Managing cables – Brocade VDX 8770-4 Hardware Reference Manual User Manual
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Brocade VDX 8770-4 Hardware Reference Manual
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Managing cables
3
3. Remove the protective plug from the QSFP transceiver and the protective cap from the special
QSFP cable and insert it into the transceiver until it is firmly seated.
The cables are also keyed to fit into the transceivers correctly.
When the cable is correctly seated, the status LED will change from amber to green.
4. Repeat
through
for the remaining QSFP ports.
5. Organize the cables. Refer to
Managing cables
Cables can be organized and managed in a variety of ways; for example, using cable channels on
the port sides of the rack or patch panels to minimize cable management. With the horizontal
orientation of the line cards in the Brocade VDX 8770-4, a pair of vertical cable management finger
assemblies have been provided to keep the cables from hanging down in front of other modules.
•
Following is a list of recommendations:
•
Leave at least 1 m (3.28 ft.) of slack for each port cable. This provides room to remove and
replace the Brocade VDX 8770-4, allows for inadvertent movement of the rack, and helps
prevent the cables from being bent to less than the minimum bend radius.
•
The minimum bend radius should be no smaller than ten times the cable radius. 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.).
•
If ISL trunking is in use, group the cables by trunking group.
•
Generally, Velcro
®
-type cable restraints are recommended to avoid creating sharp bends or
kinks in the cables. Do not use tie wraps with optical cables because they are easily
overtightened and can damage the optic fibers.
•
For easier maintenance, label the fiber-optic cables and record the devices to which they are
connected.
•
Do not route cables in front of the air intake vents.
•
Route the cables to the sides of the Brocade VDX 8770-4 through the vertical cable
management fingers.
•
Keep LEDs visible by routing port cables and other cables away from the LEDs.