Interface - ITech IT-M3131D User Manual

2.7.5 RS-232 Interface
When the optional interface card is RS232+CAN interface (IT-E1207), the fol-
lowing can help users quickly understand the steps required to connect the RS-
232 interface. The figure below shows a typical RS-232 interface system that
connects to your computer using an RS-232 cable.
Definition of RS-232 Pins
The definition of RS-232 pins are as follows.
RS-232 Connection
Directly connected to the computer, as shown below:
The rear panel shown in the figure is only an example. The actual appear-
ance of the rear panel is subject to the specific instrument.
IT-E1207
Copyright © Itech Electronic Co., Ltd.
Inspection and Installation
Pin Description
1 TXD, transmit data
2 RXD, receive data
3 GND
4 CAN_H
5 CAN_L
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