CMU  Reset of Instrument Settings (RESET Key) 
1100.4903.12 4.3  E-10 
Reset of Instrument Settings (RESET Key) 
The popup window Reset sets the instrument settings in all or some function groups and test modes to 
their default values. It is opened via the RESET key (CONTROL keypad). 
Note:  A reset of the instrument does not necessarily mean that the current instrument settings 
are lost. The CMU can store the settings in a configuration file and re-use them in a later 
session; see section Saving Configurations (Data – Save) on p. 4.22 ff..  
 
RESET
 
 
Fig. 4-3  Popup window Reset 
 
Selection of the 
settings 
All function groups and test modes available on the instrument are arranged in a 
tree view. When the popup is opened, this configuration tree is expanded and the 
active function group and test mode is selected.  
Nodes containing subnodes (e.g. function groups containing the test modes Non 
Signalling and Signalling) are marked with rectangular symbols, lowest-level nodes 
(e.g. the individual test modes within a function group) with smaller, quadratic 
symbols:  
  The node is deselected 
  The node is partially selected, i.e. some but not all of the 
subnodes are selected 
  The entire node is selected, i.e. all of the subnodes are selected 
The controls in the Reset window are manipulated with the roll-key, the cursor keys 
and the ENTER key:  
    Toggle between the Cancel and the Reset buttons 
    Toggle between the control buttons (Cancel, Reset) and the tree 
view 
Roll-key  Toggles between the Cancel  and the Reset  buttons (when 
turned) or activates a button (when pressed). In the tree view, 
the roll-key moves the control frame up and down (when turned) 
or expands/compresses a node (when pressed). Pressing the 
roll-key on a lowest-level node selects or deselects the node. 
ENTER  Activates a button or selects/deselects a node including all 
subnodes.