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Power supply of IE4000 needed?

Josh F
Level 1
Level 1

Hi Guys, 

 

I have some queries in relation to the Cisco IE 4000 switch. 

 

At the moment we are ordering the following units. 

IE-4000 - 4GC4GP4G-E Switches. 

Along with the PWR-IE170W- PC-DC= power supply. 

 

 

Ie400Spec.png

 

These units are being deployed underground. 

My question is this. 

The power supplies function seems to be to take between DC 12-54 V and convert it to 54VDC/3.15 Amps. Is it possible that if the electricians can supply the switch directly with the 54VDC, that we could simply not need the power supply? This would be a savings of about $1300 a cabinet? 

 

Do these power supplies provide more than just converting  the input to the required output? Do they do any power smoothing or any other functions i might be missing? 

We do require the full POE budget as it is foreseeable that cameras and Ap's will be utilising these switches at some point? 

I also have a question about the current setup , since it's been installed. 

We have both power connections going from the switch A & B , to the same powersupply.

Is this the correct setup ? or is it more designed that the A\B switch connections are to be fed from a completely separate power supply \circuit? 
**See Photo**

IE4000 Powersupply.png

 

 

 

Thanks for reading

Josh

 

 

 

 

 

1 Reply 1

estefano.aguiar
Level 1
Level 1

Hi, John.

Reading the datasheet I checked that it is necessary to connect only one of the power connectors to the IE4000.

 

The second connector is for a second power source.

 

I'm working with the same set as you.

 

power_ie4000.png

 

Regards

 

Estéfano Aguiar