Troubleshooting - Crestron USB-EXT Quick Start Manual

USB-EXT
USB over Twisted Pair Extender
6

Troubleshooting

The following table provides corrective actions for possible issues that may arise. If further assistance is required, please contact a Crestron customer service representative.
TROUBLE
No LEDs illuminate on the local extender.
No LEDs illuminate on the remote
extender.
The Link LEDs on the local extender
and on the remote extender are off.
The Link LEDs on the local extender are
illuminated, but the Host LED is off.
There is a loss of functionality due to
electrostatic discharge.
The USB-EXT has been working, but the
Host LEDs on the local and the remote
extenders are now blinking.
All LEDs on both the local extender and
the remote extender are on, but the USB
device does not operate correctly, or it is
detected as an "Unknown Device" in the
operating system.
The USB device is attached to either of
the remote USB ports, but the associated
USB LED is off.
The USB LED on the remote extender is
orange, and the device is not functioning.
The Host and Link LEDs on the local and
the remote extender blink intermittently.
Product warranty can be found at www.crestron.com. The specific patents that cover Crestron products are listed at patents.crestron.com. Certain Crestron products contain open source software. For specific information, please visit www.crestron.com/opensource.
Crestron and the Crestron logo are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. macOS is either a trademark or a registered trademark of Apple, Inc. in the United States and/or other countries. Windows is either a trademark or a
registered trademark of Microsoft Corporation in the United States and/or other countries. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and
names of others. Crestron is not responsible for errors in typography or photography.
This document was written by the Technical Publications Department at Crestron. ©2016 Crestron Electronics, Inc.
2
For Regulatory Compliance information,
refer to the latest version of Doc. 7205.
QUICKSTART DOC. 7204B (2031178)
POSSIBLE CAUSE(S)
The local extender is not receiving power from the AC
power adapter.
The remote extender is not receiving power over the
CAT5 cable.
There is no connection between the local and remote
extenders.
The CAT5 cable is defective.
The host computer is not powered on.
The local extender is not connected to the computer.
The computer does not support USB hubs.
The USB-EXT is malufunctioning.
The unit is improprely grounded.
The remote unit is in suspend mode. The operating
system may put the USB-EXT in suspend mode when a
computer is put into a suspend/standby state.
No USB devices are attached.
The USB device is malfunctioning.
The computer does not recognize the USB device.
The application software for the device is not operating.
The USB-EXT is malufunctioning.
A USB device does not have the appropriate driver
installed on the computer.
An overcurrent condition has occurred because the USB
device drew more power than can be supplied per USB
specification (500 mA).
There is a firmware mismatch between the local and
the remote extenders.
www.crestron.com
10.16
Specifications subject to
change without notice.
CORRECTIVE ACTION
Ensure that the AC power adapter is properly connected to the local extender.
Check that the AC adapter is connected to a live power source.
Ensure that the CAT5 cabling between the local and the remote extender is properly installed.
Verify the power pack connection to the local extender. Check that the local and the remote extender's
Power LEDs are both illuminated.
Ensure that the CAT5 cable is connected between the local and remote extenders and that CAT5 cable (or better),
UTP with a straight-through connector and no crossovers, and eight RJ-45 connectors are used at both ends.
To determine if the CAT5 cable is defective, connect a short CAT5 patch cord between the two units.
Power on the host computer.
Check that the local extender is properly connected to the computer.
Connect the USB-EXT to a computer that supports USB hubs.
Complete the following procedure:
1. Disconnect power to the local extender.
2. Disconnect all USB devices from the remote extender.
3. Disconnect the local extender from the computer.
4. Reconnect the local extender to the computer.
5. Reapply power to the local extender
6. On a computer using Windows software, ensure that the device is recognized as a "Generic USB Hub"
in the Universal Serial Bus section of Device Manager.
Check that all ground connections have been properly made.
Recover/resume the operating system from suspend/standby mode.
Attach a USB device to the USB-EXT.
Perform either of the following:
• Disconnect the USB-EXT from the computer and connect it directly to the USB port on the computer. If the
device does not operate properly, consult the user documentation for the device for further troubleshooting.
• If the device operates properly when directly connected to the computer, connect another device (of a
different type) to the USB-EXT. If the second device does operate properly, the first device may not be
compatible with the USB-EXT.
If the above steps do not solve the issue, update the system BIOS (basic input/output system), chipset, or
USB host controller drivers from the system/motherboard manufacturer's website.
Install the USB driver on the computer prior to attaching the USB device to the remote extender. Refer to
the USB device manufacturer's website for details.
Cycle the power of the local extender.
Use a different local/remote pair that have the same firmware version.
Check the Crestron FTP site for the latest firmware versions.
888.CRESTRON 201.767.3400