Installing the S8 Chassis
Enterasys S-Series S8 Chassis Hardware Installation Guide 3-13
Chassis Bonding and Grounding
Installing
the
chassis
as
described
in
this
chapter
meets
the
protective
earth
grounding
requirements
of
the
National
Electrical
Code
(NEC)
UL
60950
and
IEC
60950
standards.
However,
in
some
cases
it
is
necessary
to
use
an
alternative
grounding
method
at
installation
sites
that
must
meet
the
Telcordia
GR
‐
1089
Section
9,
Bonding
and
Grounding
Requirements,
or
national
deviations.
To
meet
these
requirements,
use
the
four
tapped
holes
located
on
the
rear
of
the
chassis.These
holes
meet
the
hole
grounding
bolt
pattern
requirements,
as
shown
in
Figure 3-10 Telcordia GR-1089 Grounding Hole Pattern
Alternate
grounding
requirements
when
a
connection
is
needed
between
the
chassis
and
the
enclosure
metalwork,
a
nearby
point
on
the
Central
Office
(CO)
Ground
system,
or
earth
ground.
The
connection
is
made
using
one
or
more
grounding
wires
(as
needed)
fabricated
from
an
8
AWG
(6
2
mm)
stranded
copper
wire.
To
fabricate
and
install
a
grounding
wire,
proceed
as
follows:
1.
Cut
an
8
AWG
(6
2
mm)
stranded
‐
copper
wire
to
length,
long
enough
to
reach
from
the
grounding
location
of
the
chassis
to
the
selected
grounding
location
on
the
CO
Ground,
earth
ground,
or
enclosure
metalwork.
2.
Install
a
listed
two
‐
hole
compression
‐
type
connector
on
both
ends
of
the
grounding
wire.
3.
Apply
a
suitable
antioxidant
to
the
chassis
grounding
location
and
unpainted
surface
grounding
location
on
the
CO
Ground
or
enclosure
metalwork.
4.
Connect
one
ground
cable
two
‐
hole
connector
to
the
chassis
using
two
of
the
1/4
‐
20
screws
shipped
with
the
chassis.
Connect
the
two
‐
hole
connector
at
the
other
end
of
the
cable
to
the
CO
Ground
or
enclosure
metalwork
using
user
‐
supplied
screws.
1
Ground screws
Summary of Contents for S4-Chassis
Page 2: ......
Page 12: ...x...
Page 16: ...xiv...
Page 20: ...Getting Help xviii About This Guide...
Page 28: ...Features 1 8 Introduction...
Page 62: ...Completing the Installation 3 32 Chassis Setup...