Cabling
Cabling overview
This section provides guidelines that help you make informed decisions about cabling the server and
hardware options to optimize performance.
CAUTION: When routing cables, always be sure that the cables are not in a position where they
can be pinched or crimped.
When installing cables, observe the following:
• All ports are labeled:
◦ System board ports
◦ Bayonet board ports
◦ Riser board ports
◦ Controller ports
• Most data cables have labels near each connector with destination port information.
• Some data cables are pre-bent. Do not unbend or manipulate the cables.
• Before connecting a cable to a port, lay the cable in place to verify the length of the cable.
• Before disconnecting a cable, check whether there is a release latch. Do not forcibly disconnect cables
from the ports.
Cabling guidelines
The cable colors in the cabling diagrams used in this chapter are for illustration purposes only. Most of the
server cables are black.
Observe the following guidelines when working with server cables.
Before connecting cables
• Note the port labels on the PCA components. Not all of these components are used by all servers:
◦ System board ports
◦ Drive and power supply backplane ports
◦ Expansion board ports (controllers, adapters, expanders, risers, and similar boards)
• Note the label near each cable connector. This label indicates the destination port for the cable
connector.
• Some data cables are pre-bent. Do not unbend or manipulate the cables.
• To prevent mechanical damage or depositing oil that is present on your hands, and other
contamination, do not touch the ends of the connectors.
64 Cabling
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