User guide

Installation 2-17
Cable Installation Considerations
To ensure the cabling in the back of a rack system does not interfere with
system operation or maintenance, follow these instructions for cable
management.
This configuration allows removal of either hot-pluggable power supply in
redundant power supply systems without disturbing system operation. With
the cables out of the way, LEDs are easily visible.
CAUTION: Do not overtighten the cable ties. Damage to the optical cables may
result.
■ All cables, including Fibre Channel and power for each RA4100, should
be bundled along the plane of the top of the system. Use one or more
cable ties to hold the cables together securely at the back of the unit.
■ All cables should run through the cable channel on the left side of the
rack. See Figure 2-10.
CAUTION: Make certain the Fibre Channel cables are installed and supported
so that no excess weight is placed on the Fibre Channel connectors. This is
necessary to prevent damage to the connector and cable and to prevent a cable
bend radius less than 3 inches at the connector and along the cable length.
Excess Fibre Channel cable should be coiled and tied out of the way, being
careful not to coil the cable in a tight loop with a bend radius of less than
3 inches.
Figure 2-11. Cable management using cable ties