- DDSTimeNet-2.1 – 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)
- DDS Timenet Message Board – PC software for Message Board.
- USB to RS485 Driver – Install driver to connect clock to USB serial adapter (only works for DDS-tested USB cables)
- Legacy USB Driver – Legacy USB Driver for products older than 2010.
- For Standalone Clocks (BSA), Calendar Clocks (BCL/BJL), and Network Clocks (MGP/BRS)
- For Time Zone Clocks with White Vinyl Zone Names (BTZ-VX)
- For Time Zone Clocks with Electronic Zone Names (BTZ-EXX)