This afternoon we performed the following actions on SIB2:

• We installed attenuators on the ADC channels that are used to acquire the H, V and sum signals of the B2 QD1 and QD2 quadrants (ADC mezzanine SN62). The attenuation factor is equal to 2.1. The gain set for those channels in the SIB2_dbox_bench configuration file has been updated accordingly.
• We installed 2 absorbing glass beam dumps on SIB2 in order to dump the light reflected by the B2 quadrants (see attached pictures). The total weight added on the bench is equal to 387 g.