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Remote Operation Mode

Chapter5 Remote Operation Mode

IT6900 series power supply has three standard communication interface:

RS232, USB, GPIB, the user can choose to any one of them to

implement a communication with the computer.

5.1 RS232 interface

There is a DB9 connector at the rear of the power supply, when connect to

computer, you need to connect a cable with COM port on both side. To active

connection, you need to set the front panel composite key +

I-setI-set

key configuration settings the same as computer configuration settings.

RS-232 interface can be used to program all of the SCPI orders.

NOTE

The RS232 settings must match the settings in front panel system information. If any

change, please press +

I-setI-set

key.

RS-232 data format

RS-232 data is a 10-bit words which has a start bit and a stop bit. The start bit

and stop bit can’t be edited. However, you can select the parity items with

I-setI-set

key on the front panel. Parity options are stored in nonvolatile

memory.

Baud Rate

The front panel +

I-setI-set

button allows the user to select a baud rate

which is stored in the non-volatile memory: 4800 /9600/ 19200 /38400/

57600 /115200.

RS-232 connection cable

Use a RS232 cable with DB-9 interface, RS-232 serial port can connect

with the controller (eg PC). Do not use blank Modem cable. Table 2-2

shows the plug pins.

If your computer is using a RS-232 interface with DB-25 connector, you

need a adapter cable with a DB-25 connector at one end and the other

side is a DB-9(not blank modem cable)

ITech IT6922A User Manual

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