---
myst:
  substitutions:
    emc_symbol: |
      ```{image} img/emc.png
      :alt: emc
      :width: 30px
      :align: center
      ```
    warning_symbol: |
      ```{image} img/warning.png
      :alt: emc
      :width: 30px
      :align: center
      ```
    onoff_symbol: |
      ```{image} img/onoff.png
      :alt: onoff
      :width: 30px
      :align: center
      ```
    dc_19v_symbol: |
      ```{image} img/dc_19v.png
      :alt: dc_19v
      :width: 50px
      :align: center
      ```
    dry_symbol: |
      ```{image} img/dry.png
      :alt: dry
      :width: 30px
      :align: center
      ```
    temperatures_symbol: |
      ```{image} img/temperatures.png
      :alt: dry
      :width: 30px
      :align: center
      ```
    manufacture_date_symbol: |
      ```{image} img/manufacture_date.png
      :alt: dry
      :width: 30px
      :align: center
      ```
    ce_symbol: |
      ```{image} img/ce.png
      :alt: dry
      :width: 30px
      :align: center
      ```
    weee2_symbol: |
      ```{image} img/weee2.png
      :alt: weee
      :width: 30px
      :align: center
      ```
---

(references)=
# REFERENCES


(references/legend)=
## Legend of symbols

:::{list-table}
:widths: 5 20
:align: left

* - **SYMBOL**
  - **DESCRIPTION**
* - {{emc_symbol}}
  - Radiation/electromagnetic interference 
* - {{warning_symbol}}   
  - CAUTION! Consult the instruction manual before use
* - {{onoff_symbol}}
  - ON/OFF switch
* - {{dc_19v_symbol}}
  - 19 VDC power supply connector
* - {{dry_symbol}} 
  - Keep in a dry place   
* - {{temperatures_symbol}} 
  - Range of allowable temperatures of storing and transport. 
* - {{manufacture_date_symbol}}
  - Date of manufacture.
* - {{ce_symbol}} 
  - CE mark confirming the completion of conformity assessment of the product.
* - {{weee2_symbol}}  
  - WEEE -- electronic device, should be disposed of according to existing regulations.
:::



(references/warranty)=
## Warranty Terms and Conditions

Warranty terms for the us4us® products are available [here](https://us4us.eu/assets/us4us-Warranty-RMA-2020-v1.pdf).

General terms and conditions of sale are available [here](https://us4us.eu/assets/us4us-GST-2020-v1.pdf).

(references/version-history)=
## Version history

:::{list-table}
:widths: 15 10 30
:align: left

* - **Ver. / Date**
  - **Author**
  - **Change description**
* - 0.7 / 25 NOV 2024
  - BW
  - 
    - sections numbering changed, 
    - model RL-2024-PCIe added, 
    - most of the sections updated
* - 0.6 / 18 DEC 2023
  - BW
  - 
    - sections numbering changed, 
    - model R-2023 added, 
    - basic composition updated, 
    - Section *7.3 Detailed specification* updated
* - 0.5 / 02 MAR 2023
  - BW
  - 
    - Section *8.3 Detailed specification* updated,
    - Section *9 Current limitations* updated
* - 0.4 / 05 DEC 2021
  - BW
  - 
    - Section *5 System setup* updated, 
    - Section *7.4 Other conditions and recommendation* extended

:::