Model TPRO-PMC Timecode Reader/Generator Board
The TPRO-PMC provides high-accuracy timing functions on a plug-in board with a PMC interface. The board’s on-board clock is kept in sync to an external timecode input.
Several timing functions are derived from the on-board clock, including a programmable periodic pulse rate output (“heartbeat”), a programmable start/stop output (“match”), a selectable frequency output (“oscillator out,” 1kHz, 1, 5, or 10MHz), and a time-stamping input (“time-tag”).
The TPRO-PMC obtains time from an input timecode, which can be IRIG-B or IRIG-A format. The board detects the format that is being used automatically, and timing accuracy is the same regardless of the format. The timecode conveys the day, hour, minute and second. The on-board 10MHz oscillator is disciplined to maintain a 1 microsecond accuracy. The board provides an IRIG-B timecode that is in-sync with the incoming timecode output.
The TPRO-PMC can be used as a stand-alone timecode generator. The computer programs the day, hour, minute and second. The board then continues to count from that time, using the on-board oscillator as the timebase reference (“freewheeling”).
Features
- IRIG-A, IRIG-B, and NASA36 timecode reader
- IRIG-B timecode generator
- Time-tag input
- Freewheel capability
- Programmable periodic output (pulse/squarewave) and interrupt capability
- Programmable start/stop time output and interrupt capability
- High-performance, 2.5 ppm oscillator
Downloads
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TPRO- PMC - datasheet, including full product specifications (61kb PDF)
TSAT PMC - Manual (567kb PDF)