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Home » Phone Hardware » Avaya » Avaya UN331C Processor V9 -
Avaya UN331C Processor V9 - Grade A
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Avaya UN331C Processor V9 - Grade A
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Avaya UN331C Processor V9 - Grade A

SKU 103775 Refurbished (Grading Guide)
Was $87.99 You Save 57%
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Item Information
The UN331C controls the system and executes stored programs that perform call processing activity and maintenance. The UN331C is a RISC that is designed around a MIPS R3000A CPU that operates at 33 MHz. It employs 32-bit address and data buses to obtain and execute instructions at a rate approaching one instruction per clock cycle. The 256-Kb instruction cache with burst-mode refill and 256-Kb data cache are key to the performance of the processor. A read and write buffer chip tailors the UN331C to the call processing environment.


  • 512 Kbytes of ROM for the monitor
  • Counters and timers
  • UARTs
  • Control, status and error registers
  • Logic for bus arbitration and the Bus Time-Out feature


  • Avaya UN331C Processor


  • Definity Systems
Avaya UN331C Processor V9 - Grade A
These items have been refurbished. Refurbished items have been cleaned, tested, and confirmed to be fully functional. Grade A - Refurbished items show wear from consistent use and can have some scratches and may have some yellowing or discoloration.

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