Cisco 7000 Series Hardware Installation And Maintenance page 69

Recommendations
Safety
Follow
Before
power-off
Disconnect
Do
Never
Do
unsafe
Carefully
extension
In addition
from
Never
Never
locations
Never
Use
Electrostatic
Preventing
Electrostatic
improperly
interface
Electromagnetic
the carrier
antistatic
the handles
by
Caution
processors
for the
Following
7000 Hardware
2-4 Cisco
these basic
guidelines
beginning any procedures
room
for the
switch
power and
external
all
when
work
not alone
potentially
assume has
that
power
not perform action
any
examine your work
and
cables
missing
use the guidelines
power source but
still
install
telephone wiring
install
jacks
telephone
touch uninsulated
telephone
network
disconnected the
at
caution when
installing
Damage
Discharge
ESD
discharge
can
handled result
each
comprise
processors
interference
the metal
Although
whenever
handling
strap
and
the
carrier
the captive
Always
tighten
See 1-7
Figure
system and
ensure
to
help
for preventing
are guidelines
Always use an ESD-preventive
contact
When
interface
removing
processors
on
installation screws an installed
1-21 When
internal
replacing
example the arbiter connect
frame
inner
exposed
that is
and Maintenance
Installation
when
with
working any electrical
requiring access
to
which
in
working
are
you
cables before
installing
hazardous conditions
been from
disconnected
creates potential hazard
that
area for possible hazards
grounds
safety
when
follow
that working
connected
to
telephone wiring
storm
during lightning
wet
in locations unless the jack
wires or terminals
interface
or
modifying
telephone
when
which
damage
occurs
in or intermittent failures
complete
board
circuit
printed
EMI
shielding connectors
the boards
carrier to
helps protect
RP
SP SSP
the
or
touch the boards
never
only
edges
screws
installation
These
screws accidental
prevent
the bus connectors
that
ESD
damage
wrist or ankle
strap strap
the
connect equipment
interface
processor
are accessible
that
components
the
an
to unpainted
strap
when
removed
the panels are
equipment
the chassis interior locate
chassis
or removing
exist
check
circuit always
makes
the
or
to
people
such moist floors ungrounded
as
with
that
any equipment
network
or other
cabling
is designed
specifically
unless the telephone
line
lines
electronic cards
or components
The RP SP
or
fixed metal carrier
in
that is
and
handle are
integral
ESD
from
use
Handle
or interface
processors
or connector pins
RP SSP
SP and
on
or interface
removal
provide proper
seated the
in
are properly
and makes
ensure
that
it
end one
of the
to
strap
See
or Figures
power
supply
from
the front of the chassis
inner surface of the chassis
the
emergency
equipment
power
disconnected
is
for
wet
been
has
are
SSP and
of
components
preventive
the
carriers
grounding
backplane
skin
good
of the captive
and
1-6
for
such the
as