Foundry NetIron MLX Series Installation and Basic Configuration Guide
3-2
© 2008 Foundry Networks, Inc.
December 2008
Power Precautions
CAUTION:
Use a separate branch circuit for each AC power cord, which provides redundancy in case one of the
circuits fails.
WARNING:
Make sure to choose the appropriate circuit device, depending on the number of AC power supplies
installed in the chassis.
WARNING:
Disconnect the power cord from all power sources to completely remove power from the device.
WARNING:
Make sure that the power source circuits are properly grounded, then use the power cord supplied
with the device to connect it to the power source.
WARNING:
If the installation requires a different power cord than the one supplied with the device, make sure
you use a power cord displaying the mark of the safety agency that defines the regulations for power cords in your
country. The mark is your assurance that the power cord can be used safely with the device.
WARNING:
Make sure the rack or cabinet housing the device is adequately secured to prevent it from becoming
unstable or falling over.
WARNING:
Mount the devices you install in a rack or cabinet as low as possible. Place the heaviest device at the
bottom and progressively place lighter devices above.
CAUTION:
Ensure that the device does not overload the power circuits, wiring, and over-current protection. To
determine the possibility of overloading the supply circuits, add the ampere (amp) ratings of all devices installed
on the same circuit as the device. Compare this total with the rating limit for the circuit. The maximum ampere rat-
ings are usually printed on the devices near the input power connectors.
CAUTION:
NetIron MLX -4, -8, -16, and -32 devices with DC power sources are intended for installation in
restricted access areas only. A restricted access area is where access can be gained only by service personnel
through the use of a special tool, lock and key, or other means of security, and is controlled by the authority
responsible for the location.
CAUTION:
All devices with AC power sources (NetIron MLX-32 only) are intended for installation in restricted
access areas only. A restricted access area is a location where access can be gained only by service personnel
through the use of a special tool, lock and key, or other means of security.
CAUTION:
For a DC system, the gauge of wire will be determined by the power source as well as the power
supply draw (see Table 3.1). Use a grounding wire of at least 6 American Wire Gauge (AWG). The AWG wire
should be attached to an agency-approved crimp connector (provided on the NetIron MLX Series chassis),
crimped with the proper tool. The single crimp connector should allow for securement to both ground screws on
the enclosure. For NetIron MLX -8 and -4, use a grounding wire of at least 6 AWG. For the grounding lug, use UL-
listed Panduit crimp connector, P/N LCD6-10A, and two 10-32, PPH screws to secure the crimp connector to
chassis. The grounding position is located on the side of chassis adjacent ground symbol.
