ZyXEL Communications GS-4012F, User Manual

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GS-4012F User’s Guide
46 Chapter 3 Hardware Overview
Figure 13 Transceiver Removal Example
3.2 Rear Panel
The following figure shows the rear panel of the switch. The rear panel contains a connector
for backup power supply (BPS) and the power receptacle.
Figure 14 Rear Panel
3.2.1 Power Connector
Make sure you are using the correct power source as shown on the panel.
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
100~240VAC/1.5A 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.