To use this NVISION 8000 SWB 16 - Output Card, first make sure your NV8256 - Plus router is powered off. Then carefully insert the card into the appropriate slot in the router. Power on the router and it should recognize the card. When handling the card, avoid touching the electronic components with your bare hands to prevent static damage. For maintenance, keep the card in a clean and dry environment. Periodically check for any loose connections or signs of wear. If you encounter any problems, refer to the router's manual or contact customer support.