Use where space limitation and low cost are factor. 110-wiring block are available with or without standoff legs. Legs can also be purchased separately (PN No.410L2-xxx). Kitted versions include 50, 100 or 300-pair bases with legs, labels, label holders, C-4 or C-5 connector block. Port ID option use the label strips and holders provided with the 300-pair wiring base and kit versions of these products. Mount on wall or backboard. Route cable bundles either adjacent to wiring bases or underneath units with legs. Route individually marked cables from both left and right sides. 89D mounting bracket is sold separately (40089-00D).