AT&T 518-600-016 manual System Hardware

●Processor Module. The Processor Module contains the circuitry that controls the system’s programs and features. It houses the Feature Module. Release 3 of the MERLIN II System must use Processor Module 517B7 with Feature Module 517F6.

●Feature Module. The Feature Module contains the Read Only Memory (ROM) and Random Access Memory (RAM) for the system features. It is housed inside the Processor Module. The MERLIN II Release 3 Feature Module(517F6) must be used only with the 517B7 Processor Module.

●Line and station modules. Line and station modules provide jacks for the system’s tie lines, outside lines, and stations. Line and station modules can occupy slots 1 through 5 in the basic carrier and slots 6 through 11 in the expansion carrier. There is no required slot assignment for line and/or station modules except that the module in slot 1 of the basic carrier must be a 408 or 008 module. Either of these modules provides the user with an analog station port (port 01) to administer the system.

>Analog line and station modules:

—4-Line/8-Analog (408) Module. The 408 module is required for a MERLIN II system minimum configuration. It has four jacks for outside lines and eight jacks for analog stations. The 408 module has a Power Failure Telephone (PFT) jack for connecting a Basic Touch-Tone or rotary telephone for backup during power outages. The system automatically switches service to this jack in the event of a power failure.

Simultaneous voice and data is available but requires you to connect both an odd and even numbered jack to the same voice terminal.

System Hardware 1-21