COMPUTER PERIPHERALS, INC.

VIVA 24 INTERNAL

Modem Type                   Data (asynchronous)
Maximum Data Rate            2400bps
Data Bus                     8-bit ISA
Data Modulation Protocol     Bell 103A/212A

                             ITU-T V.21, V.22, V.22bis
Error Correction/Compression MNP5, V.42bis

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                                CONNECTIONS

         Purpose           Location            Purpose           Location

  Line out                    CN1       Line in                    CN2

                  BASE I/O ADDRESS SELECTION

        Port                 JP2                  JP3

    COM1: (3F8h)       Pins 2 & 3 closed   Pins 2 & 3 closed

    COM2: (2F8h)       Pins 2 & 3 closed   Pins 1 & 2 closed

    COM3: (3E8h)       Pins 1 & 2 closed   Pins 2 & 3 closed

  » COM4: (2E8h)       Pins 1 & 2 closed   Pins 1 & 2 closed

           INTERRUPT SELECTION

         IRQ                 JP1

  » 3                 Pins 1 & 2 closed

          4           Pins 3 & 4 closed

          5           Pins 5 & 6 closed

          7           Pins 7 & 8 closed

                         Proprietary AT Command Set

               See document V1610 for a full command summary.