ASA livestream converter

Interface Converter

Challenge:

From 01/10/2011 (Brake Tester Directive 2011), all new brake testers delivered in Germany must have a standardized data interface, the ASA livestream interface. The determined brake forces (and other measurement data) are made available to the test engineer via this data interface (RJ45, Ethernet) as part of the main inspection of passenger cars and trucks. The ASA livestream interface is mandatory for the main inspection.

The aim of this development was to cover all existing products of our customers (plate and roller brake testers) with one version of the ASA livestream converter without having to make any changes to the electronics/software of the device.

Solution:

For our customers, we developed an easy to use and compact plug & play solution to extend the existing product line.

An interface converter translates data from one interface to another, in this case an RS-485 interface (brake tester data bus) to an Ethernet interface (ASA livestream protocol).

In doing so, the interface converter performs three tasks:

  1. It converts the plug connection so that the device/bus connections with their plugs and sockets fit on both sides
  2. It provides the electrical connection for both interfaces, “input” and “output”
  3. It converts the data from one protocol to another

The technical solution is based on a Linux mini-computer (Raspberry Pi) with a newly developed HAT board. The HAT board is equipped with a UPS for safe shutdown of the computer, several status LEDs for the status indicators, ribbon cable connection for a control panel and two data bus connections (RS-232 and RS-485). The converter is connected to the brake tester via a plug-compatible data cable. An external 5V power supply is used to power the converter.

We're on vacation

22.12.2023 - 07.01.2024

Dear Sir or Madam,

we would like to thank you again this year
for your loyalty and trust!

Since we are on company vacation over the holidays, we would like to point out that no goods can be delivered during this time.

We will process incoming orders again from
January 8th, 2024.

The entire Cartesy team wishes you a Merry Christmas and a Happy New Year 2024!

Winter promotion

5% discount

on all products in the store!
Discount code: 5Winter23