Brocade Communications Systems NetIron MLXe Series Hardware Installation Manual page 150

Installing a Brocade MLXe Series-32 router
10. Attach the rails to the front and back of the rack, using screws provided in the kit (refer to the following figure).
NOTE
The narrow telescoping ends of the rails should attached at the back of the rack.
FIGURE 71 Attaching the telescoping side rails to the rack.
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Brocade NetIron MLXe Series Hardware Installation Guide
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