Datum / Symmetricom Bc635pci-v2 Time & Frequency Processor Card, Pci

US $345.00

  • Marshfield, Massachusetts, United States
  • Jan 29th
2008 Model Features: IRIG A, B, G, E, IEEE 1344, NASA 36, XR3 & 2137 Time Code Inputs and Outputs Simultaneous AM or DCLS Time Code Inputs Simultaneous AM and DCLS Time Code Outputs 100-nanosecond clock resolution for time requests Programmable <<1 PPS to 100 MPPS DDS Rate Synthesizer Output/Interrupt 1, 5, or 10 MHz Rate Generator Output 1 PPS or 10 MHz Inputs External Event Time Capture/Interrupt Programmable Time Compare Output/Interrupt Zero Latency Time Reads Battery Backed Real Time Clock (RTC) PCI Local Bus Operation Universal Signaling (3.3V or 5.0V Bus) CE(RoHS) Compliant Linux, Solaris & Windows Software Drivers/SDKs available Optional OCXO Upgrade Overview: Symmetricom’s bc635PCI-V2 timing module provides unparalleled precise time and frequency to the host computer and peripheral data acquisition systems. Time is typically acquired from time code signals such as IRIG B. Central to the operation of the module is a disciplined 10 MHz oscillator that is either an on-board TCXO (or optional OCXO) or an offboard External oscillator that can provide the timing module’s 100-nanosecond clock. Current time (days to 100 nanoseconds) can be accessed across the PCI bus with no PCI bus wait states, which allows for very highspeed time requests. The selected on-board or off-board 10 MHz oscillator drives the module’s frequency and time code generator circuitry. If the input reference is lost, the module will continue to maintain time (flywheel) based on the selected 10 MHz oscillator’s drift rate. The optional OCXO oscillator improves flywheel drift performance over the standard TCXO. If power is lost, a batterybacked real time clock (RTC) is available to maintain time. Extensive time code generation and translation are supported. The generator outputs either IRIG A, B, G, E, IEEE 1344, NASA 36, XR3 or 2137 in both amplitude modulated (AM) and DC level shift (DCLS) formats. The translator reads and may be used to discipline the 10 MHz oscillator to either the AM or DCLS format of IRIG A, B, G, E, IEEE 1344, NASA 36, XR3 or 2137 time codes. The module also has a state-of-the-art DDS rate synthesizer capable of 0.0000001 PPS to 100 MPPS. The module may also be programmed to generate a single interrupt at a predetermined time based on a time compare (Strobe). An Event Time Capture feature provides a means of latching time of an external event. A key feature of the bc635PCI-V2 is the ability to generate interrupts on the PCI bus at programmable rates. These interrupts can be used to synchronize applications on the host computer as well as signal specific events. The external frequency input is a unique feature allowing the time and frequency of the bc635PCI-V2 to be derived from an external oscillator that may also be disciplined (DAC voltage controlled) based on the selected input reference. The module may be operated in generator (undisciplined) mode where an external 10 MHz from a Cesium or Rubidium standard is used as the frequency reference. This creates an extremely stable PCI based clock for all bc635PCI-V2 timing functions. The bc635PCI-V2 automatically supports both 3.3V and 5.0V signaling of the PCI bus. Integration of the module is easily facilitated with optional drivers for Windows 2000/XP, Linux, or Solaris. Specifications: Real Time ClockBus request resolution: 100 nanoseconds BCDLatency: ZeroMajor time format: Binary or BCDMinor time format: Binary 1 ?S to 999.999 mS Synchronization sources: Time code, 1 PPS Time code translator (inputs)Time code formats: IRIG A, B, G, E, IEEE 1344, NASA 36, XR3, 2137Time accuracy: <5 ?S (AM carrier frequencies 1 kHz or greater)<1 ?S (DCLS)AM ratio range: 2:1 to 4:1AM Input amplitude: 1 to 8V p-pAM Input impedance: >5k?DCLS Input: 5V HCMOS >2V high, <0.8V low, 270? Time code generator (outputs)Time code format: IRIG A, B, G, E, IEEE 1344, NASA 36, XR3, 2137AM ratio: 3:1 +/- 10%AM amplitude: 3.5V p-p +/- 0.5V into 50?DCLS amplitude: 5V HCMOS, >2V high, <0.8V low into 50? Timing functions (outputs are rising edge on time)DDS rate synthesizerFrequency range: 0.0000001 PPS to 100 MPPSOutput amplitude: 5V HCMOS, >2V high, < 0.8V low into 50?,square waveJitter: <2 nS p-pLegacy pulse rate (Heartbeat, aka Periodic)synthesizerFrequency range: <1 Hz to 250 kHzOutput amplitude: 5V HCMOS, >2V high, < 0.8V low into 50?,square waveTime compare (Strobe)Compare range: 1 ?S through daysOutput amplitude: 5V HCMOS, >2V high, < 0.8V low into 50?,1 ?S pulse1 PPS Output: 5V HCMOS, >2V high, < 0.8V low into 50?, 60 ?Spulse1 PPS Input: 5V HCMOS, >2V high, < 0.8V low, 270?External Event Input: 5V HCMOS, >2V high, < 0.8V low, 270?,zero latencyExternal 10MHz oscillator: Digital 40% to 60% or sine wave, 0.5 to 8Vp-p, >10k?Oscillator Control Voltage: Jumper selectable 0-5VDC or 0-10VDC into 1k? On-board disciplined oscillatorFrequency: 10 MHz1, 5, or 10 MHz output: 5V HCMOS, >2V high, < 0.8V low into 50?Stability:Standard TCXO: 5.0E-8 short term ‘tracking’5.0E-7/day long term ‘flywheeling’Optional OCXO: 2.0E-9 short term ‘tracking’5.0E-8 /day long term ‘flywheeling’ Real-time clock (RTC) Battery backed time and year information PCI local bus™Specification: 2.2 compliant2.3 compatiblePCI-X compatibleSize: Single-width (4.2” x 6.875”)Device type: PCI Target, 32 bit, universal signalingData transfer: 8-bit, 32-bitInterrupt levels: Automatically Assigned (PnP)Power: TCXO: +5V @ 700 mAOCXO: +5V @ 800 mA, 1.1 A at start-up+12V @ 50 mA ConnectorsFirmware update port 6 pin, PS2 mini-DIN J2Timing I/O: 15-pin ‘DS’ J1
Condition Used :
An item that has been used previously. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. This item may be a floor model or store return that has been used. See the seller’s listing for full details and description of any imperfections.
Seller Notes Missing J1 Cable

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