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The time now is 28.04.2024 - 13:54

SKFREE Forum Index » SKFree Network » Troubleshooting

Switch s napajanim 48V

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airbilly
Post subject: Switch s napajanim 48V  PostPosted: 16.02.2011 - 17:16 #88552
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Joined: Mar 13, 2005
Posts: 1867
Location: Nitra
Existuje idealne desktopovy switch, ktory sa da napajat 48V ? Ideme pridat nejaky licencovany spoj alebo 24Ghz a kvoli tomu tam musi ist 48V.
Edit, nasiel som toto http://www.pentask.sk/tp-link-tl-sf1008 ... d6718.html
 
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xtome1
Post subject: RE: Switch s napajanim 48V  PostPosted: 16.02.2011 - 18:21 #88553
Basic


Joined: Jan 23, 2011
Posts: 20
da sa pouzit spinany stabilizator LM-2575T http://www.alldatasheet.com/datasheet-p ... 2575T.html s akym kolvek 12v switchom
 
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xtome1
Post subject: RE: Switch s napajanim 48V  PostPosted: 16.02.2011 - 18:30 #88555
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Joined: Jan 23, 2011
Posts: 20
len treba spravit zapojenie tzv. "Under voltage lockout" cize zapojenie so zenerovu diodou inak sa stáva ze pri mikrovypadkoch elektriky nenabehne switch
 
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andreas4all
Post subject: RE: Switch s napajanim 48V  PostPosted: 16.02.2011 - 18:31 #88556
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Joined: Dec 09, 2004
Posts: 2539
Location: L.A.
dedinka pri PD
obrat sa na proficomms. Upravuju edgecore switch na 48V a nestracas zaruku.
 
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Shortky
Post subject: Switch s napajanim 48V  PostPosted: 16.02.2011 - 18:32 #88557
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Joined: Mar 07, 2008
Posts: 94
airbilly wrote: ›Existuje idealne desktopovy switch, ktory sa da napajat 48V ? Ideme pridat nejaky licencovany spoj alebo 24Ghz a kvoli tomu tam musi ist 48V.
Edit, nasiel som toto http://www.pentask.sk/tp-link-tl-sf1008 ... d6718.html


airbilly, konkretne tento kus mam nasadeny. Ak sa nemylim, napajam cez neho UBNT vec a prostrednictvom TP-LINK prevodnikov (5/12 V) sa daju napajat aj ine veci. Overene. Ma to takmer neobmedzene moznosti. Od nasadenia nebol najmensi problem.
4 porty su PoE, 4 su standardne.
Ak su nejake otazky, mozes pisat.
 
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airbilly
Post subject: Switch s napajanim 48V  PostPosted: 16.02.2011 - 19:10 #88558
Guru


Joined: Mar 13, 2005
Posts: 1867
Location: Nitra
Shortky wrote: ›
airbilly wrote: ›Existuje idealne desktopovy switch, ktory sa da napajat 48V ? Ideme pridat nejaky licencovany spoj alebo 24Ghz a kvoli tomu tam musi ist 48V.
Edit, nasiel som toto http://www.pentask.sk/tp-link-tl-sf1008 ... d6718.html


airbilly, konkretne tento kus mam nasadeny. Ak sa nemylim, napajam cez neho UBNT vec a prostrednictvom TP-LINK prevodnikov (5/12 V) sa daju napajat aj ine veci. Overene. Ma to takmer neobmedzene moznosti. Od nasadenia nebol najmensi problem.
4 porty su PoE, 4 su standardne.
Ak su nejake otazky, mozes pisat.

Daj mi link na ten prevodnik, dik.
 
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Shortky
Post subject: Switch s napajanim 48V  PostPosted: 16.02.2011 - 19:30 #88559
Basic


Joined: Mar 07, 2008
Posts: 94
airbilly wrote: ›Daj mi link na ten prevodnik, dik.


Nech sa paci, KAMARAT.
http://www.i4wifi.cz/?cls=stoitem&stiid=1819
 
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airbilly
Post subject: Switch s napajanim 48V  PostPosted: 16.02.2011 - 19:47 #88560
Guru


Joined: Mar 13, 2005
Posts: 1867
Location: Nitra
Shortky wrote: ›
airbilly wrote: ›Daj mi link na ten prevodnik, dik.


Nech sa paci, KAMARAT.
http://www.i4wifi.cz/?cls=stoitem&stiid=1819

Nemas skusenost kolko zariadeni pojde cez tu jednu sadu ? Respektive aky prud ? Lebo za tu cenu je to super dc/dc zdroj
 
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