Implementations of techniques and systems are disclosed for detecting a fiber fault in a point-to-point optical access network based on optical time domain reflectometry measurements. The container includes a multiple sidewall thickness throughout a majority of the various sidewalls to add to stacking strength and stability of the container. When transmission data is encoded, the RV parameter bit-number setting section sets the number of bits used for signaling the RV parameter to decrease as the encoding rate of the first transmission is decreased and sets the RV parameter based on the number of bits. The cardiac harness and electrodes are delivered and implanted on the heart by minimally invasive access. The adjustment arrangement comprises a turn plate, an upper turn plate and a gear wheel adapted to be placed dependent on a lens used. A manual drive shaft is connected to the back-up roller through a torque multiplying gear and pinion transmission for manual operation of the tool.