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Product Detail


DRV11-J Replacement Module – M8049

DRV11-J general purpose parallel interface controller for Qbus systems. Direct replacement for Digital’s DRV11-J (M8049)

DCQ-1400 Data Sheet

SKU: DCQ-1400-XX. Category: .

Product Description

The DRV11-J Replacement Module – M8049  (DCQ-1400) is a parallel interface for Q-bus systems that provides 64 input/output data lines. The DCQ-1400 is software and hardware compatible with Digital’s DRV11-J Q-bus controller and can be used as a direct replacement.

The DCQ-1400 includes an advanced interrupt structure with bit interrupt ability up to 16 lines, programmable interrupt vectors, and program selection of fixed or rotating interrupt priority within the DCQ-1400.

The DCQ-1400’s interrupt capability for real time response make it especially useful for sensor I/O applications. It can also be used as a general purpose interface to custom devices, and two DCQ-1400’s can be connected back-to-back as a link between two systems.

The DCQ-1400 is a dual-width controller that can be installed into a variety of PDP-11 and MicroVAX Digital systems.

DRV11-J Compatible
The DCQ-1400 provides the same operating features as Digital’s DRV11-J:

  • Four 3-state 16-bit parallel I/O ports
  • Acceptance of up to 16 external interrupt requests
  • Programmable interrupt vector addresses
  • Program-controlled input/output operations
  • Programmable operating modes

Software Compatible
The DCQ-1400 is application and diagnostic compatible providing a direct replacement for the DRV11-J. Diagnostic CVDRDB0 requires supplied patches to run all tests.

Hardware Compatible
The DCQ-1400 is signal and connector compatible to Digital’s DRV11-J allowing use of existing Digital user cables.

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