Sun Microsystems 220R service manual Other RMA Storage Device X-Options, Keyboard and Mouse Port

806-1057, provides installation instructions, power requirements, and performance data for the 18-Gbyte 10K rpm hard drive.

C.1.7 Other RMA Storage Device X-Options

The system unit supports other removable media assembly (RMA) storage device X-options that you can install in the system unit in lieu of the CD-ROM drive. These storage device X-options include the 12-24-Gbyte 4mm DDS3 tape drive. For a listing of all X-options, refer to the product guide.

C.1.8 Keyboard and Mouse Port, and Parallel Port

The keyboard and mouse port, as well as the parallel port interfaces are managed by the SuperIO component. For a brief description of the SuperIO, see Section C.1.13 “SuperIO” on page 274.

C.1.8.1 Keyboard and Mouse Port

The keyboard and mouse are connected to an 8-pin DIN connector, located on the main logic board, and to two serial ports on the SuperIO component. Each serial port on the SuperIO ASIC provides 16-byte FIFO buffering. Data is asynchronously exchanged with the keyboard and mouse at 1200 baud. Keyboard current is limited to 700 milliamperes (mA) by a resettable fuse. Only the Sun Type-5 keyboard is supported.

Functional Description 261