Cisco MGX MGX 8800 Hardware Installation Manual page 295

Chapter 3 Preparing for Installation
Warning Never attempt to lift the chassis with the handles on the power supplies, fan trays, or the switching
modules. These handles are not designed to support the weight of the chassis. Using them to lift or
support the chassis can result in severe damage to the equipment and serious bodily injury.
Statement 278
Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
precautions to ensure that the system remains stable. The following guidelines are provided to ensure
your safety:
—This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
—When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the
heaviest component at the bottom of the rack.
—If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing
the unit in the rack.
Class 1 laser product.
Warning
Before performing any of the following procedures, ensure that power is removed from the DC
Warning
circuits. To ensure that all power is removed, locate the circuit breakers or fuses on the DC power
lines that service the DC circuits. Turn OFF the DC power line circuit breakers and remove the DC
power line fuses. Statement 322
Do not reach into a vacant slot or chassis while you install or remove a module or a fan. Exposed
Warning
circuitry could constitute an energy hazard. Statement 206
Warning Blank faceplates and cover panels serve three important functions: they prevent exposure to
hazardous voltages and currents inside the chassis; they contain electromagnetic interference (EMI)
that might disrupt other equipment; and they direct the flow of cooling air through the chassis. Do not
operate the system unless all cards, faceplates, front covers, and rear covers are in place.
Statement 1029
This equipment is intended to be grounded. Ensure that the host is connected to earth ground during
Warning
normal use. Statement 39
For personal safety, the ground wire must connect to safety (earth) ground at both the equipment and
Warning
supply side of the DC wiring (unless the local electrical code requirements are different).
Statement 223
Releases 2 - 5.2, Part Number OL-4545-01, Rev. H0, May 2006
Cisco MGX 8800/8900 Series Hardware Installation Guide
Safety Requirements
3-3