Instrument Introduction 
  Copyright ©ITECH Electronic Co., Ltd. 15 
Select Menu Item 
The knob can also be used to view menu items. In the menu item display 
interface, turning the knob clockwise indicates that the next menu item is 
selected, and turning the knob anticlockwise indicates that the previous menu 
item is selected. 
Confirm settings 
After completing the value setting or selecting a menu item, pushing the knob 
acts like pressing [Enter] key to confirm the operation. 
2.5 Rear Panel 
The rear panel of the IT7900 series 3U model is shown below.   
 
 
Ground screw for making chassis ground 
connections. 
AC or DC output terminals and chassis ground 
terminals, used to connect DUT. 
 
 
 
SL+ and SN- are remote sense terminals, used 
for maximizing measurement accuracy.
 
Optional interfaces: (Plastic plugs are inserted 
by default when the user does not purchase the 
interface.)
 
The optional interface as follows:
 
z GPIB 
z RS-232/ Analog interface 
/CAN
 
 communication interface CAN-H and 
LAN communication interface