Flashing Cables. Argh - Esato archive

Posted by dxcore
Ok,i know that was posted a houndred times but i can't find this - what is the diffrence about T28 data cable and T28 service cable? Can any one give me photo of T28 service cable? And what is a diffrence about T39 and T28 cable? And can i make out from T39 cable a T28 service cable?