GPT-9000 Series User Manual 
16 
RETURN terminal 
GPT-9801/9802 
/9803 
The RETURN terminal is the 
return terminal for all tests. 
 
For GB testing, the RETURN 
terminal is also the SENSE L 
terminal.  
RETURN/ 
SENSE L,  
SENSE H, 
SOURCE L, 
SOURCE H 
terminal 
(GPT-9804) 
SENSE  H
Rx
SENSE  L
SOURCE  LSOURCE  H
RETURN
The RETURN terminal is 
used for IR, DCW and ACW 
tests. For GB tests, it is used 
as the SENSE L terminal. 
SENSE H terminal for GB 
tests. GPT-9804 only. 
SOURCE L terminal for GB 
tests. GPT-9804 only. 
SOURCE H terminal for GB 
test. GPT-9804 only. 
The scroll wheel is used to edit 
parameter values. 
Used to enter the MANU Utility or 
Common Utility menu. 
Used to start editing 
MANU/AUTO tests as well as 
save settings and parameters. 
The MANU/AUTO key is used to 
select manual tests (MANU) or 
automatic tests (AUTO).