Qnap TS-131 [57/75] U 3u turbo nas ts 853u rp ts 1253u rp ts 1279u rp ts ec1279u rp ts 1679u rp and ts ec1679u rp only

3. Insert a new power supply unit and push it to the end.

4. Turn on the NAS.

Warning: The NAS supports replacing the redundant power supply unit without

turning off the server when redundant power supply mode is enabled. However, users are

strongly recommended to turn OFF the NAS before replacing the power supply unit to

reduce the risk of electric shock.

A second power supply unit can be installed on a single power (SP) rackmount NAS model

to upgrade the SP model to redundant power (RP) model.

10.3 2U/3U Turbo NAS (TS-853U-RP, TS-1253U-RP, TS-1279U-RP,

TS-EC1279U-RP, TS-1679U-RP, and TS-EC1679U-RP only)

Note: The following instructions should only be performed by an authorized and trained

technician.

To replace a failed power supply unit on the TS-1279U-RP, TS-EC1279U-RP, TS-1679U-RP

or TS-EC1679U-RP Turbo NAS, follow the steps below.

1. Turn off the NAS.

2. Hold the black handler and press and hold the green button firmly.