3-6Installing the Access Controller with Front Mounting Brackets and a TrayThe tray is an optional component, which needs to be separately ordered if needed.Installation procedure with front mounting brackets and a tray:1) Put on the EAD-preventive wrist strap and check that the rack is sturdy and properly earthed.2) Take out the screws, which are packaged with the front mounting brackets. Attach the frontmounting brackets to the access controller with the screws, as shown in Figure 3-4.3) Fix the tray horizontally to a proper poison on the rack, as shown in Figure 3-10. (This figure is justfor your reference. The installation may differ on a different rack.)Figure 3-10 Install a tray4) Place the access controller on the tray horizontally, gently push the access controller into the rackalong the tray, and then use screws and the corresponding cage nuts to fix the front mountingbrackets to the front square-hole rack rails of the rack, as shown in Figure 3-11.Figure 3-11 Installation with front mounting brackets and a tray