MERLIN LEGEND Communications System Release 6.1
System Manager’s Guide
555-661-118
Issue 1
August 1998
System Components
Page 3-34Adapters
3
Adapters 3
This section describes the adapters that connect adjuncts to the system and to
telephones. System adapters connect directly to the control unit; telephone
adapters connect adjuncts to telephones.
System Adapters 3
Three system adapters connect directly to the control unit: a channel service unit
(CSU), the Loop-Start Trunk Adapter, and the PagePal™ paging access adapter.
A
channel service unit
(
CSU
) is the interface between the 100D module and the
Digital Signal 1 (DS1) T1 facility provided by the telephone company.
The Loop-Start Trunk Adapter and PagePal connect loudspeaker paging systems.
The PagePac
®
Plus loudspeaker paging systems require no system adapter.
Installation and operation of these adapters, as well as planning for them, is
handled by Lucent Technologies.
Telephone Adapters 3
The adapters described below connect adjuncts to telephones.
Multi-Function Module 3
The Multi-Function Module (MFM) enables you to connect tip/ring (T/R) or
supplemental alert adjuncts to an 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. You cannot install an
MFM in an MLX-20L telephone that is set up for QCC operation.
WARNING:
!
Only a qualified technician can install or repair an MFM. To eliminate the risk
of electrical shock, do not disassemble the MLX telephone.
T/R adjuncts operate independently of the MLX telephone. If the telephone is in
use, the adjunct can send and receive voice or data calls. An MFM
accommodates the following T/R adjuncts:
■ Answering machines
■ Fax machines
■ Modems
■ Credit card verification terminals
■ Cordless telephones
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