Crestron USB-EXT-2 Installation Manual page 2

Troubleshooting
The following table provides corrective actions for possible issues that may arise when
installing and operating the USB-EXT-2. If further assistance is required, please contact a
Crestron customer service representative.
USB-EXT-2 Troubleshooting
TROUBLE POSSIBLE CAUSE(S)
The USB device is The USB device requires
attached but does not drivers that are not
function. installed on the host
computer.
The USB device does not
support USB hubs.
The USB device has
malfunctioned.
An overcurrent condition
has occurred because the
USB device drew more
power than can be
supplied per the USB
speci cation (1 A).
As of the date of manufacture, the product has been tested and found to comply with speci cations
for CE marking.
Federal Communications Commission (FCC) Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions:
(1) This device may not cause harmful interference and (2) this device must accept any interference
received, including interference that may cause undesired operation.
CAUTION: Changes or modi cations not expressly approved by the manufacturer responsible for
compliance could void the user's authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee
that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
USB-EXT-2 Troubleshooting (continued)
The Link LEDs on the local
and the remote extenders
do not light.
CORRECTIVE ACTION
Install the required USB
device driver on the host
computer operating
system prior to attaching
the USB device to the
remote extender. Refer
to the USB device
documentation for more
information.
Check in the Device
Manager tool (Windows)
or the System Pro ler
tool (macOS) that the
device has enumerated.
Refer to the USB device
documentation for more
information.
Cycle the power of the
remote extender by
unplugging the power
adapter from the remote
extender. Wait
approximately 30
seconds, and then plug
the adapter back into the
remote extender.
If the overcurrent
condition continues to
occur, the USB device
may use more power
than can be supplied per
the USB speci cation, or
the USB device may be
damaged.
Refer to the USB device
documentation for
powering the USB
device with the required
power supply.
Industry Canada (IC) Compliance Statement
CAN ICES-3 (B)/NMB-3(B)
The product warranty can be found at www.crestron.com/warranty.
The speci c patents that cover Crestron products are listed at patents.crestron.com.
Certain Crestron products contain open source software. For speci c 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. Extreme USB is either
a trademark or a registered trademark of Icron Technologies Corporation in the United States and/or
other countries. Linux is either a trademark or a registered trademark of Linus Torvalds 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, registered 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.
Crestron Electronics, Inc.
15 Volvo Drive Rockleigh, NJ 07647
Tel: 888.CRESTRON
Fax: 201.767.7576
www.crestron.com
TROUBLE POSSIBLE CAUSE(S)
The remote or the local
extender is not receiving
power.
The CAT cable connecting
the local and the remote
extenders is
malfunctioning.
The USB-EXT-2 is
malfunctioning.
CORRECTIVE ACTION
Ensure that the host
computer is powered on
and is properly
connected to the local
extender.
Ensure that the power
supply is properly
connected to either the
local or the remote
extender.
Ensure that the CAT5e
(or better) cable is
properly installed.
Replace the cable if
necessary.
Ensure that the power
supply is connected to
a live source of electrical
power.
Installation Guide - DOC. 7987A
(2048810)
07.17
Speci cations subject to
change without notice.