A 24-port 8P4C female Telco 2U patch panel with a 2-wire RJ-45 USOC wiring scheme is ideal for KSU or PBX phone systems. The active pins are pin #4 and #5; the patch panel connects to 48 ports RJ-45 patch cords on the front and link the phone system with 50-pin Telco connectors on the back. Each 50-pin female Telco connector comes with a hook and loop tie that is seated in a socket to secure 25-pair cable for either 90 degrees or 180 degrees cable exits. Each patch panel also features a front write-on labeling area for port identification.