HP StorageWorks 2/128 HP StorageWorks SAN Director 2/128 Installation Guide, V - Page 110
Replacing the Cable Guides (Pillars), minimum bend radius.
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Installing SAN Director 2/128 FRUs Replacing the Cable Guides (Pillars) The cable guides (pillars) can be used to organize the port cables into logical groups, such as port quads (sets of four neighboring ports). The cable pillars do not attach to the chassis. The cable pillars also serve to keep the cables evenly spaced and hold them away from the 16-port card, to prevent the cables from bending to less than the minimum bend radius. Caution: Do not route the cables in front of the air exhaust vent, which is located at the top of the port side of the chassis. Arrange the cables so that the minimum bend radius is not exceeded; for a 50-micron cable, the minimum bend radius is 2 inches under full tensile load and 1.2 inches with no tensile load. Tie wraps are not recommended for optical cables because they are easily overtightened and can break the optical cables. To use the cable pillars, orient them horizontally and insert the cables into the holes, using a separate hole for each cable (see "Managing Cables" on page 63). 110 SAN Director 2/128 Installation Guide
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