Coaxlink QSFP28
100G CoaXPress-over-Fiber frame grabber
© EURESYS S.A. - Subject to change without notice
6/10/2025 Datasheet 100G CoaXPress-over-Fiber frame grabber /--/uploads/2025/06/CoaxlinkQSFP28_2.png)
Main benefitsOther benefitsSpecificationsMechanical
Host bus
Camera / video inputs
Area-scan camera control
Line-scan camera control
On-board processing
General Purpose Inputs and Outputs
C2C-Link
Software
Environmental conditions
Certifications
Ordering Information
Offices
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Highlights
CoaXPress-over-Fiber is a light but significant extension of the existing CoaXPress specification to support transport over fiber optics
By using fiber optics connectivity, CoaXPress-over-Fiber benefits from the almost unlimited cable lengths and reduced cable congestion (fiber optics are lighter and thinner than coaxial cables). By leveraging Ethernet Physical Layer standards (IEEE 802.3), CoaXPress-over-Fiber also benefits from the low-cost standard components (such as connectors and cables) and their constant evolution towards higher bandwidths.
Most importantly, CoaXPress-over-Fiber allows CoaXPress to go beyond the physical limitations of coaxial cables in terms of bitrate.
Main benefits
Other benefits
Latest release
eGrabber 25.05
- Notifications
This release of eGrabber adds a notification tool to list the popup messages received during the session. - Improved high DPI support
Starting with this release, eGrabber Studio adapts the scaling for high DPI displays.
This improves the readability on high DPI screens.
- Additional Converter information
This release of eGrabber exposes additional information about the Coaxlink CXP-12 to QSFP+ Converter at the GenApi Interface module, for example: ConverterFirmwareVersion and ConverterSerialNumber. - Improved update procedure
Starting with this release, it is possible to update the Coaxlink CXP-12 to QSFP+ Converter while operating in converter mode.
Driver
- MementoRead moreIn high-end inspection machines using vision, the frame grabber is responsible for acquiring images in synchronization with numerous external devices such as motion or lighting controllers, not to mention the camera itself. Debugging these systems often requires complex equipment, for example, oscilloscopes and logic analyzer, which are used along with software profilers. The problem is even more acute with the latest cameras available, which allow for very fast frame rates exceeding several hundred, even thousand frames per second.
- GenICamRead moreGenICam is a global set of standards to interface industrial cameras to computer software applications (such as machine vision). It allows a homogenization of the wording, the interfaces and the processes in image processing, acquisition and transport. By providing all users with a common set of names and configurations, it ensures communication regardless of the supplier implementation details, feature set, or interface technology. It is the basis for high-speed video standards like GigE Vision, USB3 Vision, CoaXPress or Camera Link.
- C2CLinkRead moreC2C-Link enables the synchronization of multiple cameras attached to one or multiple Coaxlink cards in the same or distant PC’s. The Coaxlink series of frame grabbers exists in varied modularity to accommodate specific camera stream constraints: 1 to 8 cameras and 6.25 Gbps (CXP-6) to 12.5 Gbps (CXP-12) per connection. Further expansion is possible through synchronizing multiple boards within a deterministic synchronization window.
Specifications
Mechanical
- Form factor
PCI Express card
- Format
Standard profile, half length, 8-lane PCI Express card
- Cooling method
Air cooling, fan-cooled heatsink
- Mounting
For insertion in a standard height, 8-lane or higher, PCI Express card slot
- Connectors
'QSFP28' on card bracket:
QSFP+ 28Gb/s 4X Pluggable Transceiver port
CoaXPress-over-Fiber Host Interface
'EXTERNAL I/O' on card bracket:
26-pin 3-row high-density D-Sub female socket with UNC4-40 jack socket screws
I/O lines and I/O power output
'INTERNAL I/O 1' on printed circuit board:
26-pin 2-row 0.1" pitch pin header with shrouding
I/O lines and I/O power output
'INTERNAL I/O 2' on printed circuit board:
26-pin 2-row 0.1" pitch pin header with shrouding
I/O lines and I/O power output
'I/O EXTENSION' on printed circuit board:
26-pin 2-row 0.05" pitch pin header with shrouding
I/O extension cable socket
'C2C-LINK' on printed circuit board:
6-pin 2-row 0.1" pitch pin header with shrouding
Card-to-card link
'AUXILIARY POWER INPUT' on printed circuit board:
6-pin PEG power socket
12 V DC power input for I/O power output
- LED indicators
'A', 'B', 'C', 'D' on bracket:
Bi-color red/green LEDs
CoaXPress Host connector indicator
'FPGA STATUS LAMP' on PCB:
Bi-color red/green LED
FPGA status indicator
'BOARD STATUS LAMP' on PCB:
Bi-color red/green LED
Board status indicator
- Switches
'RECOVERY' on PCB:
2-way DIP switch
Firmware emergency recovery
- Dimensions
PCB L x H: 167.65 mm x 111.15 mm [6.6 in x 4.38 in]
- Weight
Net weight: 210 g [7.4 oz]
Gross weight: 310 g [10.9 oz]
Host bus
- Standard
PCI Express 4.0
- Link width
8 lanes
1 lane, 2 lanes or 4 lanes with reduced performance
- Link speed
16.0 GT/s (PCIe 4.0)
8.0 GT/s (PCIe 3.0) with reduced performance
5.0 GT/s (PCIe 2.0) with reduced performance
- Maximum payload size
512 bytes
- DMA
32- and 64-bit
- Peak delivery bandwidth
15,700 MB/s
- Effective (sustained) delivery bandwidth
13,500 MB/s (Host PC motherboard dependent)
- Power consumption
Typ. 30.64 W ( 0.04 W @ +3.3V, 30.6 W @ +12V), excluding I/O power output and optical transceiver module
Camera / video inputs
- Camera interface standard
CoaXPress
- Interface standard(s)
CoaXPress 1.0, 1.1, 1.1.1, 2.0, 2.1, CoaXPress-over-Fiber Bridge Protocol 1.1
- Maximum link speed
CXP-31
- Maximum link width
4 connections
- Connectors
QSFP+ 28Gb/s 4X Pluggable Transceiver (QSFP28) port
Compliant with CoaXPress-over-Fiber
Available power for the module: 5 W (SFF-8436 Power class 7)
- Status LEDs
One CoaXPress Host connection status LED per connection
- Number of cameras
Area-scan cameras:
One 1- or 2- or 4-connection camera
Line-scan cameras:
One 1- or 2- or 4-connection camera
- Maximum number of cameras
1
- Line-scan cameras supported
Yes
- Maximum aggregated camera data transfer rate
100 Gbps (12,500 MB/s)
- Supported CXP down-connection speeds
25 Gbps (CXP-31)
- Supported CXP up-connection speeds
Low-speed 20.83... Mbps (Device discovery)
Low-speed 41.66... Mbps (CXP-31)
- Number of CXP data streams (per camera)
1 data stream per camera
- Maximum CXP stream packet size
16,384 bytes
- Camera types
Area-scan cameras:
Grayscale and color (YCbCr, YUV, RGB and Bayer CFA)
Single-tap (1X-1Y) progressive-scan
Two-tap (1X-2YE) on two distinct data streams
Line-scan cameras and contact imaging sensors:
Grayscale and color RGB
- Camera pixel formats supported
Mono8, Mono10, Mono12, Mono14, Mono16
BayerXX8, BayerXX10, BayerXX12, BayerXX14, BayerXX16 where XX = GR, RG, GB, or BG
RGB8, RGB10, RGB12, RGB14, RGB16
RGBA8, RGBA10, RGBA12, RGBA14, RGBA16
YCbCr601_422_8, YCbCr601_422_10
YCbCr709_422_8, YCbCr709_422_10
YUV422_8, YUV422_10
Raw
Area-scan camera control
- Trigger
Precise control of asynchronous reset cameras, with exposure control.
Support of camera exposure/readout overlap.
Support of external hardware trigger, with optional delay and trigger decimation.
- Strobe
Accurate control of the strobe position for strobed light sources.
Support of early and late strobe pulses.
Line-scan camera control
- Scan/page trigger
Precise control of start-of-scan and end-of-scan triggers.
Support of external hardware trigger, with optional delay.
Support of infinite acquisition, without missing line, for web inspection applications.
- Line trigger
Support for quadrature motion encoders, with programmable noise filters, selection of acquisition direction and backward motion compensation.
Rate Converter tool for fine control of the pixel aspect ratio: Rate Conversion Ratio in the range 0.001 to 1000 with an accuracy better than 0.1%.
Rate Divider tool
- Line strobe
Accurate control of the strobe position for strobed light sources.
On-board processing
- On-board memory
8 GB
- Image data stream processing
Unpacking of 10-/12-/14-bit to 16-bit with selectable justification to LSb or MSb
Optional swap of R and B components
Little endian conversion
- Data stream statistics
Measurement of:
Frame rate (Area-scan only)
Line rate
Data rate
Configurable averaging interval
General Purpose Inputs and Outputs
- Number of lines
20 I/O lines:
4 differential inputs (DIN)
4 singled-ended TTL inputs/outputs (TTLIO)
8 isolated inputs (IIN)
4 isolated outputs (IOUT)
NOTE: The number of I/O lines can be extended using I/O modules attached to the I/O EXTENSION connector.
- Usage
Any I/O input lines can be used by any LIN tool of the I/O Toolbox
Selected pairs of I/O input lines can be used by any QDC tool of the I/O toolbox to decode A/B signals of a motion encoder
- Electrical specifications
DIN: High-speed differential inputs, up to 5 MHz, compatible with ANSI/EIA/TIA-422/485 differential line drivers and complementary TTL drivers
TTLIO: High-speed 5V-compliant TTL inputs or LVTTL outputs, compatible with totem-pole LVTTL, TTL, 5V CMOS drivers or LVTTL, TTL, 3V CMOS receivers
IIN: 200 kHz isolated current-sense input with wide voltage input range up to 30V, compatible with totem-pole (push-pull) HTL drivers, 5V TTL/RS-422 differential line drivers, 5V CMOS drivers, potential free contacts, solid-state relays and opto-couplers
IOUT: Isolated contact outputs compatible with 30V / 100mA loads
NOTE: IIN and IOUT lines provide a functional isolation grade for the circuit technical protection. It does not provide an isolation that can protect a human being from electrical shock!
- Filter control
Glitch removal filter available on all System I/O input lines
Configurable filter delay:
Custom value
Fixed values for DIN and TTLIO lines: 50 ns, 100 ns, 200 ns, 500 ns, 1 µs
Fixed values for IIN lines: 500 ns, 1 µs, 2 µs, 5 µs, 10 µs
- Polarity control
Yes
- Power output
Non-isolated, +12V, 1A, with electronic fuse protection
- I/O Toolbox tools
The I/O Toolbox is a configurable interconnection of tools that generates events (usually triggers):
Line Input tool (LIN): edge detector delivering events on rising or falling edges of any selected input line.
Quadrature Decoder tool (QDC): a composite tool including:
A quadrature edge detector delivering events on selected transitions of selected pairs of input lines.
An optional backward motion compensator for clean line-scan image acquisition when the motion is unstable.
A 32-bit up/down counter for delivering a position value.
Device Link Trigger tool (DLT): delivers an event on reception of a valid high-speed CoaXPress 2.0 connection trigger packet message from the remote device.
User Actions Scheduler tool (UAS): to delegate the execution of 'User Actions' at a scheduled time or encoder position. Possible user actions include setting low/high/toggle any bit of the User Output Register or generation of any User Events.
Delay tool (DEL): to delay up to 16 events from one or two I/O toolbox event sources, by a programmable time or number of motion encoder ticks (any QDC events).
Divider tool (DIV): to generate an event every nth input events from any I/O toolbox event source.
Multiplier/divider tool (MDV): to generate m events every d input events from any I/O toolbox event source.
The 'Input Tools' (LIN, QDC, DLT and UAS) can be further processed by the 'Event Tools' (DEL, DIV and MDV) to generate any of the following "trigger" events:
The "cycle trigger" of the Camera and Illumination controller
The "cycle sequence trigger" of the Camera and Illumination controller
The "start-of-scan trigger" of the Acquisition Controller (line-scan only)
The "end-of-scan trigger" of the Acquisition Controller (line-scan only)
- I/O Toolbox composition
Determined by the selected firmware variant:
'1-camera': 8 LIN, 1 QDC, 2 DLT, 1 UAS, 2 DEL, 1 DIV, 1 MDV, 2 C2C
'1-camera, line-scan': 8 LIN, 1 QDC, 2 DLT, 1 UAS, 2 DEL, 1 DIV, 1 MDV, 3 C2C
C2C-Link
- Description
Accurate synchronization of the trigger and the start-of-exposure of multiple grabber-controlled area-scan cameras.
Accurate synchronization of the start-of-cycle, start-of-scan and end-of-scan of multiple grabber-controlled line-scan cameras.
- Specification
C2C-Link synchronizes cameras connected to:
the same card
to different cards in the same PC (requires an accessory cable such as the "3303 C2C-Link Ribbon Cable" or a custom-made C2C-Link cable)
to different cards in different PCs (requires one "1636 InterPC C2C-Link Adapter" for each PC and one RJ 45 CAT 5 STP straight LAN cable for each adapter but the last one)
Maximum distance:
120 cm inside a PC
1200 m cumulated adapter to adapter cable length
Maximum trigger rate:
2.5 MHz for configurations using a single PC, or up to 10 PCs and 100 m total C2C-Link cable length
200 kHz for configurations up to 32 PCs and 1200m total C2C-Link cable length
Trigger propagation delay from master to slave devices:
Less than 10 ns for cameras on the same card or on different cards in the same PC
Less than 265 ns for cameras on different cards in different PCs (3 PCs and 40m total C2C-Link cable length)
Software
- Host PC Operating System
Microsoft Windows 11, 10 for x86-64 (64-bit) processor architecture
Linux for x86-64 (64-bit) and AArch64 (64-bit) processor architectures
macOS for x86-64 (64-bit) and AArch64 (64-bit) processor architectures
- APIs
EGrabber class, with C++ and .NET APIs: .NET assembly designed to be used with development environments compatible with .NET frameworks version 4.6 or higher
GenICam GenTL producer libraries compatible with C/C++ compilers:
'x86_64' dynamic library designed to be used with ISO-compliant C/C++ compilers for the development of x86-64 (64-bit) applications
'aarch64' dynamic library designed to be used with ISO-compliant C/C++ compilers for the development of AArch64 (64-bit) applications
- Memento supported
Yes
Environmental conditions
- Operating ambient air temperature
0 °C to +55 °C / +32 °F to +131 °F
- Operating ambient air humidity
10% to 90% RH non-condensing
- Storage ambient air temperature
-20 °C to +70 °C/ -4 °F to +158 °F
- Storage ambient air humidity
10% to 90% RH non-condensing
Certifications
- EMC standards
To be confirmed:
European Council EMC Directive2014/30/EU
United States FCC rule 47 CFR 15
- EMC - Emission
EN 55032:2015 + A11:2020 (harmonized standard) / CISPR 32:2015 + A1:2019 Class B
FCC 47 Part 15 Class B
- EMC - Immunity
EN 55035:2017 + A11:2020 (harmonized standard) / CISPR 35:2016
EN 61000-6-2:2019 / IEC 61000-6-2:2016
EN 61000-6-2:2005 (harmonized standard)
EN 61000-4-2:2009
EN 61000-4-3:2006
EN 61000-4-4:2013
EN 61000-4-6:2014
- KC Certification
Korean Radio Waves Act, Article 58-2, Clause 3
- Flammability
PCB compliant with UL 94 V-0
- RoHS
European Union Directive 2015/863 (ROHS3)
- WEEE
Must be disposed of separately from normal household waste and must be recycled according to local regulations
Ordering Information
- Product code - Description
PC3628 Coaxlink QSFP28
- Related products
PC1625 DB25F I/O Adapter Cable
PC1636 InterPC C2C-Link Adapter
PC3303 C2C-Link Ribbon Cable
PC3304 HD26F I/O Adapter Cable
PC3610 HD26F I/O Extension Module - TTL-RS422
PC3612 HD26F I/O Extension Module - TTL-CMOS5V-RS422
Download Area
eGrabber for Coaxlink, Grablink Duo, and Gigelink
- The
Coaxlink_NetApi.dllassembly was supported up to eGrabber 25.03 - Windows 7, Windows 8.1, Windows Server 2008 R2, and Windows Server 2012 R2 were supported up to eGrabber 24.12
- Windows x86 (32-bit) was supported up to eGrabber 21.0
- Linux x86 (32-bit) was supported up to eGrabber 17.0
- Before version 12.8, the driver package was called Coaxlink
- Coaxlink Quad CXP-3 was supported up to Coaxlink 10.5.2
Memento
- Windows 7, Windows 8.1, Windows Server 2008 R2, and Windows Server 2012 R2 were supported up to Memento 24.12
- Windows x86 (32-bit) was supported up to Memento 21.0
- Linux x86 (32-bit) was supported up to Memento 17.0