HP StorageWorks 2/128 HP StorageWorks SAN Director 2/128 Installation Guide, V - Page 110

Replacing the Cable Guides (Pillars), minimum bend radius.

Page 110 highlights

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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Installing SAN Director 2/128 FRUs
110
SAN Director 2/128 Installation Guide
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).