ZyXEL Communications Dimension GS-3012, User Manual, Page: 44 / 259

GS-3012/GS-3012F User’s Guide
3-6 Hardware Connections
Figure 3-7 GS-3012F Rear Panel: AC Model
Figure 3-8 GS-3012F 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 AC power model, 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 an appropriate power outlet (see the appendix of
product specifications for details). Make sure that no objects obstruct the airflow of the fans (located on the side of
the unit).
The DC power model requires DC power supply input (see the appendix of product specifications for details). 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 switch supports external backup power supply (BPS).
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.
3.4 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.