Tektronix TEK-USB-488, Руководство пользователя

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Troubleshooting
The Adapter Status and USB Status indicator lights on the adapter
should be in their normal settings. To check them, refer to the
following tables:
Table 1: Adapter Status LED
Color Illumination Description
Solid The GPIB is online and operational. A USB connection is
established. Green
Blinking If in normal operational mode, the GPIB cannot be placed
online because there is not an active USB connection or
the connected USBTMC-USB488 device is not a Tektronix
instrument.
If in the
fi rmware upgrade mode, the fi rmware upgrade has
completed successfully.
Solid A fi rmware upgrade is in process.
Firmware upgrade mode: A USB mass storage device is
detected, which contains the
fi rmware upgrade fi le.
Yellow
Blinking
Non fi rmware upgrade mode: The GPIB cannot be placed
online due to an error detected by the GPIB driver.
Solid The adapter sensed an attempted connection of a USB
connection to a non USBTMC-USB488 device. The adapter
refused to make the connection. Red
Blinking If in operational mode, the power-up self test failed.
If in the
fi rmware upgrade mode, the fi rmware upgrade
failed.
None Off If in operational mode, the GPIB is off line.
It may also mean that the adapter is not powered on.
Table 2: USB Status LED
Illumination Description
Off No USB connection is present
Solid A USB connection is present, and there is no activity
Blinking A USB connection is present, and data is being transferred
on any of the USB endpoints.
22 TEK-USB-488 GPIB to USB Adapter User Manual