DGS-1520 Series Gigabit Ethernet Smart Managed Switch Hardware Installation Guide
8
This following table lists the front panel components unique to the
DGS-1520-52MP
:
Port
Description
Redundant Power Supply
The RPS port can be used to connect an optional external load-sharing RPS to the
Switch. When the internal power fails, the external RPS will immediately supply
power to the Switch automatically.
Rear Panel LED Indicators
The rear panel LED indicators provide valuable information in a variety of ways like their color, blinking times, and
location.
Figure 2-13 DGS-1520-28/52 Rear Panel LED Indicators
The rear panel LED indicators (
per device
) are described in the following table:
LED
Color
Status
Description
Link/Act
Green
On (Solid)
Active connection at 1 Gbps through the MGMT port
On (Blinking)
Data transmitted and received through the MGMT port
Amber
On (Solid)
Active connection at 10/100 Mbps through the MGMT
port
On (Blinking)
Data transmitted and received through the MGMT port
Off
Off
Inactive connection or no link present
PD
Green
On (Solid)
Receiving DC power from PoH PSE connected to the
MGMT port
Amber
On (Solid)
Normal MGMT connection active (no PoH supplied).
When a PSE is connected, this light indicates that a
power supply failure has occurred.
Off
Off
No PoH PSE or MGMT connection is present
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