MH88634B
MH88634B is Central Office Interface Circuit Advance Information manufactured by Mitel Networks.
Features
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- - 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
DS5061 ISSUE 6 January 1999
Ordering Information MH88634BV-2 21 Pin SIL Package MH88634BT-2 21 Pin 90° L/F Package MH88634BV-4 21 Pin SIL Package 0°C to 70°C
Description
The Mitel MH88634-2 Central Office Interface Circuit trunk provides a plete 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. The device is fabricated as a thick film hybrid incorporating various technologies for optimum circuit design and very high reliability. This part supercedes the MH88634-2 and is pin for pin patible. We advise that the B rev parts are fully tested. However, we do not expect to see changes between MH88634-2 and MH88634BV-2. The ponent design has been changed to improve the general performance of the part. It is also now capable of operating at a 24V battery.
Applications
Interface to Central Office for:
- PABX
- Key Telephone Systems
- Channel Bank
- Voice Mail
- Terminal Equipment
- Digital Loop Carrier
- Optical Multiplexer
XLA XLB XLC XLD
AGND
Status Detection
TIP Dummy Ringer RING LRC LRD Loop Relay Driver Line Termination 2
- 4 Wire Hybrid
Receive Gain
Transmit Gain
Impedance...