English: The Common Berthing Mechanism (CBM) connects one pressurized module to another pressurized module on the U.S. segment. The CBM has an active and a passive half. The active half contains a structural ring, capture latches, alignment guides, powered bolts, and controller panel assemblies. Only the active half of the CBM is connected to power and data. The passive half has a structural ring, capture latch fittings, alignment guides, and nuts. During the installation of a module that uses CBM, a robotic arm moves the module with the passive half into the capture envelope of the active half. Following this, the latching process begins. .Similar to the CBM active half is the Manual Berthing Mechanism (MBM). The MBM serves as a temporary attachment point and is located on the Z1 truss segment. The MBM is manually operated by an EVA crew person and can be mated with any passive CBM.