A 3/4-inch plywood telephone backboard is mounted to the wall surface behind, supporting a maximum weight of 200 pounds. The backboard is secured with anchors spaced 16 inches on center vertically and horizontally, with maximum 6-inch edge distances. A ground bar is installed per specifications and connected to the grounding system. Wall attachment methods reference structural details for concrete block or steel stud partitions.
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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