Ron, I've lifted your questions from below and provided my response within << >>.
Tania Grant, Lucent Technologies, Octel Messaging Division tgr...@lucent.com I would also ask, what if it connects to a telecommunications network? ..... I have responded by saying that the NEC (based on 800-4) requires products to be Listed that connect to a telecommunications network. Does this argument from these people have any merit? <<NO.>> Do battery powered products that connect to a telecommunications network need to be, in fact, Listed? <<YES. 800-4 requires Listing for telco equipment, and 480-3 requires that equipment supplied by storage batteries meet the requirements of the NEC.>> Also, as described in the NEC, does the term "telecommunications network" refer to only public networks? <<90-2 covers Scope of the NEC. 90-2(a) describes what is covered; 90-2(b) describes what is not covered. 90-2(b)(4) states the following: "Installations of communications equipment under the exclusive control of communication utilities located outdoors or in building spaces used exclusively for such installations." It has been my experience that telcos may reserve the above exclusion for themselves when they manufacture their own equipment, but demand Listing when buying it from someone else to be installed in their locations. Also, Bellcore standard (forget which one, and I am too tired to go chase it right now) states that equipment must meet UL1459. (Hopefully, the next edition will add "...and/or UL1950, 3rd edition or later.") In any event, telcos have been buying our equipment meeting UL1459 or UL1950, 3rd edition.>> ---------- From: ron_pick...@hypercom.com[SMTP:ron_pick...@hypercom.com] Sent: Thursday, September 17, 1998 5:16 PM To: emc-p...@ieee.org Cc: tgr...@lucent.com; richard.pa...@exgate.tek.com Subject: Re[2]: US NRTL required ? Hi Richard, You raised this point (some additional thoughts of mine follow): >Let me take this opportunity to present another point for anyone who >cares to give it some thought. > >The NEC and/or local electrical requirements come into play because the >product connects to the local electrical supply. > >What about battery operated products ? Is there then nothing that says >that a battery operated product needs any third-party safety approvals ? I would also ask, what if it connects to a telecommunications network? In my travels, I've come across some people that have said that "All you need is an external Listed power supply and there's no need (safety-wise) to do anything else, even if the product does connect to the PSTN." I have responded by saying that the NEC (based on 800-4) requires products to be Listed that connect to a telecommunications network. Does this argument from these people have any merit? Do battery powered products that connect to a telecommunications network need to be, in fact, Listed? Also, as described in the NEC, does the term "telecommunications network" refer to only public networks? Comments? Best regards, Ron Pickard ron_pick...@hypercom.com --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).