Re: Eye protection in DWDM systems -- what threshold?

I forget who the vendor is now, but their shelves are sealed with a door which, when opened, turns off all the lasers on the shelf so you can work on it, yes, a simple provisioning operation causes an outage / protection switchover!! Dave. Deepak Jain wrote:

At what power level do DWDM systems become dangerous to work near (i.e. not staring into any optics, using light meters, etc)? I never see technicians on inside DWDM systems using eye protection, but I see power levels of amps going higher and higher. On a recent meter I saw almost .6mW...

Any pointers to a document saying 1550nm becomes dangerous at xxxx dbM?

Thanks in advance,

DJ