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M o d e m    P u m p ™


T1 Two Channel, High Speed Synchronous Multi-protocol (HDLC/SDLC/X.25) PC/AT Modem Interface

Standard Features
Modem Pump

  • Two versions for compatibility:
       - MP-232: EIA-232D DTE (RS-232C)
       - MP-530: EIA-530 D1 E (Mb-422, Hb-449)

  • Electrical interface compatibility:
       - MP-232: V.24 (X.21bis), V.54
       - V.32N.42bis and ISO 2110
       - X.26/X.27, V.37
       - MP-530: V.24 (X.21 bis), V.28, V.54

  • Fractional T1 compatibility for gateway applications plus ISDN and Frame Relay

  • Sample HDLC/SDLC software provided at no charge

  • Parallel interface switch closure or TTL-compatible. The board has pull ups on all parallel input signals

  • Maps anywhere in the PC I/0 address space; requires eight consecutive I/0 address locations

  • Jumper selectable interrupts 3, 4, 5, 7, 10, 11, 12, 15 with interrupt tri-state feature

  • Half size FCC approved ISA card form factor

  • Interrupt sources:
       - MP-232: DCE Ready A and B, and Ring Indicator A and B
       - MP-530: DCE Ready A and B only

  • Accepts both external receive and transmit clock inputs

  • DMA channels 0, 1 and 3 jumper selectable for either channel