Amber
Solid
PD device is attached, but PSE can't
provide power to PD due to PD error
or power budget is not enough.
Off
PD device is not attached.
Rear Panel Description
The rear panel of the switch contains the following items:
AC power connector (100 to 240 VAC, 50 to 60 Hz)
Power cord retainer slot
SWITCH GND: grounding screw for attaching the terminal lug ring of the grounding
cable to the switch
Kensington-compatible security lock slot
Redundant Power Supply port
Figure 2 — DGS-1520-28MP rear panel
Side Panel Description
The left-hand panel of the switch has heat vents to dissipate heat. Do not block these
openings, and leave at least 15 cm of space at the rear and sides of the switch for proper
ventilation. Be reminded that without proper heat dissipation and air circulation, system
components might overheat, which could lead to system failure. Also the left- and right-
hand panels of the switch have four fans and rack-mounting screw holes.
Figure 3 — DGS-1520-28MP side panels
Switch Installation
This section will discuss the hardware installation guidelines that the user must follow in
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