Brocade VDX 6740 Hardware Reference Manual (Supporting VDX 6740, VDX 6740T, and VDX 6740T-1G) - Manual (Page 21)

Brocade VDX 6740 Hardware Reference Manual 9
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Installation and safety considerations
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• The equipment in the rack is grounded through a reliable branch circuit connection and
maintains ground at all times. Do not rely on a secondary connection to a branch circuit, such
as a power strip.
• Ensure that the rack mounting does not impede airflow or negatively affect temperature
requirements, particularly if the switch is installed in a closed or multirack assembly. The
Brocade VDX 6740T and Brocade VDX 6740T-1G have airflow openings on either side of the
switch toward the front. Ensure that these openings are not obstructed.
• The additional weight of the switch 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.
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 cabinet 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 switch.
• Leave at least 1 m (3.28 ft) of slack for each port cable. This provides room to remove and
replace the switch, 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.
Items required for installation
The following items are required for installing, configuring, and connecting the Brocade VDX 6740
switches for use in a network and fabric:
• A workstation with an installed terminal emulator, such as HyperTerminal.
• An unused IP address and corresponding subnet mask and gateway address.
• A serial cable (provided).
• An Ethernet cable.
• (Optional) Access to an FTP server or Brocade-branded USB device for backing up the switch
configuration.
• If mounting in the iDataplex IBM 15.5-inch depth rack, the Brocade iDataplex rack mount kit.