Eye, Mask and Eyeline Mode Measurement Tutorials
Testing to a Mask
These standard masks are listed as follows.
Mask Transmitter Bit Rate
DS1 1.54400 Mb/s
PDH 2.04800 Mb/s (xed voltage)
DS1C 3.15200 Mb/s
DS2 6.31200 Mb/s
PDH 8.44800 Mb/s (xed voltage)
PDH 34.3680 Mb/s (xed voltage)
DS3 44.7360 Mb/s
STMO/OC1 51.8400 Mb/s
FDDI 125.000 Mb/s
100B
ASE-FX
125.000
Mb/s
FC133
132.813
Mb/s
PDH
139.000 Mb/s
(xed
voltage)
DS4
139.264
Mb/s
STM1/OC3
155.520
Mb/s
FC266
265.625
Mb/s
OC9
466.560
Mb/s
FC531
531.250
Mb/s
STM4/OC12
622.080
Mb/s
OC18
933.120
Mb/s
FC1063
1.06250
Gb/s
OC24
1.24416
Gb/s
GIGABIT
ETHERNET
1.2500
Gb/s
OC36
1.86624
Gb/s
STM16/OC48
2.48832
Gb/s
OC192 9.95328 Gb/s
NOTE
The four
PDH
masks
listed
above
are
xed-voltage
masks.
Industry
standards
for
these masks
require
the signal
be
tested
to
xed
voltage
limits.
These
masks
do
not
scale
vertically when
the
mask
is
aligned. Refer to information in \Mask T
est Menu" in Chapter 6 for
how to use xed-voltage masks.
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