Specifications

7-4 Cisco MGX 8220 Reference, Release 4.1
Unpacking
An AC circuit breaker is recommenced for the AC power source which supplies AC power to
each MGX 8220 shelf. This circuit breaker should protect against excess currents, short circuits,
and earth faults in accordance with national and local electrical codes.
— United States—National Fire Protection Association (NFPA) 70, the National Electrical
Code
— Canada—Canadian Electrical Code, Part I, C22.1
— Other countries—International Electrotechnical Commission (IEC) 364, Parts 1 through 7
The dedicated circuit breaker should be sized so the rated current and the trip delay is higher and
longer than the MGX 8220 circuit breaker. A 20A, 2-pole AC circuit breaker with a long trip
delay is recommended.
For information purposes, the MGX 8220 shelf uses a 20A, 2-pole AC circuit breaker on each
AC input. The circuit breaker manufacturer is ETA (part number 8340-F120-P1P2-B2H020A).
Cooling
The site must be capable of maintaining a maximum ambient temperature of 50°C while the system
is operating (recommended range is 20
°C to 30°C). A fully loaded MGX 8220 shelf may dissipate
up to 2400 BTUs.
Unpacking
The MGX 8220 shelf, the Main Cooling Assembly, the Booster Cooling Assembly, the Plenum and
Spacer, and the AC Power Module are shipped in their own separate shipping containers.
To unpack and install the shelf and the cooling assembly, the following tools should be available:
• Utility knife
• Flat blade and Phillips screwdriver sets
• Grounding wrist strap
WarningIf any of the shipping containers are damaged, of if any of the various shipping indicators show
improper handling of the containers, contact your local shipping representative.
Unpacking Each Container
Use the following steps to unpack each container.
Step 1 Move the container to the area it is to be installed.
Step 2 Use a knife to open the cardboard container.
Step 3 Remove any foam packaging.
Step 4 Lift the module out of the container.
Step 5 Remove the anti-static bag surrounding the module.
Step 6 Remove any accessory hardware and set aside for future reference.
Step 7 Save the packing materials until the installation is complete.