Un laser c'est pas dangereux ! Hein ?
- On s'en sert pour découper les métaux, et les trucs solides !
- On s'en sert pour opérer les gens (les yeux, les jambes, etc... !)
Apparement aucun risque sauf que :
"A third scenario deals with high power required by the
video signal to drive the receivers at the customer
premise. The analog video signal leaves the central office
with relatively high power and reaches the splitter in the
FDH with a power level around 20dBm. This high power
level at the splitter input port can create a potential laser
eye safety issue for technicians. Therefore, the decision is
whether or not to have a connectorized interface at the
splitter input.
In order to eliminate this potential safety issue from the
network, the input to the optical splitter could be spliced.
Although less flexible than the two connector pair
scenario, this architecture would still have a
connectorized splitter output for easier test access and
on-demand service turn-up at the distribution end. This
scenario reduces cost, lowers db loss, and eliminates the
high power laser safety issues. However, it still requires a
splice technician to be present to add splitters to the
FDH, mitigating some of the sought-after cost savings."
1 commentaire:
Il y a bien des lasers dans les lecteurs CD/DVD etc...
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