IBM eServer xSeries 135, User Reference Manual

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Chapter 5. Installing options
59
USB-port connectors
Each USB port has an external connector on the rear of the server for attaching USB
compatible devices.
The following table shows the pin-number assignments for the USB-port connectors
on the rear of your server.
Console ports
There are two console ports on the rear of your server labeled In and Out. These ports
are used to create a console communications chain between servers and a console
(monitor, mouse, and keyboard). The xSeries 135 server does not support console
communications chains.
Connect a C2T device breakout cable to the Console out connector of the server; then,
connect your monitor, keyboard, and pointing device to the device breakout cable.
C2T device breakout cable
A keyboard, monitor, and mouse or pointing device are connected to your server
through the C2T device breakout cable. The keyboard and mouse cables have icons of
a keyboard and a mouse on their respective cable connectors for easy identification.
Keyboard connector
There is one keyboard connector on the end of the C2T device breakout cable. This
connector is identified by the keyboard icon.
Note: If you attach a standard (non-USB) keyboard to the keyboard connector, the
USB ports and devices will be disabled during the power-on self-test (POST).
Table 6. USB-port connector pin-number assignments
Pin Signal
1 VCC
2 -Data
3 +Data
4 Ground