> For the complete documentation index, see [llms.txt](https://docs.wiclax.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wiclax.com/utiliser-wiclax/acquisition-de-donnees-de-chronometrage/les-differents-systemes/j-chip.md).
# J-Chip
J-Chip est une marque japonaise de matériel de chronométrage RFID actif.\
Site officiel :
La connexion avec le matériel J-Chip s'établit en TCP-IP. L'adresse IP et le port à utiliser pour communiquer avec la box sont ceux renseignés dans l'utilitaire Control Panel, dans l'onglet Network.
{% hint style="info" %}
Début 2019, J-Chip a livré une mise à jour de son firmware permettant d'envoyer à la fois l'heure et la date pour une lecture de transpondeur. Ce n'était pas le cas dans les versions antérieures. Nous recommandons fortement l'utilisation du dernier firmware (version 2.02.0 et suivante) et l'activation du 'mode Date' depuis le Control Panel. Dans le cas contraire, sur les épreuves se déroulant sur plusieurs jours, la bonne prise en compte de la date de lecture peut s'avérer problématique.\
\
{% endhint %}
---
# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
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{% endhint %}
---
# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.
## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:
```
GET https://docs.wiclax.com/utiliser-wiclax/acquisition-de-donnees-de-chronometrage/les-differents-systemes/j-chip.md?ask=