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FireBird CoaXPress Frame Grabber (Quad CXP-6)

Part Number: AS-FBD-4XCXP6-2PE8

  • Four CoaXPress connections, each at 6.25 Gbps.
  • RISC based ActiveDMA engine gives acquisition with zero CPU usage.
  • 8-lane Gen2 PCI Express interface.
  • Half-length PC format.
  • Windows and Linux support.
  • Certified compliant through the JIIA CoaXPress Product Certification Program.
  • Full GenICam support via GenTL Producer.
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Products Specs


Ordering Info


This product is now end-of-life. We recommend the FireBird CoaXPress frame grabber AS-FBD-4XCXP12-3PE4 as replacement. Please contact sales for remaining stock and alternative products.

Product description

The FireBird Quad CXP-6 frame grabber is a member of Active Silicon’s FireBird frame grabber family.

FireBird is designed for ultimate performance using Active Silicon’s proprietary DMA Engine technology, “ActiveDMA”. This technical innovation applies RISC based processor techniques and guarantees zero CPU intervention, high-speed and low-latency image data transfers.

CoaXPress is a leading transmission standard for high-speed imaging in professional and industrial applications. Each CoaXPress connection supports up to 6.25 Gbps data rates, along with device power up to 13W and device control at 20 Mbps all on a single coax cable. For faster devices, the connections can be concatenated to provide multiples of the single coax bandwidth. Very long cable lengths are supported up to 40m at 6.25 Gbps and over 100m at 3.125 Gbps using Belden 1694A cable – or even longer lengths using thicker cables. Active Silicon is one of the primary authors of the CoaXPress international standard, which is hosted by the JIIA (Japan Industrial Imaging Association). All our CoaXPress products are certified compliant to the specification through the JIIA CoaXPress Product Certification Program.

FireBird is supported by Active Silicon’s software development kit, ActiveSDK. This is available as a separate item and allows rapid system development and integration. It provides comprehensive example applications and optimized libraries, and supports a variety of operating systems via a common API, including Windows, Linux and QNX. Drivers for third party applications are also available such as Cognex VisionPro, HALCON, Common Vision Blox, StreamPix, LabVIEW etc. Full GenICam support is included in the drivers and this includes a GenTL Producer for data streaming as well as register accesses. In addition to functions that control the hardware, the libraries include general purpose functions for the manipulation and display of images. A separate datasheet describes ActiveSDK in detail.

Specification summary

CoaXPress Interface:

Four 75 Ohm BNC connectors each operate at all CXP speeds up to 6.25 Gbps.  Up to 17W is available to power cameras on each BNC via Power over CoaXPress (PoCXP), with 13W available at the camera according to the CXP specification.

FireBird supports one camera using all four connections, two cameras each using two connections, or up to four cameras each using one connection.

LEDs built into each BNC show the link status according to the CoaXPress specification.

Buffer Memory:

512 MBytes of DDR3 memory is fitted for buffering between the CoaXPress interface and the PCI Express bus.

PCI Express:

8-lane Gen2 interface typically providing 3.4 Gbytes/sec transfer from FireBird to the PC, subject to PC performance.


The following I/O lines are provided for triggers, shaft encoders, exposure control and general I/O:

  • 4 opto-isolated inputs.
  • 4 opto-isolated outputs.
  • 4 TTL inputs, 5V tolerant.
  • 4 TTL outputs, 5V logic.
  • 4 RS-422 inputs.
  • 4 RS-422 outputs.

All these I/O signals are provided on a 50-way header on the FireBird board.

Power Input:

An 8-way PCI Express Graphics (PEG) connector is provided to connect to a 6 or 8-way PEG connector from the PC power supply. This is only needed for PoCXP.

Fan Controller:

The fan speed is linked to the temperature of the FPGA die for optimum cooling and noise level.


PCI Express Interface:

PCI Express bus eight lane Gen2 interface to Specification Revision 2.0, with a max payload size of 512 bytes.

FireBird Quad CXP-6 supports both Short (32-bit) and Long (64-bit) Address packets. It also generates Posted Writes for image data, thus achieving transfer rates in excess of 3.4 GBytes/sec, subject to host performance.

The board requires 16 MBytes of address space.


FireBird Quad CXP-6 conforms to v1.1.1 of the CoaXPress specification.



  • CE-mark for compliance with EMC EN 55022:2010 (class A) and EN 55024:2010 in accordance with EU directive 2014/30/EU.
  • RoHS –  compliance to RoHS3 directive 2015/863/EU.


  • EMC FCC Class A.

The printed circuit board is manufactured by UL recognized manufacturers and has a flammability rating of 94V-0.

Physical and environmental details


PCB: 168mm by 111mm.
Overall: 187mm by 111mm.

Approximate Weight:


Power Consumption (typical):



+12V PEG Connector
Up to 68W for PoCXP

(Measured while acquiring from four CXP-6 connections)

Storage Temperature:

-15°C to +85°C.

Operating Temperature:

0°C to +60°C.

Relative Humidity:

10% to 90% non-condensing (operating and storage).

Ordering Information

Part number Description


FireBird Quad CXP-6 frame grabber.


Software Development Kit for xxx operating system.

For a full list of all supported operating systems please refer to the ActiveSDK datasheet, or contact your distributor.


BNC to BNC cable x metres in length for use with CoaXPress video sources.  Made from Belden 1855A cable rated to CXP-6.

The standard stock length is 3m.

High-flex rating and much longer length cables also available – contact your distributor for details.


As above, but BNC to DIN1.0/2.3.


As above, but BNC to Micro-BNC cable and made from Belden 4855R cable rated to CXP-12.

Video tutorial – Introduction to ActiveCapture

ActiveCapture is a consumer application for camera and frame grabber control and is provided with all FireBird frame grabbers.

FireBird CoaXPress and Camera Link frame grabbers

Frame grabbers from Active Silicon bring real-time, high-resolution image acquisition to your vision system. Learn more about Active Silicon range of frame grabbers, about possible customization and additional benefits by watching this video: