DDSTimeNet-2.5 – FOR CLOCKS MANUFACTURED ON OR AFTER 05/2019 PC software for ERR time zone clocks with electronic LED zone names.
DDSTimeNet-2.1 – FOR CLOCKS MANUFACTURED BEFORE 05/2019 PC software for ERR time zone clocks with electronic LED zone names.
DDSTimeNet-M-2.1 – PC software for ERR time zone clocks with electronic LED zone names and rotating zones capability. (Denoted with M in model part number)