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Part Number: MH88632
Description: The Mitel MH88632 Central Office Trunk Interface circuit provides a complete audio and signalling link between audio sw...
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MH88632
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DataSheet
General Description
MH88632 General Description
The Mitel MH88632 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 MH88632 include 2-4 Wire Hybrid conversion, programmable transmit and receive gains, programmable line impedance and programmable network balance. The device is fabricated using thick film hybrid technology which incorporates various technologies for optimum circuit design and very high reliability.
MH88632 Maximum Ratings
|
Parameter |
Sym |
Min |
Max |
Units | |
|
1 |
DC Supply Voltages |
VDD |
-0.3 |
7 |
V |
|
VEE |
0.3 |
-7 |
V | ||
|
2 |
DC Ring Relay Voltage |
VRLY |
-0.3 |
20 |
V |
|
3 |
Storage Temperature |
TS |
-55 |
+125 |
°C |
MH88632 Features
• Loop start and ground start capabilities
• Transformerless 2-4 wire conversion
• Programmable transmit/receive gain with 0dB defaults
• Programmable input impedance with 600 and 900 defaults
• Programmable network balance with 600, 900, and AT&T compromise default
• One loop start & two ground start relay drivers
• Line state detection outputs
• Forward loop, reverse loop, ring ground, tip ground, ringing voltage
• +5V operation
• On-hook audio reception (to accommodate ANI)
• Transformerless 2-4 wire conversion
• Programmable transmit/receive gain with 0dB defaults
• Programmable input impedance with 600 and 900 defaults
• Programmable network balance with 600, 900, and AT&T compromise default
• One loop start & two ground start relay drivers
• Line state detection outputs
• Forward loop, reverse loop, ring ground, tip ground, ringing voltage
• +5V operation
• On-hook audio reception (to accommodate ANI)
MH88632 Typical Application
Interface to Central Office for:
• PBX
• Key Telephone System
• Channel bank
• Voice Mail
• Terminal Equipment
• Digital Loop Carrier
• PBX
• Key Telephone System
• Channel bank
• Voice Mail
• Terminal Equipment
• Digital Loop Carrier
MH88632 Connection Diagram
MH88632
PDF/DataSheet Download
- Datasheet: MH88632
- File Size: 160713 KB
- Manufacturer: MITEL [Mitel Networks Corporation]
- Click here to Download
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MH88632 Relative Products
MH88631
The Mitel MH88631-1, 2 Central Office Trunk Interface circuit provides a complete audio and signalling link between audio switching equipment and a central office. The loop seize circuitry is controlled by an external input to provide either a loop start of ...
MH88630
The Mitel MH88630 Central Office Trunk Interface circuit provides a complete audio and signalling link between an audio switching equipment and a central office. The loop seize circuitry is controlled by an external input to provide either a loop start or gr...
MH88628
The Mitel MH88628 SLIC provides all of the functions required to interface 2-wire off premise subscriber loops to a serial TDM, PCM, switching network of a modern PBX. The MH88628 is manufactured using thick-film hybrid technology which offers high voltage c...
MH88625
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MH88622
The Mitel MH88622 is a Dual Subscriber Interface Circuit which provides a complete interface between the telephone lines a dual codec, requiring a dual rail supply, battery and dc supply for ringing generation. The functions provided by the MH88622 includes ...
MH88620IN
The Mitel MH88620IN SLIC provides all of the functions required to interface 2-wire off premise subscriber loops to a serial TDM, PCM, switching network of a modern PBX. The MH88620IN is manufactured using thick film hybrid technology which offers high volta...
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