Inspection and Installation
5. Rotate the knob to select I/O and press [Enter].
6. Press the Left/Right key to select GPIB and press [Enter].
7. Press the numeric keys to set the GPIB address and press [Enter].
2.5.5 RS–232 Interface (Optional)
The RS-232 interface shares the same communication card (IT-E177) with the
analog function.
Definition of RS-232 Pins
The definition of RS-232 pins are as follows.
When using the RS-232 interface for communication, connect the pin 1, pin 2,
and pin 3 of the IT-E177 to the PC. The pin description is as follows:
Pins Description
1 TXD, transmit data
2 RXD, receive data
3 DGND, ground
RS–232 Configuration
When you purchase the interface accessory and successfully insert it into the
corresponding position on the rear panel of the instrument, the RS–232 menu
item will appear in the System menu. The specific steps are as follows:
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