Group, And yet another laser question. How would one certify/classify Optical Gear in "Europe Only" where the transceiver may very well be a class 1 laser, but because you multiplex multiple channels before launching on the line coming out of the CO, your aggregate power can be significantly higher than class 1?
This is common in DWDM designs and to make this even worse the power can be further boosted with an amplifier down the line. So what you may start with inside your "Controlled Access Environment" is a Class 1 laser but end up with something much higher than class 1 down the line. How would you classify/certify this product by laser class? How would you protect the person working outside of the CO from the hazard? Has anyone used or heard of using S/W as a safety device as opposed to using Automatic Laser Shutdown (ALS) or Automatic Power Reduction (APR) devices? Where does the Telecom manufacturer's responsibility for the system end? Is it at the system or at the other end of the fiber connection including everything in between? All input is appreciated. Jeffrey Collins Sr. HW Engineering Manager EMC/ NEBS/ Safety/ Reliability CIENA Core Switching Division 10480 Ridgeview Court, Cupertino, CA. 95014 (408) 366-4806, Fax (408) 366-4866 jcoll...@ciena.com http://www.ciena.com ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
