wfMcT1BertTxOutputLevel 1.3.6.1.4.1.18.3.4.8.2.1.18

Specifies T1 transmit power level, in terms of DB while the T1 port is in BERT mode. The power levels translate into cable length as follows: 0.0dB -> 0-133 ft 0.5dB -> 133-266 ft 0.8dB -> 266-399 ft 1.1dB -> 399-533 ft 1.5dB -> 533-655 ft