User's Manual

Table Of Contents
Installation Guidelines CMA-XXX-AEN Page 17
Draft
3.3.1.1 Rack Safety Instructions
The following guidelines are relevant to the rack installed units. Review the following guidelines to help ensure your safety and
protect the equipment from damage during the installation.
Only trained and qualified personnel should be allowed to install or replace this equipment.
The equipment has been designed to operate at the temperature range as stated in the product specifications. Verify that
ambient temperature of the environment does not exceed the maximum MRU operating temperature of 65°C (149° F)
IMPORTANT! If installed in a closed or multi-unit rack assembly, the operating ambient temperature of the rack
environment may be greater than the room ambient. Therefore, ensure that the installation environment complies with the
maximum MRU operating temperature.
To maintain a low center of gravity, ensure that heavier equipment is installed near the bottom of the rack and load the rack
from the bottom to the top.
Ensure that adequate airflow and ventilation within the rack and around the installed components so that the safety of the
equipment is not compromised. It is recommended to allow for at least about 2 cm of airspace between devices in the rack.
Verify that the equipment is grounded as required especially in installations using supply connections other than direct
connections to the branch circuit (e.g. use of power strips).
3.3.1.2 Rack Installation Guidelines
To maintain a low center of gravity, ensure that heavier equipment is installed near the bottom of the rack and load the rack
from the bottom to the top.
Verify that the rack height can support the unit to be installed (MRU rack height = 6U), where you may also want to consider
future installations.
3.4 Power Requirements
3.4.1 Power Safety Instructions
SAFETY WARNINGS! When installing or selecting the power supplies:
For AC models only use the provided AC power cable (straight, U.S 10 A ,UL, L = 1.8-2.5 m ,black,110 V ) to connect the
power supply to the MRU.
Be sure to disconnect all power sources before servicing.
Calculate the required power according to the requirements of the specific installation and then determine the configuration
of the power supplies. The required DC cables will then be determined by the selected PS configuration.
Use only UL approved power supplies
Install external over-current protective devices for the system according to the power specifications described in 1.2.3.
3.4.2 Types of Power Supplies
Corning supplies various power supplies that can be installed in a rack or mounted on a wall, depending on your configuration.
3.4.3 Circuit Breakers
Calculate the required fuse protection while referring to power specifications described in Appendix A: Specifications. When
installing fuse protections for the system, make sure to take into account other Corning system elements that may require
external fuse protection as well.