[e2e] Re: a problem...

[Puddinhead Wilson]

perhaps I should modify as someone asked for
clarification,

Channel between N1 and N2 has bandpass X, centred at f
(ofcourse copper behaves like copper)

do not wish to send a reverse "ack" for link detection
etc.

What are the simplest ways to do this,
for example the case of copper would be to simply
apply a DC voltage from the receiver side so that
txmtr can look at presence/absence of DC line voltage
to know link status.

What do i do for other cases like fiber or wireless?

 --- Puddinhead Wilson 
<puddinghead_wilson007 at yahoo.co.uk> wrote: 
> Hi there!
> 
> I have 
> N1----->N2
> 
> link from N1 to N2 is physical wire/unidirectional
> wave guide.
> 
> 
> No reverse connection possible
> 
> 1. if the media is copper, how does N1 detect that
> link N1-N2 is down so it should not transmit? (i
> think
> i can solve this one)
> 2. if the media is fiber/wireless how will i solve
> this? (i dont know how to this one :( )
> 
> any takers?
> 
> 
> 
> 	
> 	
> 		
>
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