Rack Mounting; Grounding; Fans And Airflow; Power - Dell Z9000 Manual

Rack Mounting

When you prepare your equipment rack, ensure that the rack is earth ground.
Ground the equipment rack to the same ground point the power service in your area uses. The ground
path must be permanent.

Grounding

Use the Z9000 in a common bond network (CBN).
Connect the grounding cables as described in

Fans and Airflow

The Z9000 fans support two airflow options.
Be sure to order the fans suitable to support your site's ventilation. Use a single type of airflow fan in your
system. Do not mix reverse and normal airflows in a single S4810–ON chassis.
• Normal — airflow is from the I/O panel to the power supply. The grab-handle is labeled Exhaust.
• Reversed — airflow is from the power supply to the I/O panel. The grab-handle is labeled Intake.
For proper ventilation, position the Z9000 in an equipment rack (or cabinet) with a minimum of 5 inches
(12.7 cm) of clearance around the exhaust vents. When you install two Z9000 systems near each other,
position the two chassis at least 5 inches (12.7 cm) apart to permit proper airflow. The acceptable
ambient temperature ranges are listed in Specifications.
The fan speed increases and decreases automatically based on the system's state and temperature. The
switch never intentionally turns off the fans. To see the log messages, use the show logging
command. For more information, refer to the System Logs chapter of the Dell Networking OS Command
Line Reference Guide for the Z9000 System and the Dell Networking OS Configuration Guide for the
Z9000 System.
NOTE: Power Supplies and Fan Modules are field replaceable units. Dell Networking does not
support a mix of power supply types (such as, AC and DC) in the same switch. If a power supply is
added or replaced, it MUST match the existing type of power supply (such as, AC and AC or DC and
DC).

Power

To connect the chassis to the applicable power source, use the appropriate power cord with the Z9000.
An AC power cord is included with the system.
When installing AC systems, follow the requirements of the National Electrical Code, ANSI/NFPA 70
where applicable.
The system is powered-up as soon as the power cord is connected between the system and the power
source.
CAUTION: Always disconnect the power cable before you service the power supply slots.
12
Install the Z9000.
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