Description
The Mitel MH88634-2 Central Office Interface Circuit trunk provides a complete analogue and signalling link between audio switching equipment and a telephone Line. The device is available in a single in line package for high packing densities or with a lead frame formed at 90° for low clearance applications.

Features
• Loop Start Trunk Interface
• 600Ω & 900Ω Input Impedance
• 2-4 Wire Conversion
• Line state Detection Outputs:
• - Forward Loop
• - Reverse Loop
• - Ringing Voltage
• - Switch Hook
• One Relay Driver
• On-Hook Reception
• Small footprint area
• Meets FCC Part 68 Leakage Current Requirements

Applications
Interface to Central Office for:
• PABX
• Key Telephone Systems
• Channel Bank
• Voice Mail
• Terminal Equipment
• Digital Loop Carrier
• Optical Multiplexer