Which MIB files are for TS 4 H MEI and TS 4 H? Dose any MIB provide the device serial number info?

I want to poll the Serial number. Software version and SNMP location of Digi TS 4 H MEI and TS 4 H by WUG. What MIB files do I need?

The MIB files can be found here:


The serial number can only be obtained from the sticker on the unit itself and is not programmed into the firmware.