Yes I would agree with Bill's statements having been involved in a V.35 worldwide compliance project 4 years ago. We needed North American version, European CTR version and ITU-T(old version) designs. Many countries use and expect the old version. My best advise is follow the requirement strictly.
Regards G. Rae Dulmage, B. Comm., President TelApprove Services Corporation 1+613 257 3015 http://www.angelfire.com/on/telapprove Bill Ellingford wrote: > Hi Kim Boll Jensen & Treg > I remember responding to a similar question through Treg some time ago. The > answer is that there are two versions of V.35 interface. The pin-outs and > connector (type MRAC) do not change, but electrical spec of the I/O lines > does. In the USA and Canada take care to ensure which type of V.35 system > you are designing. All V.35 interfaces have V.28 control lines but the > Hybrid version with V.28 and V.11 circuits is often used instead of the very > low voltage (+ - 0.55v balanced) original V.35 signal lines. You may require > two versions for global markets. (Study the V.35 changes made at red and > blue book issue). > > Best regards: > Bill Ellingford. Motion Media Technology Ltd > > ---------- > From: [email protected][SMTP:[email protected]] > Sent: 10 September 1999 12:06 > To: [email protected] > Subject: V.35 standard > > Dear all > > We are working on a product which implements a V.35 interface, and we have > just > got a list of ITU-T standards which shows that V.35 have not been valid since > 1988. I know that a lot of new equipment still uses V.35 but have this > standard > been changed to another standar but still called V.35 ? > > Can anyone tells me more about the "life of V.35". > > Best regards, > > Mr. Kim Boll Jensen
