The network security isolation card is a data‑security device that separates two different networks, ensuring that information transferred between them remains protected. The manual explains the purpose of the card and how it isolates internal and external network traffic.
Installation involves powering down the system, inserting the card into a PCI slot, tightening the mounting screw, and connecting the short and long network cables to the appropriate internal and external ports. The guide also describes how to select the active network via a switch, and provides troubleshooting tips for common issues such as cable connections and network switching problems. This manual is written in Chinese.
Use the network selection switch: set the red side for the external network or the green side for the internal network before operating the card.
Verify that all cables are properly connected, ensure the internal and external network plugs are inserted into the correct ports, and confirm the card’s network interfaces are linked to the network. If the problem persists, connect the cables directly to the network card to isolate the card as the cause.