Lenovo ThinkSystem SR550 Maintenance Manual page 28

Figure 10. Front I/O assembly for server models with twelve 3.5-inch-drive bays
Table 6. Components on the front I/O assembly
Callout
XClarity Controller USB connector
1
Power button with power status LED
3
System ID button with ID LED
5
XClarity Controller USB connector
1
Depending on the setting, this connector supports USB 2.0 function, XClarity Controller management
function, or both.
• If the connector is set for USB 2.0 function, you can attach a device that requires a USB 2.0 connection,
such as a keyboard, a mouse, or a USB storage device.
• If the connector is set for XClarity Controller management function, you can attach a mobile device
installed with the application to run XClarity Controller event logs.
• If the connector is set to have both functions, you can press the ID button for three seconds to switch
between the two functions.
2 USB 3.0 connector
Attach a USB-compatible device, such as a keyboard, USB mouse, or USB storage device.
3 Power button with power status LED
You can press the power button to turn on the server when you finish setting up the server. You also can hold
the power button for several seconds to turn off the server if you cannot turn off the server from the operating
system. The power status LED helps you to determine the current power status.
Status Color
Solid on Green
Slow blinking Green
(about one flash
per second)
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Description
The server is on and running.
The server is off and is ready to be powered on (standby state).
Callout
USB 3.0 connector
2
Network activity LED
4
System error LED
6