8250A Optical Power Meter Operation Manual
4.3.3 Precautions when Using USB
4-7
4.3.3
Precautions when Using USB
1. Connect the connection cable to the USB connector (B type) on the rear panel of this instrument and
the USB connector on the personal computer.
Insert the connector completely when connecting.
2. Use the USB hub when connecting several instruments to a personal computer.
3. Up to 64 characters per transmission can be recognized as a program command.
If the program command exceeds 64 characters, an error occurs.
4. Send a command without the terminators such as CR or LF at the end of the command strings.
4.3.4
USB Setting
1. The USB setting item and its initial setting when the instrument is shipped are shown below.
2. USB.ID setting
•
Set USB.ID by key operations in MENU.
•
The header in USB is common with header in GPIB. Refer to 4.2.3.
Or set the header by using remote commands.
•
In reference to 4.1, “Selecting a Remote Interface”, select "USB".
To cancel the setting, press
[CE]
.
Setting item
Factory setting
Header ON/OFF
ON
USB.ID
1
Key operation
Display
1.
[MENU]
010
SM.CNT
The first item of the menu is displayed.
2.
[PREV]
001
USB.ID
Display
example:
ID=1
3.
[
] [
]
001
USB.ID
Select a digit to be changed.
[
] [
]
010
USB.ID
Change a value in each digit.
Display example: ID=10
4.
[ENTER]
Settings are complete.
