Terminology - Hybrid. (maybe) Reminds me of the days when I used to understand things, or at least my memory's bad enough to have blurred the truth :-)
Gaz ""Daniel Cotts"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I started working on T-1s in 1969. Actually four wire circuits go way back > to analog trunk lines. An amplifier works in one direction only. Two wire > circuits went through a two wire to four wire coil at each end.(can't > remember the terminology). The circuit was four wire for the long haul. Each > transmit was amplified. N carrier circuits again used four wire. The > channels were seperated by frequency. L carrier used coax. Can't remember if > one or two cables as I didn't work on it. > > -----Original Message----- > > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] > m > > Subject: Re: Serial links [7:28270] > Each side has its own dedicated transmit pair. Big deal. That's been the > case on WANs since like the 1940s or something. Well, maybe the 1970s. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=28474&t=28270 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
