MH88634K

Features:

• Loop Start Trunk Interface
• 600 Ohm input impedance
• Line state detection outputs:
- forward loop
- reverse loop
- ringing voltage
- service out
• Transformerless 2W to 4W conversion
• One loop start relay driver
• +/- 5V operation


Application

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


Pinout




Specifications

	Parameter	Sym	Min	Max	Units
1	DC Supply Voltages)	VBAT	0	-60	V
		VDD	-0.3	7	V
		VEE	0.3	-7	V
2	DC Ring Relay Voltage	VRLY	-0.3	7	V
3	Storage Temperature	TS	-55	+125	°C

Description

The Mitel MH88634K Central Office Trunk Interface circuit provides a complete audio and signalling link between audio switching equipment and a central office. The functions provided by the MH88634K include 2-4 Wire conversion, 600 Ohm input impedance and network balance. The device is fabricated as a thick film hybrid incorporating various technologies for optimum circuit design and veryn high reliability.