AT&T 518-600-016 manual System Hardware

System Hardware

MERLIN II SYSTEM COMPONENTS

CONTROL UNIT COMPONENTS

The MERLIN II system includes the following hardware:

●Control unit

●Voice terminals

>Analog

>Digital

●Basic Touch-Tone

●Digital data equipment

●Modems

●System accessories/auxiliary devices

The assembly of modules containing a power source, a processor, and jack connections for outside lines, tie lines, MERLIN II system telephones, and other devices mounted on a carrier is called the control unit (Figure 1-4).The individual components are as follows:

●Basic carrier. The basic carrier is the main housing for the control unit. Every MERLIN II system must have at least one basic carrier, which houses the Power Supply Module, Processor Module, and up to five line and/or station modules.

●Expansion carrier. The expansion carrier provides slots for an additional Power Supply Module and six line and/or station modules. The expansion carrier does not require a Processor Module.

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