Microsemi / Symmetricom / Datum bc620AT PC Time and Frequency Module
  • Datum_TK11573-1000_204656_View1
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Microsemi / Symmetricom / Datum bc620AT PC Time and Frequency Module

This Symmetricom / Bancomm / Datum bc620AT PC Time and Frequency Module is new from surplus stock. This unit includes the Bus Level Products CD, BUS-WINDRV, and comes in the manufacturer's box.

View Photo of the CD.

Part Numbers: bc11573-1000, TK11573-1000

Product Family: 5998-01-406-8510 5998014068510

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Stock # 62693-2
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Microsemi / Symmetricom / Datum bc620AT / bc627AT PC Time and Frequency Module

  • PC, XT or AT Bus Operation (ISA/EISA Compatible)
  • GPS or Time Code Inputs
  • External Event Capture/Interrupt
  • Programmable Periodic Output/Interrupt
  • Programmable Time Strobe Output/Interrupt


Time is acquired from either the GPS satellites using a supplied antenna/receiver (bc627AT only) or from time code signals, typically IRIG B.

Central to the operation of the module is a disciplined 10 MHz oscillator and 100 nanosecond clock. Current time (days to 100 nanoseconds) can be accessed across the bus with zero latency, which allows for very high speed time requests. The oscillator is rate-matched (disciplined) to the input time source and drives the precision 10 MHz frequency output and time code generator circuitry. If the time source is lost, the module will continue to maintain time (flywheel). If power is lost, a 10 PPM battery backed clock is available to maintain time.

Product Family: bc620AT, bc627AT, bc620, bc627, 620, 627

Important Notice: Please note that any additional items included with this equipment such as accessories, manuals, cables, calibration data, software, etc. are specifically listed in the above stock item description and/or displayed in the photos of the equipment. Please contact one of our Customer Support Specialists if you have any questions about what is included with this equipment or if you require any additional information.

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Microsemi / Symmetricom / Datum bc620AT / bc627AT PC Time and Frequency Module

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