9-1
IM 2553A-01EN
USB Interface
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App
Index
9.1 USB Interface Features and Specifications
USB Interface Features
Reception Feature
• With the exception of turning the power switch on and off, you can use the reception feature to
specify the same settings that you specify by using the front panel keys.
• The 2553A can receive panel setup parameters, error codes, and other output requests from a
controller.
• The 2553A can receive status report commands.
Transmission Feature
The 2553A can transmit panel setup parameters, status byte, error codes that occur, and so on.
USB Interface Specifications
Item
Specifications
Number of ports
1
Connector type
Type B connector (receptacle)
Electrical and mechanical
Complies with USB Rev. 2.0
Supported transfer modes
HS (High Speed; 480 Mbps) and FS (Full Speed; 12 Mbps)
Supported protocols
USBTMC-USB488(USB Test and Measurement Class Ver.1.0)
Switching between Remote and Local Modes
When Switching from Local to Remote Mode
The 2553A switches to remote mode when it is in local mode and receives a
:COMMunicate:REMote ON
command from the PC.
• The REMOTE indicator turns on.
• All dials and switches are disabled except for the flipping of the
OUTPUT
switch to the LOCAL
side to change the 2553A to local mode.
• Settings entered in local mode are retained even when the 2553A switches to remote mode.
When Switching from Remote to Local Mode
When the 2553A is in remote mode and you flip the
OUTPUT
switch to the LOCAL side,
the 2553A switches to local mode. However, this does not work if the 2553A has received a
:COMMunicate:LOCKout ON
command from the PC. The 2553A switches to local mode when it
receives a
:COMMunicate:REMote OFF
command from the PC, regardless of the local lockout
state.
• The REMOTE indicator turns off.
• Dials and switches can be used.
• Settings entered in remote mode are retained even when the 2553A switches to local mode.
Note
You cannot use the USB interface simultaneously with other interfaces (GP-IB or Ethernet).
Chapter 9
USB Interface