User guide
DS3 Test
Multi Protocol Test Set 245
Setup Configuration
³ BERT: Select the test pattern that will be generated. Choices are OFF,
2^23-1, 2^20-1, 2^15-1, QRSS, 1010, 1111, 1100, TxIDLE, TxAIS,
TxRAI, 1000, and 3in24. The default setting is OFF.
OFF: Disables the BERT pattern.
2^23-1 is a 23 stage shift register, emulates random data.
2^20-1 is a 20 stage shift register, emulates random data.
2^15-1 is a 15 stage shift register, emulates random data.
QRSS industry standard Quasi-Random Signal is formed from 20 Bits
with max of 14 consecutive zeros.
1010 simulates RAI in non-ANSI elements.
1111 simulates AIS in non-ANSI elements.
1100 simulates IDLE in non-ANSI elements.
TxIDLE generates IDLE as per ANSI standard.
TxAIS generates AIS as per ANSI standard.
TxRAI generates RAI as per ANSI standard.
1000 test B3ZS 1000…1000..1000.
3in24 is three ones in 24 bits used to stress AMI lines and clock
recovery (0100 0100 0000 0000 0000 0100).