.
2. cab to cab communication.
3. passenger emergency alarm communication.
4. automatic route information and stopping pattern.
5. standard operational messages.
6. automatic announcement using pre-recorded messages.
7. automatic volume control of loudspeaker according to ambient noise.
8. automatic brightness control of external displays according to ambient light conditions.
9. audio link between the driver and control.
10. train radio interface.
11. power amplifier to drive loudspeaker with graphic equaliser function.
Used as saloon displays, external displays, passenger address system, cab to cab communication, warning/alarm
