2-3
Cisco UCS C240 Server Installation and Service Guide
OL-25761-01
Chapter 2 Installing the Server
Preparing for Server Installation
Preparing for Server Installation
This section provides information about preparing for server installation, and it includes the following
topics:
•
Installation Guidelines, page 2-3
•
•
Equipment Requirements, page 2-4
•
Slide Rail Adjustment Range, page 2-4
Installation Guidelines
Warning
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of: 35° C (95° F).
Statement 1047
Warning
The plug-socket combination must be accessible at all times, because it serves as the main
disconnecting device.
Statement 1019
Warning
This product relies on the building’s installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than: 250 V, 15 A.
Statement 1005
Warning
Installation of the equipment must comply with local and national electrical codes.
Statement 1074
Caution
All Cisco UCS C-Series rack servers are shipped with rail kits and are expected to be rack-mounted. To
ensure proper air flow it is necessary to rack the servers using the provided rail kits. Physically placing
the units on top of one another or “stacking” without the use of the rail kits blocks the air vents on top
of the servers, which could result in overheating, higher fan speeds, and higher power consumption. It
is recommended that you mount your servers on the rail kits when installing them into the rack because
these rails provide the minimal spacing required between the servers. No additional spacing between the
servers is required when you mount the units using the provided rail kits.
Caution
Avoid UPS types that use ferroresonant technology. These UPS types can become unstable with systems
such as the Cisco UCS, which can have substantial current draw fluctuations from fluctuating data traffic
patterns.
