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PoE considerations
The PoE and PoE+ power supplied by the switch is prioritized in ascending port
order: Ports 1–24 support PoE and PoE+ with a total power budget of 380W.
If the power requirements for the attached powered devices (PDs) exceed
the total power budget of the switch, the PD on the highest-numbered port
is disabled to make sure that the PDs connected to the higher-priority, lower-
numbered ports are supported first.
A PD listed as an 802.3at PoE powered device does not necessarily require
the maximum power limit of the specification. Many PDs require less power,
potentially allowing more PoE ports to be active simultaneously.
The following table shows the standard power ranges calculated with the
maximum cable length of 328 feet (100 meters).
Device
Standard
Class Description
Power
Class
Reserved by
the Device
0
PoE and PoE+
Default power (full)
0.44W
1
PoE and PoE+
Very low power
4.0W
2
PoE and PoE+
Low power
7.0W
3
PoE and PoE+
Mid power
15.4W
4
PoE+ only
High power
30.0W
If a device receives insufficient PoE power from the switch, consider using a
shorter cable.
© NETGEAR, Inc., NETGEAR and the NETGEAR Logo
January 2020
are trademarks of NETGEAR, Inc. Any non‑NETGEAR
trademarks are used for reference purposes only.
PoE Troubleshooting
Here are some tips for correcting PoE problems that might occur:
•
If the PoE Max LED is solid yellow, disconnect one or more PoE devices to
prevent PoE oversubscription.
•
For each powered device (PD) that is connected to the switch, the associated
PoE LED on the switch lights solid green. If the PoE LED lights solid yellow, a
PoE fault occurred and PoE halted because of one of the conditions listed in
the following table.
PoE Fault Condition
A PoE-related short circuit occurred on the port.
The PoE power demand of the PD exceeded
the maximum level that the switch permits. The
maximum level is 15.4 for a PoE connection or
Power
30W for a PoE+ connection
Delivered to
the Device
The PoE current on the port exceeded the
classification limit of the PD.
0.44W–12.95W
0.44W–3.84W
The PoE voltage of the port is outside the range
that the switch permits
3.84W–6.49W
6.49W–12.95W
Mount the switch in a rack
12.95W–25.5W
We recommend that you use the brackets and screws that came with the switch.
1. Attach the mounting brackets to the side of the switch.
2. Insert the screws through each bracket and into the bracket mounting holes
in the switch.
3. Tighten the screws with a No. 1 Phillips screwdriver to secure each bracket.
4. Align the mounting holes in the brackets with the holes in the rack, and insert
two pan-head screws with nylon washers through each bracket and into the
rack.
5. Tighten the screws with a No. 2 Phillips screwdriver to secure mounting
brackets to the rack.
Support
Thank you for purchasing this NETGEAR product. You can visit
https://www.netgear.com/support/
latest downloads and user manuals, and join our community. We recommend
that you use only official NETGEAR support resources.
Si ce produit est vendu au Canada, vous pouvez accéder à ce document en
français canadien à https://www.netgear.com/support/download/.
(If this product is sold in Canada, you can access this document in Canadian
French at https://www.netgear.com/support/download/.)
Possible Solution
IMPORTANT
For regulatory compliance information including the EU Declaration of
The problem is most likely with
Conformity, visit https://www.netgear.com/about/regulatory/.
the attached PD. Check the
condition of the PD, or restart
See the regulatory compliance document before connecting the power supply.
the PD by disconnecting and
Do not use this device outdoors. The PoE source is intended for intra building
reconnecting the PD.
connection only.
Specifications
Specification
Restart the switch to see if the
condition resolves itself.
Network interfaces
Power input
Max PoE budget
Dimensions
(W x D x H)
Weight
Operating temperature 32–113°F (0–45°C)
Operating humidity
Compliance
to register your product, get help, access the
Description
48 Gigabit Ethernet RJ-45 ports that support 1G, 100 M, and 10 M
24 PoE/PoE+ ports
100-240VAC, 8A max
380W
17.3 x 12.2 x 1.7 in. (440 x 310 x 43 mm)
10.1 lb (4.56 kg)
10%–90% relative humidity, noncondensing
FCC class A, CB, CE class A, VCCI class A, RCM class A, KC, BSMI
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