Sun Microsystems Cobalt LX50, User Manual

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Connecting the Cables
User Guide—Sun Cobalt LX50 Server 2-27
Connecting the Cables
The Sun Cobalt LX50 server has a number of connectors. Some are on the front panel; others are located on the rear
panel. This section summarizes the usage of each connector.
Front Panel Connectors
To access the front panel connectors when a front bezel is installed, grasp the bezel on the right side at the finger hole
and gently pull it towards you, unhinging it at the left until it unsnaps from the chassis. Figure 28 shows the front of
the server with the bezel removed.
Figure 28. Front Panel (bezel removed)
There are three connectors on the right side of the front panel:
• Front RJ-45 Serial 2 connector (top connector, ttyS1)
• USB 1 connector (middle connector)
• USB 2 connector (bottom connector)
The BIOS is set by default to redirect BIOS, bootup, and Linux Loader (LILO) messages to the serial port. The
default communications settings for the serial console ports on the server are:
• 9600 bps
• 8 data bits
• 1 stop bit
• No parity
• No flow control
Front RJ-45 Serial 2 Connector
The Sun Cobalt LX50 server provides two common external RJ-45 serial ports, one located on the back of the system
and the other located on the front panel.
The use of RJ-45 connectors for the serial interface is widely becoming a standard for use in the high-density server
market. The intended usage model for the RJ-45 serial connector on the back of the system is for use as an interface to
a serial port concentrator allowing for remote access to the server’s Emergency Management Port (EMP). The serial
connector on the front panel (ttyS1) can be used as a direct connect to the EMP, allowing for PC-to-PC serial
communications to perform diagnostics on a server mounted in a rack environment.
RJ-45 Serial 2
USB1
USB2