Transcript
R2D4 STM/LVDS Data Capture High Speed Communications Capture using PCI Express
R2D4 PCIe data capture card is a high-speed data acquisition card for capturing and creating communications and high-speed telemetry data up to 622 Mbps on a standard pc platform. . R2D4 uses advanced high speed processing techniques and the Linux operating system to ensure a reliable data transfer system can be implemented in a low-cost platform. STM-4 and STM-1 interfaces are provided for direct optical coupling together with a high-speed serial LVDS interface. Optional external interfaces allow the connection of multiple E1/T1 data streams . In LVDS mode, Inputs and Outputs are contained on the same card allowing it to be used as both a bypass and intercept device. The LVDS mode also features integrated synthesised clock source and the ability to synchronise with external sources. Data can be captured as raw, unaltered form or entry time-stamped for greater auditability and data security. In STM mode the card automatically discovers the contents of a STM-1 or STM-4 stream, and provides access to all virtual container levels. Where appropriate, VC decoding is carried out and VC contents passed through in an easily accessible form.Data can thus be selected from any or all VC levels for subsequent processing. Optical buffers are provided to route input to output allowing the card to be bypassed or to simultaneously intercept in a non-intrusive mode. In order to provide the greatest user and programmer flexibility, configurable control includes clock generation, latency buffer control and DMA transfer configuration. This flexibility of control makes the card very versatile for many differing applications. The card supports single and dual-stream data capture of STM-1 in variants that can be field-upgraded. The card is supplied with a GPL-licensed source code driver for Linux operating systems (Kernel 2.6.18 onwards) . High-speed DMA transfer and shared memory mapping ensure highest speed data throughput. Firmware updating in the field is accomplished using the built-in USB2.0 interface.
somerdata communications surveillance
1 Riverside Business Park St Annes Road Bristol BS4 4ED
Phone: Fax: E-mail: Website:
+44 (0)1179 634050 +44 (0)1173 302929
[email protected] www.somerdata.com
Specifications may be subject to change without notice
Specifications
R2D4
Operation Specifications
Status
PCI Express V1.1 Single lane
RJ-45 8-way connector
Indicators Control activity Internal power presence Re-programming busy/complete Signal presence/loss
Maximum Data rate 155Mbps .
Software Drivers
Clock out selectable per data stream
Linux Kernel 2.6, GPL
Internal Clock Range and Precision
Power PCI Express 3.3V, Bus Powered
Type LVDS - Part No. R2D4-ASSY-0120 Input/Output Connections -
150kHz- 155Mbps, 1.5% setting precision Electrical Signal Interface LVDS differential signals compatible with the IEEE 1596.3 and TIA/EIA-644 LVDS specifications. Input Signal Interface Data In, Clock In differential,
Consumption < 5watts (all models) Environmental Temperature 0°C to 50°C
Output (per data Stream)
Relative Humidity
Data Out, Clock Out, Data Valid Out, External Clock In* differential
5% to 95% non-condensing Minimum System Requirements for recording High-speed PCIe 1.1 platform with Serial-ATA 1. 0 disk subsystem (up to 155Mbps) or Serial ATA 2.0 disk subsystem (up to 622Mbps) or equivalent Linux operating system Kernel 2.6.18 onwards Recommended Processor Intel 2.6GHz min, 3GB local memory
Type STM Part Nos. R2D4-ASSY-0130 through to R2D4-ASSY-0133 Input/Output Connections - No of connectors – 2 -Type LC Maximum Aggregate Data rate 320Mbps . Virtual Container Extraction Supported levels VC2,VC3, VC4, VC11, VC12 Autodiscovery of STM-n contents Comprehensive status reporting including upstream alarms, signal/frame failure content change error statistics VC level status Part numbers and variants R2D4-ASSY-0120 : Single stream LVDS input/output to 155Mbps R2D4-ASSY-0130: Single Stream STM-1 input, STM-1 to VC-3 extraction, R2D4-ASSY-0131: Single Stream STM-1 input, STM-1 to VC2/11/12 extraction R2D4-ASSY-0132: Dual Stream STM-1 input, STM-1 to VC-3 extraction R2D4-ASSY-0133: Dual Stream STM-1 input, STM-1 to VC2/11/12 extraction R2D4-ASSY-0140: STM-4 input, STM-4 to VC-3 extraction
somerdata communications surveillance
1 Riverside Business Park St Annes Road Bristol BS4 4ED
Phone: Fax: E-mail: Website:
+44 (0)1179 634050 +44 (0)1173 302929
[email protected] www.somerdata.com
Specifications may be subject to change without notice
