hmSysGroupMap 1.3.6.1.4.1.248.14.1.1.4

This string represents the current configuration of the chassis, encoded as an octet string. Each module is represented by a single octet. If the value of a single octet is the ascii representation of the character '1', it indicates that the module represented by that octet is present, if '0', the module is absent. The number of octets in the string is given by hmSysGroupCapacity. If the value of this variable changes, a hmGroupMapChange trap is sent.