metrotek Bercut-ET, Руководство по эксплуатации

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5.15 BERT 73
section 5.7).
•
Header — switch to Header menu.
Figure 5.79. Header menu
Settings correspond to one described in the subsection 5.4.1 and 5.4.2.
All test patterns used for measurements are in compliance with ITU-T
O.150 [7] standard.
Table 5.6. Test patterns
Pattern type Usage (recommended)
2e9-1
Error measurements on data circuits at
bit rates up to 14 400 bit/s.
2e11-1
Error and jitter measurements at bit
rates of 64 kbit/s and 64
× N kbit/s,
where N is an integer number.
2e15-1
Error and jitter measurements at bit
rates of 1544, 2048, 6312, 8448, 32 064
and 44 736 kbit/s).
2e20-1
Error measurements on data circuits at
bit rates up to 72 kbit/s.
2e23-1
Error and jitter measurements at bit
rates of 34 368 and 139 264 kbit/s.
2e29-1
Errors detection (for higher-speed data
links
2e31-1
(transmission rate is over 139 264
kbit/s)).
Bercut-ET. Operations manual