| 摘要 |
A KVM switch of universal input and programmable USB hub includes a main control unit (MCU) chip and a switching control method are disclosed. The KVM switch has a MCU circuit for controlling functions of the KVM switch, complete reports of console I/O devices, reading and corresponding transmissions of descriptors; a console device interface chip connected to the MCU; a console port, connected to the console device interface chip; a computer interface chip, connected to the MCU; a re-assignment USB hub chip, connected to the computer interface chip; and a computer port, connected to the re-assignment USB hub chip. Console USB I/O interfaces become dynamic and universal, such that the console I/O devices connected to the control port correspond to the computer port to provide full compatibility, and the console ports can be connected to various console I/O devices without any limitation of device types. |
