After having connected the ACU to a power supply and set the ACU’s IP address, you can access the ACU’s user interface. To do this, start your favorite web browser program (Internet Explorer, Netscape Navigator, Opera or what else program you prefer). At the address field, where you normally enter the URL of a web page you want to see, type in the IP address of the sat-nms ACU you want to control.

The ACU shows a web page consisting of a navigation bar at the left side of the browser window and the actual antenna pointing in the main part of the window. The readings automatically refresh once a second. (this may be adjusted on the setup-page).

The navigation bar at the left contains a couple buttons which build the ACU’s main menu:

• Pointing : This button switches back to the main page you already see when you connect to the ACU. This page displays the actual antenna pointing together with some status information. You also use this page to move the antenna to a certain pointing given as azimuth / elevation values.
• Target : By clicking to this button you switch to the ‘Target’ page where you can store and recall the antenna pointing for up to 200 satellites.
• Orbital Data : By clicking to this button you switch to two pages where you can store and recall up to 99 sets of TLE ephemeris data and 99 sets if I11 satellite data. At the Tracking page you can assign TLE/I11 data sets to the satellite to be tracked.
• Tracking : sat-nms ACUs with the tracking option installed offer the tracking mode and tracking fine tune parameters on this page.
• Test : By clicking to this button you switch to the ‘Test’ page. The ‘Test’ page shows the low level I/O signals of the ACU. It helps you to install the ACU or to identify a malfunction of peripheral components.
• Setup : This button switches to the ‘Setup’ page which lets you inspect or change less common parameters which usually are set only once to adapt the ACU to it’s working environment.
• Info : After a mouse click to this button, the ACU outdoor module shows a table with information like the serial number of the device or the revision ID and compilation date of the software.
• Help : Clicking to this button shows the on-line version of this user manual
• Step Move : Clicking to the buttons in this area moves the antenna a small step to the indicated direction. For azimuth and elevation ‘small step’ and ‘large step’ buttons are provided. A ‘small step’ is the angle defined with the ‘XX step delta’ parameters at the Setup page, a ‘large step’ is ten times this value. With the polarization axis, steps always are 1°.
• STOP : Clicking to the STOP button immediately stops all motors. The ACU indicates a fault. A click to the RESET button releases this fault.
• RESET : The RESET button lets the ACU acknowledge any motor diver faults by activating the reset-circuit to the motor drivers for 800 msec. All faults internally latched by the ACU are cleared and the target pointing values are set to the values actually read from the position sensors.
• STANDBY : The STANDBY button puts the pointing loop of all axes to ‘standby’ mode: Differences between measured and commanded value do not cause the motors to be driven in this mode. Standby mode can be used for maintenance purposes or to move the antenna by actuating the frequency inverters directly by hardware circuits. To leave standby mode, click the STANDBY button again or RESET.