Testing
8-3
8.1.2 Internal BERT Configuration
The Internal Bert Configuration allows y ou to configure the BERT chip (if enabled) to generate sp e-
cific patterns and error rates. Normally, the error rate is left at None, but the BERT pattern can be
transmitted with a known error rate to confirm other test equipment accuracy.

8.1.2.1 Loopback Configuration Settings

You can change configurations at any time.
To update the BERT configuration:
Select configurations for patterns & error rate.
Click Update BERT Config.
Field Input
Pattern All Ones, All Zeros, Alternating I/0, 1 in 8, QRSS, 511, 2047, 215-1,
220-1, 223-1,
Error Rate None, 10-1 - 10-7