Intec ARGUS Manual page 64

4 Operation on a PRI Access

Menu for selecting the bit pattern to be used for a MegaBERT:
In a BERT, the ARGUS will repeatedly send the following bit pattern. 

Display on the
ARGUS
2^15-1
2^15-1
inverted
2^20-1/QRSS
2^20-1/QRSS
inverted
Constant NULL
Constant ONE
64
Remark
32767-bit pseudo-random test sequence in accordance with ITU-
T O.150 5.3 (longest sequence of zeros = 15)
The ARGUS will send the bit pattern described above inverted.
1048575-bit pseudo-random test sequence in accordance with
ITU-T O.150 5.5 (longest sequence of zeros = 14)
The ARGUS will send the bit pattern described above inverted.
The ARGUS will only send nulls (zeros).
The ARGUS will only send ones.
ARGUS PRI