Using the STIX Ground Unit

The STIX ground unit (GU) is a partial replica of the STIX instrument stored in a clean room at PSI. The ground unit computer (GUC) can be accessed remotely and used to test telecommands, IORs, etc. on the GU before being used onboard STIX itself.

1 Required Software

In order to remotely access the GUC, you will need to install the following software locally:

• TeamViewer

2 GUC Interface Hierarchy

Interfacing the the GUC requires a hierarchy of GSE software all of, with the exception of TeamViewer, is installed on the GUC.

• CMDVS: Interfaces directly with the GU
• TSC: Accepts telecommands, e.g. as defined in an IOR, and passes them onto CMDVS to be executed by the GU
• STIX-SIRIUS: Provides a more user-friendly interface on top of TSC that enables small numbers of commands to be sent more easily. Also enables the status of the GU to be more easily and quickly monitored.
• TeamViewer: Software on local user machine that facilitates remote connection to the GUC.

3 How to Connect to the GUC

• Open TeamViewer
• Set the Partner ID to 1005807352, select "Remote Control" and enter the relevant password. This should log you into the GUC.
• You should see a Windows log in screen. In the TeamViewer banner at the top of the screen, click Actions -> Send Ctrl + Alt + Del and log in as cmdvs.

4 How to Test an IOR on the GU

• Identify the IOR file you wish to test. It must be a .tcl file.
  • To create a .tcl file from a .SOL file, load the .SOL into STIX-Starlet and click the .tcl button in the STIX-Starlet toolbar. Alternatively, you have just created the IOR and it is still open in STIX-Starlet, simply click the .tcl button.
• Upload the .tcl file to the GSE computer via the the TeamViewer banner at the top of the page. Click Files & Extras -> Open File Transfer.
  • In the window that pops up, select the file on your local machine via the file system on the left.
  • Select the location to which to transfer the file on the GSE computer via the filesystem on the right. You should pick D:/Personal Folders/YourName where YourName is a directory labelled with your name.
    • If you don't have a directory, create one by right clicking in the Personal Folders and selecting the appropriate option from the menu that appears.
  • Transfer the file by clicking the "Send" button above the left filesystem.
• • Transfer the file by clicking the "