[c-nsp] Where do you put the optical attenuators?

[Justin Shore]

I don't believe there is a technical reason to have it on one end or the 
other, just so long as you have one on each path.  For organizational 
purposes I would strongly recommend keeping them in the same location 
though whether it's on the switch-end of the fiber jumpers attached to 
SW1 or in the fiber panel that SW2's fiber jumpers connect in to. 
Remember you're not trying to protect the fiber from an aggressive 
laser; you're protecting the optics at the other end.

Justin


Tassos Chatzithomaoglou wrote:
> Does anyone know if in-line optical attenuator have to be connected on the receiver side only?
> 
> For example in the following link
> 
> 
>     A---------------------C
> SW1                      SW2
>     B---------------------D
> 
> SW1 is transmitting through A and receiving through B
> SW2 is transmitting through D and receiving through C
> 
> Where is the best place to put the attenuators? B & C?
> Can i put them on A & B?
> 
> I did some tests putting them on every possible side (as long as there is one on each fiber strand) and all of them worked, but i 
> was wondering if there is a best practice about them.
>