Chris, When your product has a telecom I/F, then the RTTE Directive is applicable and no voltage limit applies. Even w/o the modem I/F and when this product is finally powered by a wall adaptor (230V => 24V dc), then the LVD is applicable. When the modem is powered by a 24Vdc source, no modem is equipped, then I believe the GPSD is applicable, although no CE marking required here, and compliance can be demonstrated by using EN60950 if the product is within its scope. Best regards, Kris Carpentier Regulatory & Approvals
_____ From: [email protected] [mailto:[email protected]] On Behalf Of Chris Wells Sent: dinsdag 13 februari 2007 13:05 To: [email protected] Subject: LVD voltage level exception rule I am looking for help rationalizing when a product must be evaluated to the LVD. This is for a product my company is considering namebranding. I would like to see the product evaluated to EN60950 but the vendor is arguing that due to the 24VDC, low voltage rating the product does not need to be formally evaluated to an European safety standard to claim the CE mark. The product does meet UL508. Background - The product is a communication gateway with the following ports: * DC power in put 24VDC ~ 10W (not internally fused) * Ethernet, Cat5 RJ45 twisted pair LAN/WAN interface * RS485 multipoint subnetwork (Modbus, cable up to ~ 4K') * Proprietary twisted pair multipoint network similar to RS485 (cable up to 10K') * RS232 port for connecting to external modem like devices * USB slave - temporary programming port * Modem Interface - optional (not found on all models) In my view the Modem interface is very hazardous and so the product should be formally evaluated. Since the modem interface is a USA version perhaps this model could be excluded from having a CE mark. Anything else stand out as requiring evaluation to EN60950? Also I remember reading that this voltage limit exception topic is under review. Thanks Chris Wells [email protected] - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
