Block diagram for the ALMA Band 5 receiver. The cartridge is a dual-polarization receiver and employs 2SB SIS mixers covering the RF band of 163–211 GHz (with some requirements applicable for the extended RF range, 158–211 GHz). The green box encloses the internal Band 5 receiver components installed at the 110 K temperature stage, the magenta box at 15 K and the blue boxes contain components at 4 K physical temperature. The rest of the components are outside the frontend cryostat.