Site
Requirements
Fiber
FDDI
Connections
The
FDDI
standard
sets
the
maximum
distances
between
stations
to
the
fiber
lengths
shown
in
Table
2-5 The
maximum
circumference
of the
FDDI
network
is
only
half the specified distance
because
of signal
wrapping
or
loopback
during
fault
correction
The
standard
allows
maximum
of
500
stations
Both
single-mode
and multimode
transceiver
types
provide
11
dB
of
optical
power
Table
2-5
FDDI
Maximum
Transmission
Distances
Transceiver
Type
Max
Distance Between
Stations
Single-mode
6.2
miles
up
to
101cm
Multimode
1.2
miles
up
to
1cm
MultiChannel
El
and
Tl
Connections
Following
are the
MIP
El
specifications
Transmission
bit
rate
2048
kbps
50
ppm
Output
port
specifications
see
G703/Section
6.2
ITU-T
specification
Input
port
specifications
see G.703/Section
6.3
ITU-T
specification
Jitter
attenuation
starting
at
hertz
Hz
which
meets
or exceeds
G.823
for
El
Following
are the
MIP
Tl
specifications
Transmission
bit
rate
1.544
kilobits
per second
kbps
50
parts
per million
ppm
Output
pulse
amplitude
3.0
volts
0.6V measured
at
DSX
Output
pulse
width
324 nanoseconds
ns
54
ns
Compiles
with
all
ATT
Accunet
TR
62411
specifications
Serial
Connections
As
with
all
signaling
systems
serial
signals
can
travel
limited
distance
at
any
given
bit
rate
generally
the
slower
the
baud
rate
the greater
the distance
Table
2-6
shows
the standard
relationship
between baud
rate
and
distance
for
EIA/TIA-232
signals
Table
2-6
IEEE
Standard
EIA/TIA-232C
Transmission
Speed
versus Distance
Rate
bps
Distance
Feet
Distance
Meters
2400
200
60
4800
100
30
9600
50
15
19200
25
7.6
38400
12
3.7
56000
8.6
2.6
2-8
Cisco
7513
Hardware
Installation
and Maintenance
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 ...