URI:
       Index of /pdf/sel/sel32_mpx/3.5
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   DIR /pdf/sel/sel32_mpx
       322-001551-500_MPX-32_Revision_3.5_Technical_Manual_Volume_1_Apr90.pdf
       322-001552-500_MPX-32_Revision_3.5_Technical_Manual_Volume_II_Resident_Modules_and_Handlers_Apr90.pdf
       323-001533-600_MPX-32_Revision_3.5_Reference_Manual_Volume_III_Apr90.pdf
       323-001551-600_MPX-32_Revision_3.5_Reference_Manual_Volume_I_Apr90.pdf
       323-001552-600_MPX-32_Revision_3.5_Reference_Manual_Volume_II_Apr90.pdf
       323-001554-600_MPX-32_Revision_3.5_Reference_Manual_Volume_IV_Unsupported_Software_Apr90.pdf
       324-004400-700_MPX-32_Revision_3.5_Software_Release_Notes_Apr90.pdf