WARNING: The QFX3500 device must be supported at all four corners. Mounting
the chassis using only the front brackets will damage the chassis and can result in
serious bodily injury.
CAUTION: If you are installing the QFX3500 device above 60 in. (152.4 cm) from the
floor, you must remove the power supplies, fan trays, and management board before
attempting to install the device, or ask someone to assist you during the installation.
CAUTION: If you are mounting multiple devices on a rack, mount the device in the
lowest position of the rack first and proceed to mount the rest of the devices from
bottom to top.
Two Mounting Rails Procedure
To mount the device on four posts in a rack using a two-rail kit:
1. Attach the ESD grounding strap to your bare wrist and to a site ESD point.
2. With two mounting screws—and cage nuts and washers if your rack requires them—attach one of the
rear installation blades to the rear of the rack at the point where you want to mount the device. Tighten
the screws. The blade helps support the rear of the chassis. You install the second rear installation
blade after securing both front mounting brackets. See Figure 101 on page 330.
Figure 101: Installing an Installation Blade in a Rack
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