User manual

Troubleshooting
6. Check the indicator lights.
The A dapter Status and USB Status indicator lights on the ada pter should be in their normal settings. To check them, refer to
the following tables:
Table 1: A dapter 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 firmware upgrade mode, the firm ware upgrade has completed
successfully.
Solid A firmware upgrade is in process.
Firmware upgrade mode: A USB mass storage device is detected,
which contains the firmware upgrade file.
Yellow
Blinking
Non firmware upgrade mode: The GPIB cannot be placed online due to
an error detected by the GPIB driver.
TEK-USB-488 GPIB to USB Adapter User Manu al 19