User Manual
  GETTING STARTED 
21 
Line voltage input 
220
230
100
120
Line voltage input: 
100/120/220/230VAC ±10% 
Line voltage fuse 
220
230
100
120
Line voltage selector and fuse: 
GPT-98XX: 
100V/120V 
T5A 250V 
220V/230V 
T2.5A 250V 
GPT-99XX/99XXA: 
100V/120V 
T10A 250V 
220V/230V 
T6.3A 250V 
Optional GPIB 
port 
GPIB
Optional GPIB interface for remote 
control. 
HIGH VOLTAGE 
output terminal 
GPT-99XX /99XXA 
CAUTION
HIGH VOLTAGE
MAX.
5.0 kVAC
6.0 kVDC
The HIGH VOLTAGE 
terminal output is used for 
outputting the testing 
voltage. 
 WARNING 
USE EXTREME CAUTION. 
Do not touch the HIGH VOLTAGE terminal 
during testing. 
RETURN terminal 
GPT-9901A/9902A/ 
9903/9903A 
RETURN
The RETURN terminal is 
used for IR, DCW and ACW 
tests. 










