--- title: "Guide on the operation of LEDs: Prism Solar S" description: This guide explains all the LED signals that the user might encounter while using Prism Solar S. url: "https://silla.industries/en/docs/prism-solar-s-howto-funzionamento-dei-led/" updated: "2025-09-01" category: Prism / How to... tags: - How to... - Led - Prism - Solar S --- # Guide on the operation of LEDs: Prism Solar S ## Led signals This guide explains all the LED signals that the user might encounter while using Prism Solar S. --- Status:**In office** Prism is delivering power to the car. The colors of the LEDs will vary yellow and green in proportion to the amount of solar/network energy absorbed by the car. **100% Net** ![Prism Solar S normal charge](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Carica-normale-450.gif) **100% Solar** ![Prism Solar S solar charging](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Carica_solare-450.gif) --- Status: **Stand By** Prism results disconnected from the car. Plug in the car to start charging. ![Prism Solar S Stand By](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Stand_By-450.gif) --- Status: ****Pause**** Prism is not delivering power to the car, the reasons may be: - Pause mode has been entered - Prism is waiting for power ![Prism Solar S Pause](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Pausa-450.gif) --- Status: **Authorization request** Prism is waiting for authentication from the user in order to initiate charging. Approach the key fob or RFID card to enable charging. **Note**: Charging can also be enabled from the local Dashboard and My Silla Cloud. ![Prism Solar S authentication](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Autenticazione-450.gif) --- Status: **Update in progress** Prism is undergoing a Software update. Do not turn off or disconnect Prism. ![Prism Solar S upgrade](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Aggiornamento-450.gif) --- Status: ****Lack of internet network**** Prism does not appear to be connected to the Internet, please try again. ![Prism Solar S lack of internet network](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_mancanza_rete_internet-450.gif) --- Status: ****Sensor connection error**** Verify that the connection of Smart Meter to Prism is correct. **Note**: Error present only in the three-phase version. ![Prism Solar S sensor error](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Errore-sensore-450.gif) --- Status: ****Block Error**** ****connector**** Prism failed to lock the charging connector. Remove and reinsert the cable to Prism. ![](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Errore-interlock-1080x1080-1.png) --- Status: ****Error**** In any error condition, contact service for troubleshooting. ![Prism Solar S generic error](https://silla.industries/wp-content/uploads/2023/08/IMG-Prism_Solar_S_Errore_generico-450.gif) --- ## Led signals - Authentication method ##### Recharge without authentication Charging without authentication does not require any special attention from the user, thus simplifying access to charging. Simply plug Prism's cable into the car, and charging will begin automatically. ![RFID Prism Solar S graphics connector at rest](https://silla.industries/wp-content/uploads/2023/08/IMG-RFID-Free_Prism_Solar_S_riposo_1-1080x1080-1-1024x1024.png) ![RFID Prism Solar S active graphics](https://silla.industries/wp-content/uploads/2023/08/IMG-RFID-Free_Prism_Solar_S_attivo_2-1080x1080-1-1024x1024.png) ##### Recharging with authentication Charging with authentication requires the use of key fobs or RFID cards to allow a user to charge. In order to recharge, it will be sufficient to plug in the car, bring the key fob or RFID card close to the indicated area and wait for the beep. When this is done, charging will begin immediately. ![Touch change mode Prism Solar S graphics connected](https://silla.industries/wp-content/uploads/2023/08/IMG-Touch_cambio_modalita_Prism_Solar_S_1-1080x1080-1-1024x1024.png) ![Touch change mode Prism Solar S graphics](https://silla.industries/wp-content/uploads/2023/08/IMG-RFID_Prism_Solar_S_2-1080x1080-1-1024x1024.png) ![RFID Prism Solar S graphics card](https://silla.industries/wp-content/uploads/2023/08/IMG-RFID_Prism_Solar_S_3-1080x1080-1-1024x1024.png) ![RFID Prism Solar S graphics connector inserted](https://silla.industries/wp-content/uploads/2023/08/IMG-RFID_Prism_Solar_S_4-1080x1080-1-1024x1024.png)