Specifications

GPIB CAPABILITIES OF THE POWER SUPPLY
All Power Supply functions except for setting the GPIB address are programmable over the GPIB.
GPIB Address
The power supply operates from a GPIB address that is set from the front panel. To set the GPIB address,
press the UTILITY (LOCAL) key on the front panel, choose “GPIB ADDRESS” and press ENTER key.
Choose an address and press ENTER key. Press CLEAR key to go back to the previous option. The GPIB
address is stored in non-volatile memory.
RS-232 CAPABILITIES OF THE POWER SUPPLY
The power supply provides an RS-232 programming interface. All SCPI commands are available through
RS-232 programming. When the RS-232 interface is selected, the GPIB interface and Ethernet interface
should not be operated. The EIA RS-232 Standard defines the interconnections between Data Terminal
Equipment (DTE) and Data Communications Equipment (DCE). The power supply is designed to be a
DTE. It can be connected to another DTE such as a PC COM port through a null modem cable.
NOTE: The RS-232 baud rate settings in your program must match the settings specified in the front
panel. If you need to change the baud rate setting, press the front panel UTILITY (LOCAL)
key, select “RS-232 SPEED” and press ENTER. Select the baud rate and press ENTER key.
Press CLEAR key to go back to the previous option. The baud rate is stored in non-volatile
memory.
RS-232 Flow Control
The RS-232 interface flow control options are default set (fixed) for the power supply as following:
x Parity: NONE
x Data bit: 8
x Stop bit: 1
x Start bit: 1
x XON-XOFF: OFF
x RTS-CTS: OFF
RS-232 serial connection D-SUB CONNECTOR (DB-9 FEMALE)
PIN 1 ---NO CONNECTION
PIN 2 ----------------------RXD
PIN 3 ----------------------TXD
PIN 4 ----------------------DTR
PIN 5 ----------------------GND
PIN 6 ---NO CONNECTION
PIN 7 ----------------------RTS
PIN 8 ---NO CONNECTION
PIN 9 ---NO CONNECTION
<NOTE:> The D-SUB Female Connector TXD and RXD pins are internally swapped. Therefore,
interface cable between power supply and computer (controller) should not swap pins, such as a Null
Modem cable.
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