TN2182C Tone Clock
The TN2182C Tone Clock Integrates the tone generator, tone detection, system clock, and synchronization functions into one circuit pack that can be used for standard, high, and critical reliability systems.
It supports 8 ports for tone detection and allows gain or loss to be applied to Pulse Code Modulated (PCM) signals received from the bus. The TN2182C provides Stratum 4 enhanced clock accuracy and supports MFC signaling and places single tone on any of the 256 time slots of the system's Time Division Multiplexing (TDM) bus.
While providing continuous, cadenced, and mixed tones, it allows administrable settings of tone frequency and level. It has the ability to detect 2025 Hz, 2100 Hz, 2225 Hz modem answerback tones, and provides normal and wide broadband dial tone detection.