Nt5K21 Xmfc/Mfe Card; Contents; Introduction; Mfc Signaling - Nortel Circuit Card Installation Manual

NT5K21 XMFC/MFE card

Contents

Introduction

MFC signaling

This section contains information on the following topics:
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MFC signaling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MFE signaling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sender and receiver mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Physical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The XMFC/MFE (Extended Multi-frequency Compelled/Multi-frequency
sender-receiver) card is used to set up calls between two trunks. Connections
may be between a PBX and a Central Office or between two PBXs. When
connection has been established, the XMFC/MFE card sends and receives
pairs of frequencies and then drops out of the call.
The XMFC/MFE card can operate in systems using either A-law or µ-law
companding by changing the setting in software.
You can install this card in any IPE slot.
The MFC feature allows the system to use the CCITT MFC R2 or L1
signaling protocols.
Circuit Card Description and Installation
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