"Serial number of the terminal"
12 byte string as stored in EEPROM. Format is usually YYWWNNNHH where YY is the
manufacturing year, WW is the manufacturing calendar week NNN the sequence number in
that week and HH the hardware revision.
For EGScore devices the structure is TTT-YYWWNNNNHH-SS, where TTT is the device
type and SS is the software revision, i.e. the versions of OS and application installed in the
production. The rest is the same as above.
"Operating Time of the device"
The operating time of the device in seconds. The time is only updated every 6 minutes.