SLA – SerDes Logging Adapter

SLA – SerDes Logging Adapter

SerDes Logging & Replay
different SLA variants available
up to 4 video channels
up to 20 Gb/s link over SFP+
supports GMSL2, GMSL3 (Maxim/ADI) or FPD Link III & IV (Texas Instruments)
gPTP or PTP time sync.

Variants

SLA Product Brochure (PDF, 2 MB)

Useful information

Data Sheets
User Instructions Manuals
Tutorials

Download Center

Applications

SerDes data recording
Re-injection on a HiL
Validation of Vision Language Models (VLMs)

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For further information on our automotive products and services, kindly contact us with your specific inquiry and we’ll get back to you as soon as possible.

SLA-1C-GMSL

SerDes Logging & Replay
1 Channel
Coax
10 Gb/s link over SFP+
GMSL2 up to 6 Gb/s (Maxim/ADI)
gPTP or PTP time sync.

SLA-1C10-FPD4

SerDes Logging & Replay
1 Channel
Coax
10 Gb/s link over SFP+
FPD Link III & IV up to 6 Gb/s (Texas Instruments)
gPTP or PTP time sync.

SLA-1S-GMSL

SerDes Logging & Replay
1 Channel
STP (Shielded Twisted Pair)
10 Gb/s link over SFP+
GMSL2 up to 6 Gb/s (Maxim/ADI)
gPTP or PTP time sync.

SLA-4C-GMSL

SerDes Logging & Replay
4 Channel
Coax
30 Gb/s link over optical MPO
GMSL2 up to 6 Gb/s (Maxim/ADI)
gPTP or PTP time sync.

SLA-4C10-FPD

SerDes Logging & Replay
4 Channel
Coax
10 Gb/s link over SFP+
FPD Link III up to 4,15 Gb/s (Texas Instruments)
gPTP or PTP time sync.

SLA-4C20-GMSL3

SerDes Logging & Replay
4 Channel
Coax
20 Gb/s link over SFP+
GMSL2, GMSL3 up to 12 Gb/s (Maxim/ADI)
gPTP or PTP time sync.

SLA – DCDC – 30W

The galvanically isolated power supply for the SLA is specially designed for automotive test setups and prevents ground loops, especially when using coax signal lines.

Wide input voltage range.
Up to 30 W output power.
Two wake-up pins.

SLA EXTENSION BOX

An SLA Extension Box is used to record additional protocols. The adapter board is often used to record debug interfaces of an ECU or other interfaces parallel to the sensor data.

Many supported interface types, such as Ethernet RGMII (1Gbit/s), MIPI CSI-2.
High-precision time stamping including external synchronization by SLA.

HiL-Framework

Our software application allows you to unpack recorded sensor data live in your HiL system and finally send it to your ECU (re-injection).

Used in open-loop HiL environments as data injection.
Reinjection of recorded scenes stored in PCAP or MDF format.
High computing efficiency for the lowest possible hardware requirements for the computer.
Total application data rate up to 15 Gbit/s (3 Gbit/s for each SLA – could be higher or lower depending on the performance of the computer).
High accuracy time synchronization.
And more …

Decompression software

Highly optimized OpenCL-based decompression algorithm.

Uses GPU as well as multi-core and many-core CPU processing power.
PCAP file format.
Supports row-based compressed recorded data.
High performance due to massively parallel processing
Lossless JPEG-1.

MDF compression / decompression software

Part of the complete tool chain for validation systems.

Flexibility by compression and decompression algorithm.
MDF file format.
Lossless JPEG-1 and LZRW1-A.

These data have to be interpreted by many control units in the vehicle to enable autonomous driving later. Our SerDes Logging Adapter family (SLA family) supports you in recording the enormous variety of data in test vehicles and using it for various validation phases. As a member of the Automotive SerDes Alliance (ASA), we also promote the standardization of SerDes technology in the automotive market.

The challenge

As high-resolution cameras are increasingly used in vehicles, high data rates are generated on the signal path between sensors and control unit.

On the one hand, the difficulty lies in forwarding the data to the receiver control unit with low latency without disturbing normal operation. On the other hand, the data packets must be time-stamped at the same time, optionally compressed live, packaged and finally sent to a data logger.

The solution

Our SerDes Logging Adapter (Serializer/Deserializer Logging Adapter), SLA for short, ensures all these challenges. It serves as a data bridge between the sensors and the ECUs. In doing so, it manages the data

lossless and without noticeable delays to the control unit,
provides them with high-precision time stamps,
and passes the data on to a data logger.

… forwards the sensor data to the ECU for normal in-vehicle processing. At the same time, the SLA stamps the received data with a precise time stamp, packets the data and sends it to the data logger via one or more 10 Gb/s Ethernet ports (SFP+).

open-loop

Monitor how the system reacts in each scenario recorded in the past (reproducible validation scenarios). The SLA receives the recorded data packets via one or more 10Gb/s Ethernet ports. The data is then unpacked and decompressed while the original data stream is reconstructed packet by packet. The SLA sends the data stream to the control unit with exactly the same timing as the packets were recorded.

closed-loop

The SLA receives simulated data, unpacks it and uses it to generate a data stream that is sent to the control unit with minimal latency. The simulation computer usually evaluates the reaction of the control unit at the same time and adjusts the rendered data stream accordingly.

Validation of Vision Language Models (VLMs)

The SLA family plays a crucial role in the development and validation of the data required by a Vision Language Model (VLM) or Vision Language Action (VLA). The SLA acts as a data bridge between the sensor and the target hardware and provides the vision-language model with precisely synchronized, real sensor data directly from your system — the basis for explainable, robust, and scalable AI models (VLMs).

How your VLM benefits:

High-precision time-stamped sensor data as input for VLMs
Data acquisition for VLMs & VLAs
Logging of high video data rates
Open- and closed-loop HiL

SLA – SerDes Logging Adapter