Additional library grounding (bonding)
You can attach additional grounding (bonding) wires to the TS4500 tape library frame.
The library is grounded to the grounding conductor of the AC power distribution of the building through the library power cords. However, you can provide additional grounding (bonding) of the library frames to the building. A grounding (bonding) conductor may be attached to any library frame at one of the 2 threaded holes (M6) at the bottom, back corners of the library frame. See 1 and 2 in Figure 1.
The library frames are electrically bonded together by the accessor rail and the frame to frame mechanical connections. It is not necessary to bond every frame individually.

To install your additional grounding (bonding) wires: