Ruediger Vermoehlen <ruediger@informatik.rwth-aachen.de> (04/29/91)
Hi NETers! I have a question about the pin assignment of US phone jacks and the purpose of some pins. In a user manual of a modem, I found a diagram of a so called 'RJ12/13' modular jack with lines referred to as R, T, A, and A1. The function of R and T is obvious (analog input/output), while the function of the other two puzzles me. I would appreciate any information anybody can give me about these lines. Please reply by mail. Thanks in advance, Ruediger Vermoehlen ruediger@informatik.rwth-aachen.de ruediger@rwthinf.uucp ruediger%rwthinf.uucp@uunet.uu.net ...!uunet!mcsun!unido!rwthinf!ruediger