I could think of a couple of measurements that are mandatory under B11-23A that you could easily fail when designing a modem for TBR21. Have they omitted a lot of clauses from B11-23A?
Best regards, Rene ---------- From: [email protected] on behalf of Duane J Marcroft Sent: Wednesday, May 21, 1997 9:05 AM To: [email protected] Subject: Re: A Clarification on Countries Accepting TBR 21 When I said France was accepting TBR 21 what I meant to say was: "A modem designed to pass TBR 21 will pass French approvals using <fontfamily><param>Courier</param>B11-23A, also known as AFNOR Z81-123, if the return loss is at least 14 dB</fontfamily>." As far as I know France is not performing or accepting TBR 21 testing. Sorry for the confusion. Duane >TREG'rs, > >Does anyone know which Euro countries have implemented TBR 21 approvals >testing for modems? > >I know Ireland, France and UK are doing so. Are there any others? > >Any information would appreciated. > >Thank you in advance. > >Regards, > >Duane
