Users connect to a terminal server remotely, accessing applications and data stored on a host computer or server. A terminal may be connected to its host computer either by a direct cable connection, via a modem, or via a terminal server. Additional serial cards may be purchased. A terminal server connects devices with a serial port to a local area network (LAN). Terminal servers acquired their name because they were originally used for. A serial console (also known as a console server or terminal server) is a device that allows admins to manage critical network infrastructure like servers, routers, switches, and power distribution units (PDUs) without needing to log in to each piece of equipment individually.
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