HP Cisco MDS 9020 Cisco MDS 9200 Series Hardware Installation Guide (OL-16188- - Page 59

Installation Guidelines

Page 59 highlights

Chapter 2 Installing the Cisco MDS 9200 Series Preinstallation Installation Guidelines Follow these guidelines when installing the Cisco MDS 9200 Series: • Plan your site configuration and prepare the site before installing the chassis. Appendix D, "Site Planning and Maintenance Records," lists the recommended site planning tasks. • Record the information listed in Appendix D, "Site Planning and Maintenance Records," as you install and configure the switch. • Ensure that there is adequate space around the switch to allow for servicing the switch and for adequate airflow (Appendix B, "Technical Specifications," lists airflow requirements). • Ensure that the air-conditioning meets the heat dissipation requirements listed in Appendix B, "Technical Specifications." • Ensure that the cabinet or rack meets the requirements listed in Appendix A, "Cabinet and Rack Installation." Note Jumper power cords are available for use in a cabinet. See the "Jumper Power Cord" section on page C-11. • Ensure that the chassis is adequately grounded. If the switch is not mounted in a grounded rack, Cisco recommends connecting both the system ground on the chassis and the power supply ground to an earth ground. • Ensure that the site power meets the power requirements listed in Appendix B, "Technical Specifications." If available, you can use an uninterruptible power supply (UPS) to protect against power failures. Caution Avoid UPS types that use ferroresonant technology. These UPS types can become unstable with systems like the Cisco MDS 9000 Family, which can have substantial current draw fluctuations because of fluctuating data traffic patterns. • Ensure that circuits are sized according to local and national codes. For North America, the 845-W power supply requires a 15-A or 20-A circuit. If you are using a 200- or 240-VAC power source in North America, the circuit must be protected by a two-pole circuit breaker. Caution To prevent loss of input power, ensure the total maximum loads on the circuits supplying power to the switch are within the current ratings for the wiring and breakers. • Use the following screw torques when installing the switch: - Captive screws: 4 in-lb - M3 screws: 4 in-lb - M4 screws: 12 in-lb - 10-32 screws: 20 in-lb - 12-24 screws: 30 in-lb OL-16188-01 Cisco MDS 9200 Series Hardware Installation Guide 2-3

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2-3
Cisco MDS 9200 Series Hardware Installation Guide
OL-16188-01
Chapter 2
Installing the Cisco MDS 9200 Series
Preinstallation
Installation Guidelines
Follow these guidelines when installing the Cisco MDS 9200 Series:
Plan your site configuration and prepare the site before installing the chassis.
Appendix D, “Site
Planning and Maintenance Records,”
lists the recommended site planning tasks.
Record the information listed in
Appendix D, “Site Planning and Maintenance Records,”
as you
install and configure the switch.
Ensure that there is adequate space around the switch to allow for servicing the switch and for
adequate airflow (
Appendix B, “Technical Specifications,”
lists airflow requirements).
Ensure that the air-conditioning meets the heat dissipation requirements listed in
Appendix B,
“Technical Specifications.”
Ensure that the cabinet or rack meets the requirements listed in
Appendix A, “Cabinet and Rack
Installation.”
Note
Jumper power cords are available for use in a cabinet. See the
“Jumper Power Cord” section on
page C-11
.
Ensure that the chassis is adequately grounded. If the switch is not mounted in a grounded rack,
Cisco recommends connecting both the system ground on the chassis and the power supply ground
to an earth ground.
Ensure that the site power meets the power requirements listed in
Appendix B, “Technical
Specifications.”
If available, you can use an uninterruptible power supply (UPS) to protect against
power failures.
Caution
Avoid UPS types that use ferroresonant technology. These UPS types can become unstable
with systems like the Cisco MDS 9000 Family, which can have substantial current draw
fluctuations because of fluctuating data traffic patterns.
Ensure that circuits are sized according to local and national codes. For North America, the 845-W
power supply requires a 15-A or 20-A circuit.
If you are using a 200- or 240-VAC power source in North America, the circuit must be protected
by a two-pole circuit breaker.
Caution
To prevent loss of input power, ensure the total maximum loads on the circuits supplying
power to the switch are within the current ratings for the wiring and breakers.
Use the following screw torques when installing the switch:
Captive screws: 4 in-lb
M3 screws: 4 in-lb
M4 screws: 12 in-lb
10-32 screws: 20 in-lb
12-24 screws: 30 in-lb