Site
Requirements
For
Further
Reference
The
following
publications
contain
information
on
determining
attenuation
and power budget
T1E1
.2192-020R2
ANSI
the Draft
American
National
Standard
for
Telecommunications
entitled
Broadband ISDN
Customer
Installation
Interfaces
Physical
Layer
Specification
Power
Margin
Analysis
ATT
Technical
Note
TN89-OO4LWP
May
1989
HSSI
Connections
The
HSSI
standard
BIAJTIA-612/61
specifies
maximum
cable
length
of
50
feet
15
meters
for
52
Mbps HSSI
connections
The
typical
nominal
cable
length
between
the
HIP
and
the
DSU
is
feet
meters
The
HSSI
interface
cable
comprises
25
twisted
pairs
and
50-pin
plug
at
each
end
Both
DTE
and
DCE
ports
on
the
HIP
and
the
DSU
are
50-pin
receptacles
The
HSSI
interface
cable
is
similar
to
SCSI-Il-type
small computer
systems
interface
cable however
the
HSSI
cable
specification
is
more
stringent
than
that
for
SCSI-TI
Note
Substituting
SCSI-type
cable
to
connect
the
HSSI
interface
may
prevent
proper
operation
of the interface
Token
Ring Connections
Currently
there
is
no
maximum
transmission
distance
defined
for
IEEE
802.5
Token Ring
networks
Shielded
twisted-pair cabling
is
most commonly
used
for
rates
of
16
Mbps
and
either
shielded
or unshielded
twisted-pair cabling
is
used
for
rates
of
and
Mbps
When
planning
your
connections
remember
that
twisted-pair cabling
is
more
susceptible
to
interference
than
other types
of cabling
so plan
the
total
network
length
and
repeater
spacing
accordingly
Equipment
Racks
The
rack-mounting
hardware
included
with
the router
is suitable
for
most
19-inch
equipment
racks
and
Telco-type
racks
Ideally
you
should
be
able
to
access
both
the interface
processor
and
non-interface
processor
ends
of the router
without
having
to
remove
it
from
the
rack
The
router
can
be mounted
in
the rear of
rack
Before
using
particular
rack check
for obstructions
such
as
power
strip
that
could
impair
rack-mount
installation
If
power
strip
does
impair
rear
rack-mount
installation
remove
the
power
strip
before
installing
the router
in the
rack
then
replace
it
after
the chassis
is
installed
As
an
alternative
the router
can
be mounted
on
an
equipment
shelf
provided
that
the rack
dimensions
allow
the router
to
be
secured
to
the shelf
and
the overall
configuration
permits
safe
installation
and
access
however
we recommend
rack-mount
installation
for the Cisco
7513
Figure
2-1
shows
the chassis footprint
and
outer
dimensions
Preparing
for
Installation
2-13
Summary of Contents for 7513 Series
Page 1: ......
Page 11: ...Cisco 7513 Hardware Installation and Maintenance ...
Page 121: ...Site Log 2 56 Cisco 7513 Hardware Installation and Maintenance ...
Page 162: ...Troubleshooting the Processor Subsystem 4 10 Cisco 7513 Hardware Installation and Maintenance ...
Page 266: ...Interface Processor LEDs B 16 Cisco 7513 Hardware Installation and Maintenance ...
Page 270: ...C 4 Cisco 7513 Hardware Installation and Maintenance ...
Page 288: ...18 Cisco 7513 Hardware Installation and Maintenance ...