From: [email protected] Subject: Re: SAFETY, UL1950 Ed.3, T1 service status To: [email protected] Message-Id: <[email protected]> X-Vms-To: INTERNET"[email protected]" Mime-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=US-ASCII Content-Transfer-Encoding: 7BIT
Dear Treggers, Many thanks to Micheal Royer and Joe Randolf for their input to this discussion, I have just started reviewing your comments inconjunction with IEC 950 Ed.2/Amd.4. It takes more than one read to process it in the grey matter ! In response to the question raised regarding 'Publication' and 'dow'. The Publication date is the first point at which the standard becomes publically available. The Date Of Withdrawal (dow) is the time limit set by the standards body (eg CENELEC) by which date the previous version(s) or similar national standards must be withdrawn. In the case of EN 60950 we will only now have a truly logical transition, where Ed.2 Amd.4 when it is published will incorporate ALL amendments (1,2,3 and 4) ! The closing date for National voting on CENELEC EN 60950/prAA (Ed.2/Amd.4) is 1-Sept-96, by the way. Anyway back to my original question.... Is the T1 service considered to be subject to overvoltages ? Again I refer to my original question about the application of the CSU/DSU, where it appears to becoming increasingly popular to incorporate the CSU/DSU within the build of a product. Best regards, Edward Fitzgerald GSM : +44-4685-33-100 Internet : [email protected] X.400 : G=Edward; S=Fitzgerald; A=400net; P=itu; C=ch
