Additional Device Properties. This MIB Object is created as a Bits Mask, when the corresponding Bit says about the specific property. value=0 : If no additional properties exist. value=1 : If Device have a Redundant Power Supply. value=2 : If Device can include the High Density Fibre Ports. value=4 : If Device have a Direct Current (DC) Power Supply for extreme temperature conditions. value=8 : If Device is of the OptiSwitch_100FX Type (fixed schema of the OptiSwitch_400 Device). value=16: If Device is of the Cheap Modification. value=32: If Device is of the Expensive Modification. value=64: If Device is of 'Telco' SubType. value=128: If Device is built to working in the Extended Temperature range. value=256: If If Device is built to working in the Extra Extended Temperature range. value=512: If Device supports PTP slave synchronization. For example: If Device have a the both properties (Redundant Power Supply & High Density Fiber Ports), value=3 will be responded on the GET SNMP command (etc...).