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

• 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