Cat 5e/Class D, punchdown patch panels shall terminate 4-pair, 26 to 22 AWG, 100 Ohm unshielded twisted pair cable with an industry standard single wire 110 punchdown tool. Patch panels shall include a universal label coded for T568A and T568B wiring schemes and mount to 19 and 23 in racks. Patch panels shall be easy to identify with pre-printed numbers, write-on areas and optional label kits.