The Telkom Jupiter PABX is an old PABX from the 1990s, but there may be some people with them still in service.
They were very good and hardy systems.
Since I found the instruction manuals were so difficult to find, I thought I would make them available here for anyone else who may want them, so here are the files for download.
Here is a list of all the PDF files for download:
Attendant Console
Supervisor Guide
Telephone User Guide
Terminal User Guide
Terminal Reference Card
