2
TX
3
RX
4
NC
5
GND
6
NC
7
CTS
8
RTS
9
NC
Table 8.1: RS-232 (DE-9) Pinout
cables or adapters must be used, as described under RS-232 connector. Note that even if the cable has the proper
connectors for your system,the internal wiring may be incorrect. The interface cable must be connected to the
correct serial port on your computer (COM1, COM2,etc.).
8.1.2
RS-232 Communication settings
Before communication operation, please make sure that the following parameters of electronic load match that of
PC. Baud rate :9600(4800,9600,19200,38400,57600,115200). You can enter system menu through panel to set
communication baud rate. Data bit:8 Stop bit:1 Parity:(none,even,odd) EVEN:: eight data bits with even parity
ODD::eight data bits with odd parity NONE: : eight data bits without parity
Start Bit 8 Data Bits Parity=None Stop Bit
8.2
USB interface
Use Type A to Type B USB cables to connect the power meter.
The USB interface capabilities of the power meter are described below:
•
The interface is IEEE488.2 standard USB488 interface
•
The interface accepts REN_CONTROL,GO_TO_LOCAL ,LOCAL_LOCKOUT request.
•
The interface accepts MsgID = TRIGGER USBTMC command message and forwards TRIGGER requests to the
function layer.
The USB488 device capabilities of the power meter are described below:
•
The device understands all mandatory SCPI commands.
•
The device
is SR1 capable. • The device is RL1 capable.
•
The device is DT1 capable.
