Sun Microsystems Cobalt LX50, Руководство пользователя

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Chapter 2: Installing the Server in a Rack
2-32 User Guide—Sun Cobalt LX50 Server
If you choose to develop your own RJ-45-to-DB9 adapter, see Table 9 for the appropriate pinout configuration.
USB 3 and USB 4 Connectors
The USB 3 and USB 4 connectors provide USB functionality. All ports function with identical capabilities and with
the same bandwidth. The industry-standard USB v1.1 specification defines the external connectors.
PS/2 Keyboard/Mouse Connector
A single PS/2 port located on the back panel is provided to support a standard keyboard or mouse. A PS/2 Y-cable
adapter, included with the Sun Cobalt LX50 server, allows simultaneous use of the PS/2 keyboard and mouse. Such
cable adapters are also commonly available at most computer stores.
SCSI Connector
The Sun Cobalt LX50 server includes an onboard Adaptec dual channel Ultra-160 SCSI controller capable of
controlling up to three internally mounted SCSI drives and 15 external SCSI drives at rates up to 160 MB/s. The
onboard SCSI controller is connected to a SCSI backplane board inside the server using a 68-pin SCSI cable. The
SCSI backplane provides connections for up to three internally mounted SCA LVDS SCSI drives with standard
80-pin SCA connectors. Channel B is used exclusively by internal drives while channel A is used for connecting to
external SCSI devices by means of a rear panel high-density SCSI connector. The connector supports a standard high-
density 68-pin connector. Use only shielded Ultra-160 LVDS rated cables for connection to external SCSI drives.
Video Connector
The Sun Cobalt LX50 server provides an ATI Rage XL PCI graphics accelerator, along with 8 MB of video SDRAM
and support circuitry for an embedded SVGA video subsystem. The SVGA subsystem supports a variety of modes,
up to 1600 x 1200 resolution in 8/16/24/32 bpp modes under 2D, and up to 1024 x 768 resolution in 8/16/24/32 bpp
modes under 3D. It also supports both CRT and LCD monitors with up to 100 Hz vertical refresh rates. All of these
capabilities depend on software support.
The server provides a standard 15-pin VGA connector and supports disabling of the on-board video through the BIOS
Setup menu or when a plug-in video card is installed in any of the PCI slots.
✍
Note:
• Only the back Serial 2 port has modem support
• Sun Microsystems provides an optional RJ-45 to DB9 Serial Adapter Kit (order number
X5026A) that can be purchased that contains all three RJ-45-to-DB9 adapters:
• DSR Peripherals cable (for rear panel data set ready (DSR) peripherals
• DCD Modem cable (for rear panel data carrier detect (DCD) modem)
• Front EMP cable (for front panel Emergency Management Port)
✍
Note: The USB ports are disabled until Linux is booted and the USB drivers are installed. A
PS/2 keyboard is required if a keyboard is necessary for initial bootup and configuration.
✍
Note: The USB ports are disabled until Linux is booted and the USB drivers are installed. A
PS/2 keyboard is required if a keyboard is necessary for initial bootup and configuration.