A 'sparse' table containing device info objects for installed and (possibly) active devices on this host system, augmenting the basic entries in the 'hrDeviceTable' of the IETF Host Resources MIB (RFC 2790). Usage: Although this group is Mandatory in this MIB module, this table is 'sparse' because conforming management agents need NOT implement an entry in 'xcmHrDevInfoTable' for ALL of the installed (and instrumented) devices in 'hrDeviceTable'. Usage: Conforming management agents SHALL implement an entry in 'xcmHrDevInfoTable' for the following device types (if they are installed devices in 'hrDeviceTable'): 'hrDevicePrinter' (from IETF Host Resource MIB, RFC 2790); and 'xcmHrDeviceHostSystem', 'xcmHrDeviceScanner', 'xcmHrDeviceCopier', 'xcmHrDeviceFax', and 'xcmHrDeviceMailbox' (from XCMI HRX TC).