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Jecksons Ben
12/14/11 01:36
Modified:
  12/14/11 01:39

Read: 1266 times
Makassar
Indonesia


 
#185084 - DEJA VU.....CAT-5 ( R(J) - 45) )
Hai all

According to the spec.,that the Cat-5 cable POE able to work at 0.27 A,48 VDC,13 WATT max.

http://en.wikipedia.org/wiki/Category_5_cable

Simple POE able to built with only few components.

So with HUB,we could built distributed Power Supply from 1 Power Supply(i.e: 1 master to 3 anothers slaves)
in this case like this HUB...

http://en.wikipedia.org/wiki/Ethernet_hub

Without needed anothers AC to DC converter(adaptors) to each distibuted slaves.

================================================================================================

What about when we needed more? like more slaves or more powers distribution?

Since,We have 2 pairs unused cables.Then we have 2 groups (0.27 A,48 VDC,13 WATT max) with 1 ground,Of course.

We could separated that with different Voltages when the kits needed different kinds of PS voltages(means group).

Also,we could combined that 2 groups (0.27 A,48 VDC,13 WATT max.) with 1 ground became "0.54 A,48 VDC,26 WATT max" with trick of kits components PS.


Then at 2009,the spec. of CAT-5 production became 25,5 Watt and more V and I for POE(but seems Indonesia lost that train or that train will never come because "you know how in economics").

Am I False above? Did someone already did that? Links?

Thank you
Jeckson S Ben

NB: Of course that above not the real world but theory,So that reduced little bit and need failure protection.

List of 33 messages in thread
TopicAuthorDate
DEJA VU.....CAT-5 ( R(J) - 45) )      JecksonS Ben      12/14/11 01:36      
   PoE versus PoE+      Kai Klaas      12/14/11 10:40      
      poe+ didn't arrived yet.      JecksonS Ben      12/15/11 01:01      
   So what . . .        Michael Karas      12/14/11 11:21      
      Good info      JecksonS Ben      12/15/11 01:27      
         Length irrelevant to this case        Per Westermark      12/15/11 01:50      
            yes...      JecksonS Ben      12/16/11 01:11      
            Cable length      Mahmood Elnasser      12/16/11 01:38      
               It Can Be Calculated        Michael Karas      12/16/11 07:39      
                  Super      Mahmood Elnasser      12/16/11 14:06      
                     Is the Cabled Power Necessary??      Michael Karas      12/16/11 21:27      
                        Not for clocks      Mahmood Elnasser      12/17/11 00:41      
                           nice      JecksonS Ben      12/17/11 03:37      
                  LTC      JecksonS Ben      12/17/11 03:40      
               UUps      JecksonS Ben      12/17/11 03:32      
                  One way      Mahmood Elnasser      12/17/11 03:42      
                     EMI.      JecksonS Ben      12/17/11 04:00      
                        price performance      Mahmood Elnasser      12/17/11 07:54      
                        Baudrate + number of jumps means way more      Per Westermark      12/17/11 09:43      
                           yes.      JecksonS Ben      12/18/11 03:12      
                              But the slaves didn't need Internet access      Per Westermark      12/18/11 05:09      
                                 Correct?      JecksonS Ben      12/19/11 00:37      
                                    Not sure why      Per Westermark      12/19/11 00:57      
                                       Not sure why?      JecksonS Ben      12/19/11 01:19      
                                          If already drawing cables to slaves then one antenna easy      Per Westermark      12/19/11 02:30      
                                             GSM vs GPS      JecksonS Ben      12/20/11 01:40      
                                                GPS modules can be had very cheap      Per Westermark      12/20/11 06:30      
                                                   cheaper      JecksonS Ben      12/20/11 22:18      
                                                      where      Mahmood Elnasser      12/21/11 00:05      
                                                      Don't think so        Per Westermark      12/21/11 01:08      
                                                         I'm still...      JecksonS Ben      12/22/11 00:47      
         What voltage and what current...      Kai Klaas      12/15/11 08:20      
            transmit...      JecksonS Ben      12/16/11 01:11      

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