PCI Bus Card Feature Matrix

Compared below is the latest in PCI bus card timing technology as well as legacy PCI products. The PCIe and PCI-V2 cards represent the newest in PCI technology and are the migration path for users of the legacy bc635PCI-U. Symmetricom is committed to extending the product lifecycle of its bus level timing cards for as long as possible to support customer designs. The PCI-SG 2U is a long standing PCI card that continues to be popular with the installed base of users. We offer this comparison to aid you in selecting the model best suited to your requirements and application.

bc635PCIe bc635PCI-V2 bc635PCI-U PCI-SG 2U   Product Lifecycle Status New New Legacy Legacy Sync Inputs           GPS optional (bc637PCIe) 170 nanosecond accuracy optional (bc637PCI-V2) (1) 170 nanosecond accuracy       1PPS   AM and DCLS time code inputs   IRIG A, B, IEEE 1344 (2)   IRIG E, G, NASA 36, XR3, 2137     Sync Outputs           1PPS   IRIG B, IEEE 1344 (2)   IRIG A, E, G, NASA 36, XR3, 2137       Simultaneous AM and DCLS time code outputs     Timing Functions           Accuracy (3) 1 microsecond 1 microsecond 1 microsecond 1 microsecond   100ns Resolution   BCD Time   Unix/Binary Time     1, 5, 10 MPPS output   Programmable Rate Generation Outputs/Interrupts 0.0000001 PPS to 10 MPPS 0.0000001 PPS to 10 MPPS <1 PPS to 250 KPPS 1 PPS to 1 MPPS   Event Time Capture/Interrupts 3x Event Captures 1x Event Captures 1x Event Captures 1x Event Captures   Time Compare (Alarm) Output/Interrupts   Real Time Clock (In the event of a power failure.) Battery backed Battery backed Battery backed 3 day limit   Flywheeling/Holdover   OCXO for Extended Flywheel Accuracy;   10 MHz sine out optional optional optional     External Freq. Input – Disciplining Local Oscillator 1 PPS, 10 MHz 1 PPS, 10 MHz 1 PPS, 10 MHz 1 PPS   External Freq. Input – Cesium/Rubidium Direct 10 MHz 10 MHz 10 MHz     PCI Express, low profile card size, standard and low profile cover plates         Standard half size card (4.2" x 6.875")     3.3V and 5.0V Universal Signaling on PCI Local Bus; PCI-X Compatible   Software and Drivers           Windows   Solaris     Linux

(1) The bc637PCI-V2 is the replacement for the discontinued bc637PCI-U.

(2) No IEEE 1344 support.

(3) Accuracy is a function of the input reference. Time codes are generally 1-5 microseconds, GPS is 170 nanoseconds to 1 microsecond depending on model. See datasheets for full details.