• Transformerless 2-wire to 4-wire conversion
• Battery and ringing feed to line.
• Off-hook and dial pulse detection.
• Ring ground over-current protection.
• Constant current feed with constant voltage
foldover.
• Relay driver.
• Power Denial.
• Wide Operating Range.
• Pin for pin compatible 600R and 900R variants.
Applications
Line interface for:
• PABX
• Intercoms
• Key Telephone Systems
• Control Systems