Line card的意思

"Line card" is a term used in the telecommunications and networking industries to refer to a printed card or document that lists the available telephone or network connections that a company or service provider can offer. The line card typically includes information such as the type of service (e.g., voice, data, internet), the bandwidth or capacity of the connection, the pricing, and any additional features or services that are available.

In the context of networking equipment, a "line card" can also refer to a circuit board that is inserted into a chassis-based network switch or router. These line cards are designed to handle specific functions, such as routing, switching, or providing additional ports for network connections. Each line card may have its own processor, memory, and interface ports, and they can be configured and managed independently within the network device.

In both cases, the term "line card" is used to describe a means of expanding or customizing the capabilities of a telecommunications or networking system to meet the specific needs of a customer or application.