Tonghui TH9310 Series - RS232 C Serial Interface; USB Serial Communication Interface; HANDLER Interface; SIGNAL Interface

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3.2.7 RS232C serial interface
Serial communication, realize the communication with the computer.
3.2.8 USB serial communication interface
Realize the communication with the computer. Through this interface, the computer can control the
instrument by using the control instruction set.
3.2.9 HANDLER interface
Compared to PLC interface, the HANDLER interface has no INTERLOCK function in interface signal.
It is more convenient than PLC interface to use 9-core D-type jack to output. It is appropriate for the
connection of general control circuit for multiple instruments.
 TEST：Output synchronized-signal control when high voltage output is started.
 START：Input the starting signal for starting high voltage output, corresponding to START signal
on the front panel.
 RESET：Input the reset signal for stopping high voltage output, corresponding to STOP signal on
the front panel.
 PASS：The output pass signal of the instrument, corresponding to PASS instruction on the front
panel.
 FAIL：The output fail signal of the instrument, corresponding to FAIL instruction on the front
panel.
3.2.10 SIGNAL interface
It is the interface for online protection and interior 24V power output.
 INTERLOCK：
(Port: (5) INTERLOCK + -- (6) COM) valid in SHORT.
It is the online locking signal of the instrument and short circuit jumper connection is used by
default. If disconnect, starting output is not allowed.
 DC 24V Power:
(Port: (COM (1, 2) 24V – (3, 4) GND)
Output voltage is 18.5VAC rectified output, without voltage regulation function
It is used for requirement of indicator light and other control power supply. It is recommended to
use a total current smaller than 500mA.
3.3 Multichannel module declaration
Multi-channel Output is an internal high-voltage switching module attached at the bottom of the
instrument.
Through multi-channel output module, multiple test points of the components can be connected with
multiple channels at a time. During testing, the instrument can be set to control the channel switch.
Controllable testing can be achieved by connecting the corresponding port to withstand voltage test
terminal.