Glossary
0
0000:
Industry-standard all zeros test pattern.
1
100BaseFx:
Fast Ethernet; 100 Mbps on twisted pair copper.
1010:
Industry-standard alternating ones and zeros test pattern.
1111:
Industry-standard all 1s test pattern.
2
2e15-1, 2^15:
Industry-standard 215-1 pseudo random bit sequence. This signal is
formed from a 15-stage shift register and is not zero constrained. This pattern
contains up to 14 zeros in a row.
2e20-1, 2^20:
Industry-standard 2e20-1 pseudo random bit sequence. This signal
is formed from a 20-stage shift register and is not zero constrained. This
pattern contains up to 19 zeros in a row.
2e23-1, 2^23:
Industry-standard 2e23-1 pseudo random bit sequence. This signal
is formed from a 23-stage shift register and is not zero constrained. This
pattern contains up to 22 zeros in a row.
2e31-1, 2^31:
Industry-standard 2e31-1 pseudo random bit sequence. This signal
is formed from a 31-stage shift register and is not zero-constrained. This
pattern contains up to 30 zeros in a row.
A
Avg:
Average
B
BERT:
Bit Error Rate Test.
C
CFI:
Canonical Format Indicator
CJPAT:
Continuous Jitter Test Pattern is used for jitter measurements. It is intended
to expose a receiver’s CDR (Clock and Data Recovery circuit) to large
instantaneous phase jumps. The pattern alternates repeating low transition
density patterns with repeating high transition density patterns.
CRC:
Cyclic Redundancy Check
167
Summary of Contents for XTT 5000
Page 1: ...XTT 5000 User s Manual...
Page 2: ......
Page 6: ......
Page 36: ......
Page 55: ...Throughput Testing L2 BERT Diagram Home Layer 2 BERT Where do you want to go next Home 49...
Page 58: ...XTT 5000 User s Manual Throughput Stream Results Throughput Test Setup Working Desktop Home 52...
Page 61: ...Throughput Testing Home 55...
Page 67: ...Throughput Testing Throughput Aggregate Results Throughput Stream Results Home 61...
Page 81: ...Throughput Testing Working Desktop Home 75...
Page 83: ...Throughput Testing Home 77...
Page 116: ......
Page 142: ......
Page 147: ...Save Features 141 RFC2544 NE Applications IP Test Setup Monitor Setup Loopback Test Setup Home...
Page 148: ......
Page 172: ......