[MLB-WIRELESS] Re: [Syd-Wireless] D-Link POE Unit - DistanceAnswers

[vak at alphalink.com.au]

Howdy,

You shouldn't refer to collision domains AT ALL when talking about POE. If
you've opened up one of these boxes (and any other POE box for that
matter), what basically happens is that pairs 2 and 3 (pins 1, 2, 3, 6) go
straight through to the other side - no hub, no electronics, etc in between.

The other two pairs are used to pump power to the other side. Some POE
units (as is the case with the DLink) usually some sort of power regulation
at the input side - don't ask me why - seems pointless. All of them should
have a regulator at the output end (where the AP, etc resides).

According to Ethernet standards, you are allowed a maximum of 95 metres of
solid cable (single core conductors) and 15 metres of patch (flex). Total =
110 metres maximum allowable.

Cheers,

Vaskos
--------

Original Message:
-----------------
From:  Michael_Florence at dlink.com.au
Date: Thu, 12 Dec 2002 10:33:03 +0900
To: midwaym19 at ozemail.com.au, melbwireless at wireless.org.au,
syd-wireless at lists.sydneywireless.com
Subject: Re: [MLB-WIRELESS] Re: [Syd-Wireless] D-Link POE Unit -
DistanceAnswers





Ouch, Another one of our techs just got back with this answer:

I do not think the DWL-P100 creates separate collision domains on each RJ-45
port. I guess it acts as a hub. So the total length of the UTP cable should
not
exceed 100m: PC -> 20m -> DWL-P100 -> 80m -> AP.


-Michael










"Jason Clarke" <midwaym19 at ozemail.com.au> on 12/12/2002 07:57:08 AM
                                                                            
    
                                                                            
    
                                                                            
    


                                                              
                                                              
                                                              
 To:      melbwireless at wireless.org.au,                       
          syd-wireless at lists.sydneywireless.com               
                                                              
 cc:      (bcc: Michael Florence/Sales/DLINK-AUST)            
                                                              
                                                              
                                                              
 Subject: [MLB-WIRELESS] Re: [Syd-Wireless] D-Link POE Unit - 
          Distance Answers                                    
                                                              







Michael,

Thanks for the info.

J
----- Original Message -----
From: <Michael_Florence at dlink.com.au>
To: <melbwireless at wireless.org.au>; <syd-wireless at lists.sydneywireless.com>
Sent: Thursday, December 12, 2002 10:44 AM
Subject: [Syd-Wireless] D-Link POE Unit - Distance Answers


>
>
> OK, where X = the length of the power cable (less than 1 metre)
>
>
> PC Or Switch-> 100mtrs <- DWL-P100 Base Unit
>
> DWL-P100 Base Unit -> 100mtrs <- DWL-P100 Terminal Unit
>
> Terminal Unit -> X mtrs <-- AP
>
>
> So, 200 metres.
>
> http://www.dlink.com/products/wireless/dwlp100/
>
>
> Michael Florence
> michael at dlink.com.au
>
>
>
>
> _______________________________________________
> Syd-Wireless mailing list
> Syd-Wireless at lists.sydneywireless.com
> For account administration (such as removing yourself from the mailing
list and changing your email address)
> http://lists.sydneywireless.com/mailman/listinfo/syd-wireless


To unsubscribe: send mail to majordomo at wireless.org.au
with "unsubscribe melbwireless" in the body of the message





To unsubscribe: send mail to majordomo at wireless.org.au
with "unsubscribe melbwireless" in the body of the message


--------------------------------------------------------------------
mail2web - Check your email from the web at
http://mail2web.com/ .



To unsubscribe: send mail to majordomo at wireless.org.au
with "unsubscribe melbwireless" in the body of the message