NETGEAR GS305PP 4xGE PoE - Инструкция по эксплуатации - Страница 2

NETGEAR, Inc. 

350 East Plumeria Drive 

San Jose, CA 95134, USA

NETGEAR INTERNATIONAL LTD

Floor 1, Building 3, 

University Technology Centre 

Curraheen Road, Cork, 

T12EF21, Ireland

© NETGEAR, Inc., NETGEAR and the NETGEAR Logo 

are trademarks of NETGEAR, Inc. Any non‑NETGEAR 

trademarks are used for reference purposes only.

Mount the switch on a wall

We recommend that you use the wall-mount screws that came with the switch. 

1.  Locate the two mounting holes on the bottom panel of the switch.
2.  Mark and drill two mounting holes in the wall where you want to mount the 

switch.
The two mounting holes must be 1.53 in. (38.9 mm) apart, center-to-center.

3.  Insert the supplied anchors into the wall and tighten the screws with a No. 2 

Phillips screwdriver.
Leave about 0.125 in. (4 mm) of each screw protruding from the wall so that 
you can insert the screws into the holes on the bottom panel.

Note: 

GS305PP screws are 4.2 mm in diameter, 25 mm in length.

Support

Thank you for purchasing this NETGEAR product. You can visit  

https://www.netgear.com/support/

 to register your product, get help, access the 

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/

.)  

For regulatory compliance information including the EU Declaration of 
Conformity, visit 

https://www.netgear.com/about/regulatory/

.

See the regulatory compliance document before connecting the power supply.
Do not use this device outdoors. The PoE source is intended for intra building 
connection only.

PoE considerations

The PoE and PoE+ power supplied by the switch is prioritized in ascending port 
order (from port 1 to port 4), with a total power budget of 55.5 watts for the 
GS305P, and 83W for the GS305PP switch. 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 that 

are connected to the higher-priority, lower-numbered ports are supported first.

Just because a PD is listed as an 802.3at PoE powered device does not 

necessarily mean that it requires the maximum power limit of the specification. 

Many PDs require less power, potentially allowing all four PoE ports to be active 
simultaneously. 

You can override the detected device class and specify the power allocation 
for the device connected to each port. The following table shows the standard 
power ranges with no overrides applied, and calculated with the maximum cable 
length of 328 feet (100 meters).

Device 
Class

Standard

Class Description

Power 
Reserved by 
the Device

Power 
Delivered to 
the Device

0

PoE and PoE+

Default power (full)

15.4W

0.44W–12.95W

1

PoE and PoE+

Very low power

4.0W

0.44W–3.84W

2

PoE and PoE+

Low power

7.0W

3.84W–6.49W

3

PoE and PoE+

Mid power

15.4W

6.49W–12.95W

4

PoE+ only

High power

30.0W

12.95W–25.5W

If a device receives insufficient PoE power from the switch, consider attaching a 

shorter cable.

PoE Troubleshooting

Here are some tips for correcting PoE problems that might occur:

•  If the PoE Max LED is solid amber, disconnect one or more PoE devices to 

prevent PoE oversubscription. Start by disconnecting the device from the 
highest-numbered port.

•  For each powered device (PD) that is connected to the switch, the associated 

right port LED on the switch lights solid green. If the right port LED lights 
solid amber, a PoE fault occurred and PoE halted because of one of the 
conditions listed in the following table.

PoE Fault Condition

Possible Solution

A PoE-related short circuit occurred on the port.

The problem is most likely with 
the attached PD. Check the 
condition of the PD or restart 
the PD by disconnecting and 
reconnecting the PD.

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 
30W for a PoE+ connection

The PoE current on the port exceeded the 

classification limit of the PD.

The PoE voltage of the port is outside the range 
that the switch permits

Restart the switch to see if the 
condition resolves itself.

December 2019