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Users Manual Part 1

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Chapter 1 Introducing the Zyxel Device
PX7511-B0 User’s Guide
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1.5 Hardware
This section describes the front and rear panels for each model. If your model is not shown here, refer to
the Zyxel Device’s Quick Start Guides to see the product drawings and how to make the hardware
connections.
1.5.1 Front Panel
The LED indicators are located on the front panel.
Figure 4 LED Indicators
None of the LEDs are on if the Zyxel Device is not receiving power.
Table 2 LED Descriptions
LED COLOR STATUS DESCRIPTION
UPS Green On The main power is off, and the Zyxel Device is receiving power from the
connected UPS (battery backup).
Blinking The Zyxel Device is not receiving backup power properly. The connected
UPS may have low voltage output.
Off The Zyxel Device is not receiving power from the connected UPS (battery
backup).