... individual O-Rung / U-Channel spaced on150, 225,300 or 600mm cente Cable Ladder:two longitudinal side rails connected by individual O ... -Rung/U-Channel spaced on 150, 225, 300 or 600 mm centers. Cable Ladders are the most commonly used type of ... : Interior width of the cable support system is available for cable fill. Standard widths are 50, 100, 150, 200, 300, , 1000 mm. Non ...