Esf T1 Channel Service Unit Connections - AT&T MERLIN LEGEND System Reference Manual

Hardware
Figure 5-11

ESF T1 Channel Service Unit Connections

Universal Paging Access
Module
Telephone Adapters
Multi-Function Module
5-20 Adapters
The UPAM connects customer-provided paging equipment to a loop-start jack
on the control unit. This module should be used with a PagePac paging system
when the accompanying Zonemate equipment is not used. An
acknowledgement tone is not provided when a UPAM is used.
The UPAM is ordered as a D-kit. The kit contains a power source, a microphone
matching transformer, and an access module.
The adapters described below are used to connect various adjuncts to the
t e l e p h o n e s .
The Multi-Function Module (MFM) is an optional digital adapter for connecting
tip/ring (T/R) or supplemental alert adjuncts to any MLX telephone The MFM is a
circuit board that mounts inside the telephone. Adjuncts plug into a modular
jack on the MFM. The MFM is the only T/R adapter used with MLX telephones.
Note: An MFM cannot be used in an MLX-20L telephone serving as a QCC.