Keysight M8000 Series of BER Test Solutions User Guide 651
Appendix 11
FDDI
FiberChannel/Gigabit Ethernet
Pattern Description
FDDI_Jitter_bit The Fiber Distributed Data Interface (FDDI) data
dependent jitter test pattern is used for testing FDDI
components or physical links. The pattern is 1280
bits long and is transmitted continuously during the
test by repeating the pattern. The sequence causes a
near worst case condition for inter-symbol
interference and duty-cycle, baseline wander.
FDDI_Wander_bit The FDDI baseline wander test pattern is used to test
FDDI components for the effects of a change in the
average DC level of the signal. The first 45,000 bits
are of the code group (01010); the last 45,000 bits
are of the code group (10101).
FDDI_Wander_b8b10 The Fiber Distributed Data Interface (FDDI) data
dependent jitter test pattern is used for testing FDDI
components or physical links.
Pattern Description
CJTPAT_b8b10 This Fiber Channel Compliant (JTPAT) pattern for jitter tolerance is
packaged into a Fiber Channel frame.
CJTPAT_bit This Fiber Channel Compliant (JTPAT) pattern for jitter tolerance is
packaged into a Fiber Channel frame.
CRPAT_b8b10 This Fiber Channel Compliant (RPAT) pattern for jitter generation is
packaged into a Fiber Channel frame.
CRPAT_bit This Fiber Channel Compliant (RPAT) pattern for jitter generation is
packaged into a Fiber Channel frame.
CSPAT_b8b10 This Fiber Channel supply noise (SPAT) pattern is packaged into a
Fiber Channel frame for use in system level tests.
CSPAT_bit This Fiber Channel supply noise (SPAT) pattern is packaged into a
Fiber Channel frame for use in system level tests.
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