The FCC has granted 2 waivers so far to allow for registration of DSL equipment under Part 68. The waivers relate to the requirements of 68.308(e)(1) which DSL cannot meet. Alcatel has submitted a petition for waiver of the same section for their DSL equipment. Comments are due Nov 19. Any manufacturer wishing to obtain FCC Part 68 registration for their DSL can do so through the waiver process. TIA TR41.9 has a working group with a charter to formulate the Part 68 applicable requirements for DSL devices. To join this group, contact either Anh Wride ([email protected]) or John Shinn ([email protected]). ____________________________________________________________________________ ___
Anh Wride Chair, TIA TR41.9 Director of Engineering Communication Certification Laboratory 1940 W. Alexander Street Salt Lake City, UT 84119-2039 Voice:801/972-6146 ext 1216 Fax: 801-972-8432 email: [email protected] Internet: www.cclab.com ____________________________________________________________________________ ____ -----Original Message----- From: David Gelfand <[email protected]> To: [email protected] <[email protected]> List-Post: [email protected] Date: Thursday, November 18, 1999 1:00 PM Subject: Re: LADC Part 68 testing & DSL technologies >LADC used special unloaded lines I believe for greater bandwidth. I don't >think LADC tests are appropriate for DSL. Does anyone know where the FCC is >headed regarding DSL? FYI we built two LADC loop simulators, then after >realized that we didn't need them. > >David > >David Gelfand P.Eng >Approvals Group Leader >Memotec Communications Inc. > >----- Original Message ----- >From: Jon Griver <[email protected]> >To: <[email protected]> >Sent: Thursday, November 18, 1999 12:29 PM >Subject: LADC Part 68 testing & DSL technologies > > >> Dear Group, >> >> >> Recently, a new DSL technology for using POTS lines for data applications >> is being used. >> In the new applications the telephone line is used for two purposes. It is >> used as a telephone line connected to the PSTN and it is used for data >> purposes between terminals (PCs for example). The specialty of this >> technology is the use of existing telephone wiring. >> >> Two questions: >> >> 1) Is LADC testing the correct method for testing this technology? >> >> 2) Does anyone know where to buy or how to build the impedance simulator, >> which is indicated in Figure 68.3(i) of 47CFR part 68? (the schematics in >> the standard are not very useful, there are Zp values which are not >defined >> very well) >> >> >> Thanks, >> >> Jon Griver >> >> >> >
