NEC NX7700i/5040H-32, TX7/i9610 Emergency System Shutdown with AC SW, AC-LINK Auto Control

Operation Procedure

3.3.Emergency System Shutdown with AC SW

The AC switch is provided for forced power off in the event that the system falls into a critical condition which needs to turn off the power immediately. Do not use this switch in normal operation.

The power to the main and expansion cabinets are turned off by turning off the relevant AC switches. See Figure 3-1 in 3.1.1 for the locations of the AC switches.

When a UPS is connected, perform the emergency system shutdown from the UPS. Refer to the UPS manual for the power-off procedure.

CAUTION

Data may be destroyed when the AC switch is operated.

CAUTION

Provide criteria for operating the AC switch and use the switch according to the criteria.

3.4.AC-LINK (Auto Control)

When connecting a UPS or a new AOC to the system, you need to decide whether it is controlled automatically or manually, and if you select automatic control, ask our maintenance personnel to enable automatic control.

SP command	AC link mode	Description
SG	On	AC LINK is enabled (it is
		disabled by default).

The SP console screen for confirming and executing AC LINK is shown below.

CAUTION

When an automatic control system such as the rack management system is installed, wait for more than two minutes after OS shutdown to perform AC power-off control.

*If the AC power-off control starts within two minutes after OS shutdown, an error will occur during system shutdown, or the system will not start normally next time.

855-900547-200 3-12