ZyXEL Communications ZyXEL Dimension GS-4012F - Manual (Page 48)

GS-4012F/4024 User’s Guide
Chapter 3 Hardware Overview 47
Figure 15 Rear Panel: GS-4012F/4024
Figure 16 Read Panel: GS-4012F (DC Model)
3.2.1 Power Connector
Make sure you are using the correct power source as shown on the panel.
The GS-4012F DC unit requires DC power supply input of –48 VDC or -60 VDC, 1.2A Max.
To connect the power to the switch, insert the female end of power cord to the power
receptacle on the rear panel. Connect the other end of the supplied power cord to a power
outlet. Make sure that no objects obstruct the airflow of the fans.
3.2.2 External Backup Power Supply Connector
The backup power supply constantly monitors the status of the internal power supply. The
backup power supply automatically provides power to the switch in the event of a power
failure. Once the switch receives power from the backup power supply, it will not
automatically switch back to using the internal power supply even when the power is resumed.
3.3 Front Panel LEDs
The LEDs are located on the front panel. The following table describes the LEDs on the front
panel.
Table 2 Front Panel LEDs
LED COLOR STATUS DESCRIPTION
BPS Green Blinking The system is receiving power from the backup power supply.
On The backup power supply is connected and active.
Off The backup power supply is not ready or not active.
PWR Green On The system is turned on.
Off The system is off.
SYS Green Blinking The system is rebooting and performing self-diagnostic tests.
On The system is on and functioning properly.
Off The power is off or the system is not ready/malfunctioning.