Telecor Canada, UK, USA - AMS Audio Monitoring System

Signal Analysis
Audio signals from the intercom speakers are applied to the channel inputs. The input circuitry automatically adjusts the dynamic range based on real-time ambient noise levels, which allows for the detection of five programmable audio patterns. Instantaneous sound levels are sampled and stored in memory. Signal analysis incorporates both the instantaneous sample and a window-weighted average of the stored samples. The alarms are generated based on the digital signal analysis and the set of pre-programmed parameters.

Calibration and Programming
System calibration requires the adjustment of a single control per channel. The balance of the system detection parameters are programmed into the AMS from a PC. Precise values are entered in decibels and seconds, thereby eliminating the guesswork and multiple adjustments required with other systems. The versatility of the AMS is attributed to its ability to be programmed to detect several different sound characteristics. Each channel can be programmed to detect up to 5 types simultaneously.

Alarm Reporting
The AMS is equipped with an RS-232 port, which continuously reports changes in system status. All events are recorded and preceded with the time and date. Reports identify which channel initiated the alarm and which of the 5 alarm parameters were exceeded. In addition, an LED indicator on the Line Card illuminates, identifying the respective channel on the AMS card cage. When integrated with a Telecor Intercom Communications System, the AMS can initiate calls to designated Consoles, allowing the Console operator to process the alarm calls.

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