AT&T MDC 9000 Installation Manual download pdf (Page 12)

          

! "    #$%$  & ' 5



 /     

Partner systems are built using 1 – 10 Partner circuit cards, assembled into a

Carrier (or pair of carriers.) In the sections below, we describe the whole

package (system), and introduce the circuit cards. Many of the cards are

usable in later systems, but are only described in the section corresponding to

the system in which they were first introduced.

For each system, we identify the different processor releases. Each release

adds functionality or support for new modules or accessories. Non-processor

modules also went through a revision process, though at this time, we do not

have descriptions for the different revisions.

# *  +    7  " &     

Here in a single chart are all the Partner systems compared side-by-side. This

is not intended to be comprehensive: read the detailed descriptions that

follow.

 ,  *  +  "   8    

     9  *  +  "  3:  6    



1 – 2 modules 4 x 12 Limited

 

1 – 5 modules 10 x 30 Moderate



1 – 10 modules 16 x 48

or 24 x 24

Many

    

1 – 5 modules 15 x 40 Many

   

1 – 5 modules 19 x 44

or 9 x 48

Very many

Upgrades from one to the next system generally require only changing the

processor.

All Partner processors and some other modules provide Power Fail Transfer,

allowing a standard tip/ring phone to be connected automatically to a CO line

during a power failure.

The modules are described after the systems, in section 2.8, “Partner

Modules.”

   +  " -  , , 

Partner systems consist of 1 to 10 modules (circuit cards) assembled into 2-

or 5-slot carriers. Some single-module configurations are possible, and do not

require a carrier. Each Partner module has its own power supply, and

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AT&T MDC 9000 Installation Manual Page 12

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