Recommendations For Cable Management; Providing Power To The Device - Brocade Communications Systems VDX 6940 Hardware Installation Manual

Recommendations for cable management

• Ensure that the rack mounting does not impede airflow or negatively affect temperature
requirements, particularly if the device is installed in a closed or multirack assembly. Ensure that
airflow openings on the port and nonport side of the device are not obstructed.
CAUTION
Make sure the airflow around the front, sides, and back of the device is not restricted.
• The additional weight of the device does not exceed the rack's weight limits or unbalance the rack
in any way.
• The rack is secured to ensure stability in case of unexpected movement, such as an earthquake.
DANGER
Make sure the rack housing the device is adequately secured to prevent it from becoming
unstable or falling over.
Recommendations for cable management
The minimum radius to which a 50-micron cable can be bent under full tensile load is 5.1 cm (2 in.).
For a cable under no tensile load, that minimum is 3.0 cm (1.2 in.).
Cables can be organized and managed in a variety of ways; for example, use cable channels on the
sides of the EIA rack or patch panels to reduce the potential for tangling the cables. The following list
provides some recommendations for cable management:
NOTE
You should not use tie wraps with optical cables because they are easily overtightened and can
damage the optic fibers. Velcro-like wraps are recommended.
• Plan for the rack space required for cable management before installing the device.
• Leave at least 1 m (3.28 ft) of slack for each port cable. This provides room to remove and replace
the device, allows for inadvertent movement of the rack, and helps prevent the cables from being
bent to less than the minimum bend radius.
• For easier maintenance, label the cables and record the devices to which they are connected.
• Keep LEDs visible by routing port cables and other cables away from the LEDs.

Providing power to the device

Perform the following steps to provide power to the Brocade VDX 6940-36Q.
NOTE
Refer to "Power Precautions before connecting power."
Connecting an AC power cord
:
Use the supplied power cords. Ensure the facility power receptacle is the correct type, supplies the
required voltage, and is properly grounded.
Perform the following steps to connect to AC power:
32 Brocade VDX 6940 Hardware Installation Guide
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