ZyXEL Communications GS-3012 - Manual (Page 39)

Dimension GS-3012 Gigabit Ethernet Switch
Hardware Connections 3-5
3.3 Rear Panel
The following figure shows the rear panel of the GS-3012. The rear panel contains the ventilation holes, a
connector for external backup power supply (BPS) and the power receptacle.
Figure 3-6 GS-3012 Rear Panel: AC Model
Figure 3-7 GS-3012 Rear Panel: DC Model
3.3.1 Power Connector
Make sure you are using the correct power source as shown on the panel.
To connect the power to the GS-3012 AC unit, 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 100~240VAC/1.5A power outlet. Make sure that
no objects obstruct the airflow of the fans (located on the side of the unit).
The GS-3012 DC unit requires DC power supply input of –48 VDC to -60 VDC, 1.84A Max. To connect the power
to the unit, insert the one end of the supplied power cord to the power receptacle on the rear panel and the other end
to a power outlet.
3.3.2 External Backup Power Supply Connector
The GS-3012 supports external backup power supply. Connect to the backup power supply.
The backup power supply constantly monitors the status of the internal power supply. The backup power supply
automatically provides power into the switch in the event of a power failure. Once the GS-3012 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.
3.4 Front Panel LEDs
After you connect the power to the switch, view the LEDs to ensure proper functioning of the switch and as an aid
in troubleshooting.