Lucent Technologies 5 manual Telephone Adapters, Multi-Function Module

MERLIN LEGEND Communications System Release 5.0		Issue 1
System Manager’s Guide 555-650-118		June 1997
3 System Components
	Adapters	Page 3-34
	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

■Single-line touch-tone telephones

■Supplemental alerts (bells, chimes, horns, and strobes)

The MFM is shipped with a power supply that supports one MFM and one DSS. When you connect two DSSs to a telephone, ask your Lucent Technologies representative about getting a different power supply. With either type of power unit, the total cord length cannot exceed 50 feet (15 m) from the telephone.

The MFM supports only touch-tone dialing and does not detect pulse dialing.

You cannot transfer or conference calls from a device connected to an MFM or use the Hold or Pickup features.

The MFM uses one of the two channels when it is active. A channel carries a voice or data call between the system and the extension. This means you cannot use Voice Announce and Speakerphone Paging when an adjunct (such as a fax machine) and an MLX telephone are in use at the same time. When Voice Announce is in use, a person calling an MFM extension gets a busy signal; a person attempting to call out from an adjunct extension with an MFM does not get a dial tone. Also, an adjunct connected by an MFM cannot provide a switchhook flash.