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MH88634
Central Office Interface Circuit Preliminary Information
Features
• • • Loop Start Trunk Interface 600 ohm input impedance, -2 variant Line state detection outputs: forward loop, reverse loop, ringing voltage, switch hook On-hook reception Transformerless 2W to 4W conversion One loop start relay driver +/- 5V operation Small footprint area (<4.75cm 2)
MH88634-2
ISSUE 2
April 1995
Ordering Information
21 Pin SIL Package
0° C to 70° C
• • • •
Description
The Mitel MH88634 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 MH88634 include 2-4 Wire conversion, 600 ohm input impedance and network balance.