AT&T administration and, Руководство по установке и обслуживанию

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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.
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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.
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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:
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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