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
Warning
This unit is intended for installation in restricted access areas. A restricted access area can be accessed
only through the use of a special tool, lock, and key, or other means of security.
Statement 1017
Warning
Rack the appliance using rail kits to ensure proper airflow. 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. We recommend that you mount your servers
on rail kits while installing in 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 rail kits.
Caution
Follow these guidelines while installing the appliance:
• Ensure that there is adequate space around the appliance to allow for easy access and for adequate airflow.
• Ensure that the air-conditioning meets the thermal requirements listed in the Environmental Specifications,
on page 31.
• Ensure that the cabinet or rack meets the requirements listed in the Rack Requirements, on page 18.
• Ensure that the site power meets the power requirements listed in the Power Specifications, on page 32.
If available, you can use an uninterruptible power supply (UPS) to protect against power failures.
Rack Requirements
The rack must be of the following type:
• A standard 19-inch (48.3 cm) wide, four-post EIA rack, with mounting posts that conform to English
universal hole spacing, per section 1 of ANSI/EIA-310-D-1992.
• The rack-post holes can be square 0.38-inch (9.6 mm), round 0.28-inch (7.1 mm), #12-24 UNC, or #10-32
UNC when you use the Cisco-supplied slide rails.
• The minimum vertical rack space per server must be one rack unit (RU), equal to 1.75 inch (44.45 mm).
Cisco Secure Network Server 3700 Series Appliance Hardware Installation Guide
18
Installing the Appliance
Rack Requirements
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