Defect Generation; Test Channel - Wavetek ANT-20 Operating Manual

Concatenation Options
1.4.2.3

Defect generation

The following defects can be generated in addition to those described in Sec. 1.3.7, Page S-9.
Defect
LCD
VP-AIS
VP-RDI
VC-AIS
VC-RDI
Vx-AIS
Vx-RDI
1 LCD (Loss of Cell Delineation) is generated by uncorrectable header errors in ≥ 7
consecutive cells.
2 AIS: Alarm Indication Signal; VC: Virtual Channel; VP: Virtual Path
3 RDI: Remote Defect Indication
4 For Vx-AIS and Vx-RDI defects are inserted in the VP and VC in parallel.
Table S-8
1.4.2.4

Test channel

Cells
Header
UNI/NNI, VCI, VPI, PT and CLP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .settable
HEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . formed automatically
Payload
Pseudo-random bit sequences . . . . . . . . . . . . . . . . . PRBS 11, PRBS 15, PRBS 20, PRBS 23
Digital word . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 bits
Load profiles
Constant, Equidistant, Burst
Constant load profile
Load setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.976 to 149760 kbit/s
Resolution dependent on load range setting
14.976 to 1482.624 kbit/s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.976 kbit/s
149.76 to 14826.24 kbit/s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149.76 kbit/s
1497.6 to 149760 kbit/s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1497.6 kbit/s
S-12
Sensor function test
On / Off
1
yes
yes
yes
2
yes
3
yes
4
yes
4
yes
Additional defects
Single
yes
yes
yes
yes
yes
yes
yes
Specifications OC-12c/STM-4c
ANT-20/ANT-20E