Lenovo ThinkServer TD200x - Manual (Page 49)

SAS backplane connectors
The following illustration shows the connectors on the SAS backplane.
1 Hard disk drive connectors
2 Power connector
3 Signal connector
4 Configuration connector
Power-supply LEDs
The following illustration shows the power-supply LEDs on the rear of the server.
For more information about solving power-supply problems, see the Hardware
Maintenance Manual.
1 ac power LED
2 dc power LED
3 Power error LED
Chapter 4. Server controls, LEDs, and power 33