A three-quarter-inch plywood telephone board is mounted to the wall surface behind, supporting equipment up to a maximum weight of two hundred pounds. Anchorage to the surface follows specific patterns, with vertical fasteners spaced sixteen inches on center typically and horizontal fasteners at sixteen inches on center to the backing, maintaining six-inch maximum edge distances. A ground bar is installed per specifications and connected to the grounding system. Wall anchorage refers to structural details for concrete block or steel stud installations.
GROUND BAR PER SPECIFICATIONS 3/4"PLYWOOD TELEPHONE BOARD PER PLANS & SPECIFICATIONS. BACKBOARD ANCHORAGE TO SURFACE BEHIND. CONCRETE BLOCK WALL: REFER TO STRUCTURAL DETAIL 6/S9.01 16" O.C. TO STUD VERTICAL, TYPICAL 6" MAX 6" MAX 16" O.C. HORIZONTAL TO BACKING. AT STEEL STUD WALL: REFER TO STRUCTURAL DETAIL 8/S9.01 (MAX. WEIGHT 200 LBS)
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