clark@beaver.cs.washington.edu> (03/15/90)
Someone asked recently here about local station wiring for ISDN. Here in my office there is some remodeling going on currently involving the same. ATT is installing several new drops for ATT 7500 series ISDN sets and rather than use the plain four pair cable that they use for the 2500 sets ( for the poens ), they are using a shielded type cable. I have a piece here and it reads: TENSOLITE (SJ) CL2P 150'C 24 AWG (UL) What I find strange about this stuff is the color coding... There are four pairs: RED - BLACK GREEN - BLACK BLUE - BLACK WHITE - BLACK ( the shield surrounds the whole bundle ) The only way to identify the BLACK conductors is to find which color they are twisted with. I think I perfer the scheme where a colored cond. is paired with a white cond. with that same color stripe on it. In addition, the conductors are stranded, rather than the conventional solid. Hope that this helps whomever needs it. Roger Swann | uucp: uw-beaver!ssc-vax!clark @ | The Boeing Company |