The IL2411 is a bipolar integrated circuit designed for telephone bell replacement.

• Designed for Telephone Bell Replacement

• Low Current Drain

• Adjustable 2-frequency Tone

• Adjustable Warbling Rate

• Extension Tone Ringer Modules

• Alarms or Other Alerting Devices

• Adjustable for Reduced Supply Initiation Current.

• Built-in hysteresis prevents false triggering and rotary dial ‘Chirps’