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Functions and Features

• Keypad: Select the front panel [Shift]+[On/Off] (Trigger) button as the trig-

ger source;

• Bus: Select the remote interface command as the trigger source, such as

the *TRG command;

• Ext: Select the rear panel trigger signal interface TRIG± (IN status) as the

trigger source. Please refer to 4.2.4 Set the TRIG± Interface Status (Ext IO)

for detailed information about TRIG± interface status settings.

The procedures to set the menu item are as follows.

1. Press [Shift]+[V-set] (Config) to enter into the configuration menu interface.

2. Use left and right keys or rotate the knob to select Trig Source and press

[Enter] key to make the parameter in modification.

3. Rotate the knob to adjust the parameter.

4. After setting, press [Enter] key to confirm.

4.1.6 Output Lock Control

The IT-M3100D series power supply rear panel provides an output lock inter-

face Lock±. The user can disable the power output by shorting the Lock+ and

Lock– interfaces to prevent the from mishandling the power supply during the

test and causing damage to the DUT. The output can be re-enabled by remov-

ing the jumper or shorting clip between the Lock+ and Lock– connectors.

The figure below shows the short connection between the Lock± interfaces.

ITech IT-M3131D User Manual

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