{"product_id":"symmetricom-bc637pcie-tcxo-gps-clock-pc-time-sync-pcie-card-frequency-irig-b-used","title":"Symmetricom BC637PCIe TCXO GPS Clock PC Time Sync PCIe Card Frequency IRIG-B [Used]","description":"\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\n\u003cp\u003e\u003cspan style=\"font-family: Arial; color: #040758\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cstrong\u003eTested\/Guaranteed •\nSymmetricom BC637PCIe • TCXO • GPS PC Time Sync Card •\nTimecode\/Frequency Generator \u003c\/strong\u003e\u003cstrong\u003e• Fully\nWorking • With Antenna\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cspan style=\"font-size: 14pt\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/C1029838c.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/C1029838c.png\"\u003e\u003c\/p\u003e\n\u003cspan style=\"font-family: Arial\"\u003e\n\u003cp align=\"center\"\u003e\u003cem\u003e\u003cstrong\u003eActual item for sale\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eHere's a lightly used PCIe GPS time sync card for a\ncomputer that allows you to use the network of atomic\nclocks within the GPS satellite system to obtain highly\naccurate time, and if required to output a highly accurate\nGPS-disciplined pulse rate, frequency or timecode. It will\n\u003cstrong\u003enot\u003c\/strong\u003e work in a PCI slot. \u003c\/em\u003e\u003cem\u003eA\nbasic test antenna is inclued - see photos. The antenna\nvoltage is 5V. The antenna jack is a SMB type. The\nincluded antenna is provided to help you test the\ncard, but please note \u003c\/em\u003e\u003cem\u003ethat your antenna will\nneed to be outdoors with a full view of the sky to achieve\nsync reliably. It will not achieve sync behind a window.\nThe on-board battery has recently been replaced. The\nboard has been updated to the latest firmware version that\nI have in my archive and therefore shows the correct date\n- see screenshots taken while testing the actual card for\nsale.  Note that I do not have the full software\nsuite for this card.  I only have a basic test\napplication.  The buyer may need to contact Microsemi\nto obtain those files if they are needed.\u003cbr\u003e\n\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\n\u003cdiv align=\"center\"\u003e\n\u003cfont color=\"#000066\"\u003e\u003cb\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\n\u003cp\u003e\u003cem\u003eFurther product details may be obtained from the\nUser Manual at\u003cbr\u003e\nhttps:\/\/www.prostudioconnection.net\/2604\/BC635_637PCIe_Manual.pdf\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/b\u003e\u003c\/font\u003e\u003cfont style=\"font-family:\nArial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\n\u003c\/div\u003e\n\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\n\u003cp\u003e\u003cem\u003e\n\u003c\/em\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/2026-04-03_19-26-31.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/2026-04-03_19-26-31.png\"\u003e\n\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/2026-04-03_19-28-02.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/2026-04-03_19-28-02.png\"\u003e\n\u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/2026-04-03_19-27-44.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/2026-04-03_19-27-44.png\"\u003e\n\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/2026-04-03_19-28-16.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/2026-04-03_19-28-16.png\"\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/C1029839.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/C1029839.png\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003eThe GPS-referenced bc637PCIe timing module\nprovides unparalleled precise time and frequency\nfunctions to the host computer and peripheral\nsystems. Precise time is acquired from the GPS\nsatellite system or from time code signals.\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003e\nGPS synchronization provides 170 ns RMS accurate\ntime to UTC (USNO) enabling the bc637PCIe to\nprecisely synchronize multiple computers to UTC.\nIntegration into a custom application is easy and\nvery efficient through the use of the full-featured\nWindows and Linux SDKs\/drivers.\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003e\nExtensive time code generation and translation are\nboth supported. The translator reads and disciplines\nthe internal oscillator to either the amplitude\nmodulated (AM) and DC Level Shift (DCLS) formats of\nIRIG A, B, G, E, IEEE 1344,\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003e\nNASA 36, XR3, or 2137 time codes. The generator\noutputs either IRIG A, B, G, E, IEEE 1344, NASA 36,\nXR3 or 2137 in both AM and\/or DCLS formats.\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003e\nCentral to the operation of the module is a\ndisciplined TCXO 10 MHz oscillator that provides the\ntiming module’s 100 ns clock. Current time (days to\n100 ns) can be accessed across the PCIe bus with no\nPCIe bus wait states, which allows for very\nhigh-speed, low-latency time requests. The 10 MHz\noscillator drives the module’s frequency and time\ncode generator circuitry. If the input reference is\nlost, the module will maintain time (flywheel) based\non the 10 MHz oscillator’s drift rate. If power is\nlost, a battery backed Real-Time Clock (RTC)\nmaintains the time. \u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003e\nThe module has a state of the art Direct Digital\nSynthesizer (DDS) rate synthesizer with a range from\n0.0000001 PPS to 100 MPPS. The module may also be\nprogrammed to generate an interrupt at a precise\npredetermined time based on a time compare (strobe).\nThree Event Time Capture inputs provide a means of\nlatching time of different external events.\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003e\nA key feature of the bc637PCIe is the ability to\ngenerate interrupts on the PCIe bus at programmable\nrates. These interrupts can be used to synchronize\napplications on the host computer as well as signal\nspecific timing events over the bus. \u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family:\nArial\"\u003e\nThe unique external frequency input allows the time\nand frequency of the bc637PCIe to be derived from an\nexternal oscillator that may also be disciplined\n(DAC voltage controlled) based on the selected input\nreference. The module may be operated in generator\n(undisciplined) mode where an external 10 MHz from a\nCesium or Rubidium standard is used as the frequency\nreference. This creates an extremely stable\nPCIe-based clock for all bc637PCIe timing functions.\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/C1029840.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/C1029840.png\"\u003e\u003cbr\u003e\n\u003cb\u003eFeatures\u003c\/b\u003e\u003cbr\u003e\n\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eGPS\nsynchronized with 170 ns RMS accuracy to UTC\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eIRIG\nA,\nB, G, E, IEEE 1344, NASA 36, XR3 and 2137 time code\ninputs and outputs\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eSimultaneous\nAM\nand DCLS time code inputs and outputs\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e100\nns clock resolution for time requests\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eProgrammable\n\u0026lt;\u0026lt;1\nPPS to 100 MPPS DDS rate synthesizer\noutput\/interrupt\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e1,\n5 or 10 MPPS rate generator output\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e1\nPPS and 10 MHz inputs\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eThree\nexternal\nevent time capture\/interrupts\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eProgrammable\ntime\ncompare output\/interrupt\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eZero\nlatency\ntime reads\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eBattery\nbacked\nRTC\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eLow-profile\nPCIe\nform factor\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eLinux\nand\nWindows software drivers\/SDKs available (not included)\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/C1029843.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/C1029843.png\"\u003e\u003cbr\u003e\n\u003cb\u003eBenefits\u003c\/b\u003e\u003cbr\u003e\n\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003ePrecise\nsub-microsecond\ntime available to host computer\napplications\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eEasy\nintegration\nfacilitated by Windows and Linux SDKs and\ndrivers\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eExtremely\nfast\ntime reads\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eProgrammable\ntime\nand frequency functions to quickly customize for\nspecific applications\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eWide\nvariety\nof time codes facilitate easy integration with\nexisting systems\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eDedicated\nand\nresponsive technical support to assist in PCIe card\nintegration\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003eWell-documented\nfor\neasy and fast system integration\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/BC637PCIe-1.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/BC637PCIe-1.png\" class=\"shrinkToFit\" width=\"882\" height=\"1076\"\u003e\u003cbr\u003e\n\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e\u003cimg src=\"https:\/\/image.prostudioconnection.net\/2604\/BC637PCIe-2.png\" alt=\"https:\/\/www.prostudioconnection.net\/2604\/BC637PCIe-2.png\" class=\"shrinkToFit\" width=\"829\" height=\"1076\"\u003e\u003cbr\u003e\n\u003cfont style=\"font-family: Arial\" rwr=\"1\" size=\"4\"\u003e\u003cspan style=\"font-size: 14pt\"\u003e\u003cspan style=\"font-family: Arial\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/font\u003e","brand":"Symmetricom","offers":[{"title":"Default Title","offer_id":45124506681367,"sku":"287287898846","price":395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0119\/2496\/3387\/files\/57_7b47efd4-26cd-4212-b4a8-b2cbcd36eccd.jpg?v=1778435021","url":"https:\/\/prostudioconnection.com\/products\/symmetricom-bc637pcie-tcxo-gps-clock-pc-time-sync-pcie-card-frequency-irig-b-used","provider":"ProStudioConnection LLC","version":"1.0","type":"link"}