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Product Detail

DRQ3B/DRPI Interface

DRQ3B/DRPI Option Module

DEC DRQ3B module replacement (M7658) with internal DRPI Interface (APG-63(V)1)

SKU: DQP-1501-AA. Category: .

Product Description

The DRQ3B / DRPI (DQP-1501) option module works with Logical’s NuVAX 4400 and NuPDPq 4200 systems to allow users to migrate from a Q-bus system to a PCI-based system while maintaining their investment in software and user equipment.

The DQP-1501 provides two functions:

  • Plug and play replacement for Digital’s DRQ3B Qbus I/O controller. Like the DRQ3B, the DQP- 1501 is a high performance 16-bit parallel interface designed for realtime data collection or for high-speed interprocessor communications. It provides PIO and DMA transfers to the DRPI interface at transfer rates of up to 1.3 MHz of 16- bit words.
  • Plug and play replacement for the APG-63(V)1 Radar Data Processor (DRPI) controller.

The DQP-1501 installs into a single PCI slot and connects to the NuVAX bus adapter and, optionally, other option modules by way of top-edge flat ribbon connectors. The DQP-1501 only requires DC power from the PCI slot.

The DQP-1501 is software compatible with Digital’s DRQ3B. The module has two independent 16-bit channels for connection to DRPI a device, allowing it to receive or send data or do both concurrently.
Data transfers are selectable as burst, block or extended block mode DMA. Interrupt priority levels are switch selectable and interrupt conditions are program selectable.

The DQP-1501 emulates the DRPI controller. The DQP- 1501 operates as a single DRPI channel, so two DQP- 1501 controllers may be required for DRPI applications. Connection to external RSP and RDP devices is through a 50-pin flat ribbon connector.

High Performance. Like the DRQ3B, the DQP-1501 provides transfer rates of up to 1.3 megawords per second (2.6 Mbytes per second in extended block mode). Its double buffering capability allows the DQP-1501 to transfer data continuously up to this maximum rate.

Software Compatible. The DQP-1501 works with NuVAX to provide a plug-and-play replacement for the DRQ3B.

Easy to Maintain. Fewer hardware components mean reduced maintaince overhead.

  • DRQ3B/DRPI Module
  • Module Interconnect
  • DRPI connector compatible

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