|On the back panel of a PC with a fax modem card there are two telephone receptacles: LINE and EXT. Currently I have an ADSL telephone line, with an intervening converter/router between the micro-filterd ADSL signal and the home phone and PC-fax. It works fine as follows: Converter-out to PCfax-LINE, PCfax-EXT to PHONE-in. Now I bought a separate fax machine but I would like to keep my old PC-fax operable -- as a backup. My questions are:|
1. Electrically, are the LINE and EXT connectors of fax machines/cards simply in parallel? (If so, they may be interchanged w/o any noticable effect.)
2. What's going to happen if I chain the two faxes: Converter-out to PCfax-LINE, PCfax-EXT to FAX-LINE, FAX-EXT to PHONE-in?
3. If (2) is not a good idea, how about splitting Router-out into 2 parallel lines, one for the PC-fax and phone (as previously), the other solely for the new fax machine (in which case FAX-EXT will remain vacant?)