Detailed Cost Estimate for all Support Equipment
         e.g. Backplanes, Cardfiles, Power Supplies, Cooling
        -----------------------------------------------------

                                                         Rev. 12-APR-1995


Cardfiles Mechanical Components
-------------------------------

    Schroff:  Rails, Panels, Screw Kits     about  437.94  per cardfile

    Shelf brackets to mount card files in rack        .



Backplane Components
--------------------

    P1 Backplanes                                  500.    est

    P2P3 Printed Circuit Board                    1092.65  each (all included)
    P2P3 160 DIN Connectors                         13.20  each
    P2P3 160 pin connector shrouds                   1.89  each
    P2P3 Power Bars                                100.    est
    P2P3 Power Bar Mounting Hardware                15.    est
    P2P3 Ten-Points                                 10.    est
    P2P3 board mounting hardware                    10.    est

    DC Power Cable support brackets                 50.    est
    twist-flat signal cable support brackets        50.    est



Application Card Components
---------------------------

    P2P3 160 DIN Connectors                         17.10  each



Cooling Components
------------------

    Blowers                                           .
    Heat Exchangers                                   .
    Air Ducts                                         .
    Air Filters                                       .



Power Supply Components
-----------------------

    +5 Volt Bricks                   \                .
    +3 Volt Bricks                   |                .
    -2 Volt Bricks                   |  Total    2,500.    est
    -4.5 Volt Bricks                 /                .

    Power Pan Chassis                              200.    est

    AC Power Cords                                  25.    est
    AC Breaker                                      89.43  ea
    DC indicators and Test Points                   25.    est



DC Wiring Components
--------------------

    Ground Cable                     \                .
           Lugs                       |               .
                                      |
    +5 Volt Cable                     |               .
            Lugs                      |               .
                                      |
    +3 Volt Cable                     |               .
            Lugs                      |               .
                                      |
    -2 Volt Cable                     |               .
            Lugs                      | Total      250.    est
                                      |
    -4.5 Volt Cable                   |               .
              Lugs                    |               .
                                      |
    Cable Labels                     /                .



-----------------------------------------------------------------------------



Total for support items not including the cooling
-------------------------------------------------

The calculation of the total cost is complicated because we want to purchase
different numbers of different components.  For example we want to purchase
the total number of P2P3 backplanes and their 160 pin DIN connectors that we
will ever need.  Other components that are readily available at a later
time if the need should come up can be purchased just in the number that are
needed.


     Total for qty of 15 P2P3 backplanes with 160 pin
     DIN connectors and all special mechanical parts         38,694.75

     Total for qty of 12 P1 backplanes with all card
     file mechanical parts and AC & DC power wiring          15,456.00

     Total for 12 power supplies                             34,073.16
                                                         --------------

                                              Total          88,223.91
                                              ready to
                                              spend this FY