12000 Series Switches
True Scale Fabric Switches 12000 Series Hardware
Installation Guide
July 2015
14
Order Number: G91928004US
• Keep all ports and connectors free of dust.
• Untwisted Pair (UTP) cables can build up Electrostatic Discharge (ESD) charges
when being placed into a new installation. Before installing category 5 UTP cables,
discharge ESD from the cable by plugging it into a port on a system that is not
powered on.
• When required for safety and fire rating requirements, plenum-rated cable can be
used. Check the local building codes to determine when it is appropriate to use
plenum-rated cable, or refer to IEC standard 850.
2.1.1.3
Cable Handling and Bend Radius
Provide proper strain relief by adhering to the following guidelines:
For copper cable, the temporary 90-degree bend can never be more than 0.5 inches
tighter than the values listed above for any assembly. This is the absolute minimum
sustained bend radius for each cable AWG size. This measurement is the distance from
the switch panel to the point where the cable makes a 90-degree bend. In other words,
this number includes the distance from the connector stand-off from the panel surface.
Table 1.
IB Copper Cable Guidelines
InfiniBand Copper Cable Bend Radii
American Wire Gauge (AWG) Size
Cable
Bend Radius
26
2.43 inches
28
2.28 inches
30
1.98 inches
Figure 2.
Copper Cable Bend Radius
