Clock Generator; Overhead Generator; Anomaly Insertion; Defect Generation - Wavetek ANT-20 Operating Manual

Optical Interfaces; STM-16/OC-48
4.1.1

Clock generator

Drop&Insert
As specified in the "Specifications" of the mainframe instrument.
Through Mode
In Through Mode, clock generation is always derived from the receive signal clock.
No signal offset is possible in this operating mode (see also the "Specifications" of the
mainframe instrument).
4.1.2

Overhead generator

Drop&Insert
As specified in Sec. 1.3.4, Page S-26.
Through Mode
The "From Rx" function can be set in addition to the functions described in
Sec. 1.3.4, Page S-26 for all bytes except bytes B1, B2 and M1.
4.1.3

Anomaly insertion

Drop&Insert
As specified in Sec. 1.3.5, Page S-28.
Through Mode
Anomaly insertion in bytes B1, B2 and MS-REI/REI-L.
Insertion limits are specified in Sec. 1.3.5, Page S-28.
4.1.4

Defect generation

Drop&Insert
As specified in Sec. 1.3.6, Page S-28.
Through Mode
No direct defect generation is possible.
Tip: Alarms (defects) in the SOH can be generated by manipulating the SOH bytes.
4.1.5

Measurements

There are no restrictions on measurements (see Sec. 2.3, Page S-33).
S-38
ANT-20SE
Specifications STM-16, OC-48