ISDN Category 3 patch panels are high-density panels from 30 to 60 ports for all application like analogue and Digital Systems including ISDN and xDSL. They meet all electrical parameters for Category 3 and are designed with Dual IDC (termination blocks). The PCB together with solid quality components guarantee full Cat.3 bandwidth up to 16 MHz and exceeds all performance requirements (ISO/IEC, EN & EIA/TIA)