Lenovo RD120 manual Rear view

vInformation LED: When this LED is lit, it indicates that a noncritical event has occurred. An LED on the diagnostics panel is also lit to help isolate the error.

vSystem-error LED: When this LED is lit, it indicates that a system error has occurred. An LED on the diagnostics panel is also lit to help isolate the error.

vRelease latch: Slide this latch to the left to access the diagnostics panel, which is behind the operator information panel.

USB connectors: Connect a USB device, such as USB mouse, keyboard, or other USB device, to either of these connectors.

Video connector: Connect a monitor to this connector. The video connectors on the front and rear of the server can be used simultaneously.

Hard disk drive activity LED: Each hot-swap hard disk drive has an activity LED. When this LED is flashing, it indicates that the drive is in use.

Hard disk drive status LED: Each hot-swap hard disk drive has a status LED. When this LED is lit, it indicates that the drive has failed. When this LED is flashing slowly (one flash per second), it indicates that the drive is being rebuilt as part of a RAID configuration. When the LED is flashing rapidly (three flashes per second), it indicates that the controller is identifying the drive.

CD/DVD-eject button: Press this button to release a CD or DVD from the

CD-RW/DVD drive.

CD/DVD drive activity LED: When this LED is lit, it indicates that the CD-RW/DVD drive is in use.

Rack release latches: Press these latches to release the server from the rack.

Rear view

The following illustration shows the connectors and LEDs on the rear of the server.

Attention: In a dc power environment, see the documentation that comes with the dc power supply for information about the power-supply LEDs.

1	Power cord connector	11	Ethernet 2 connector
2	AC power LED	12	USB 2 connector
3	DC power LED	13	USB 1 connector
4	Power-supply filler panel	14	Video connector
5	Systems-management Ethernet	15	System error LED
	connector
6	Ethernet activity LEDs	16	System locator LED
7	Ethernet link LEDs	17	Power on LED
8	Ethernet connector 1	18	Serial connector
9	USB 4 connector	19	SAS connector

10ThinkServer RD120 Types 6444, 6445, 6446, and 6447: User Guide