Power connector, External backup power supply connector, 3 rear panel – ZyXEL Communications ZyXEL Dimension GS-3012F User Manual
Page 43: 4 front panel leds, 1 power connector, 2 external backup power supply connector

GS-3012F User’s Guide
Hardware Connections
3-5
3.3 Rear Panel
The following figure shows the rear panel of the GS-3012F. The rear panel contains the ventilation holes, a
connector for external backup power supply (BPS), the power receptacle and the power switch (for DC model).
Figure 3-6 GS-3012F Rear Panel: AC Model
Figure 3-7 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 GS-3012F 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-3012F DC unit requires DC power supply input of –48 VDC to -60 VDC, 1.2A 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 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.