Each bit of this value set to '1' indicates a specific status condition in the module. Octets are numbered in the order in which they appear in the PDU. Bits are numbered from the most-significant leftmost bit in the octet (bit 0) to the least-significant rightmost bit (bit 7). Cajun numbering continues across octets, so that octet 1 bit 0 is called bit 8 in the Cajun scheme. That number is also shown below, with the octet value for each single bit set. Cajun Octet Octet bit# bit# value Meaning 0 0/0 0x80 Red LED is on. 1 0/1 0x40 Module controlled by ACP on communications controller. 2-7 0/2-7 Unused. 8-15 1/0-7 Unused.