System Operation; Troubleshooting - Extron electronics 60-871-12 User Manual

System Operation

No drivers are required for a host to function with the USB Extenders. The transmitter is
detected by Windows and appropriate USB drivers are loaded. Certain USB peripherals, such
as gaming keyboards, USB interactive whiteboards, scanners, printers, and similar devices,
require specific drivers to be installed on the PC. See the USB device installation instructions
or the peripheral manufacturer website to obtain drivers.
Once the transmitter, the receiver, the PC or USB host, and peripherals are connected, have
the appropropriate drivers loaded, and are powered up, the system is fully operational. If
problems are encountered, ensure all cables are routed and connected properly and the
latest drivers for each peripheral are installed.

Troubleshooting

USB signals are generally very reliable but are susceptible to bad connections or cables
that are too long. The TP cable can have the same issues. To avoid the loss of data and
communications, follow these guidelines:
•
•
•
•
When properly connected and operating, both transmitter and receiver Power LEDs, Link
LEDs and Host LEDs are lit. The hub LED for each connected peripheral recognized by the
host PC is also lit.
Front panel LEDs may also be useful for troubleshooting. The following table outlines
operating details indicated by the LEDs.
Transmitter (Tx)
LED
On
Indicator
Power
12 VDC supply is connected
and operating properly, or
host is properly supplying
power.
Link
Both transmitter and receiver
have power and TP cable is
connected properly.
Host When transmitter power
LED is on, lights when
communication with host PC
is established.
Hub
N/A
The USB cable on the transmitter host connection or the receiver hub ports should not
exceed 10 feet (3 m).
When connecting the host or peripherals, use only cable designed for USB signals.
Avoid or limit the use of adapters.
The USB Extender works as described in point-to-point applications. Do not use
additional adapters, patch panels, or couplers with the host USB cables, hub USB cables,
or twisted pair cables. Additional links in the signal chain can result in the reduction of
signal integrity and overall cable length performance.
Off
12 VDC supply is not connected
or is defective.
If a transmitter supply is
not being used, USB host is
either not on or not providing
power, or the USB cable is
disconnected.
If both Power LEDs are on, the
TP cable is not connected or is
improperly wired.
If a transmitter supply is not
being used, USB host is either
not on or is not providing
power.
If transmitter power LED is on,
USB cable is not connected.
LED blinks if transmitter is not
communicating with receiver.
N/A
Table 1: System Troubleshooting
Receiver (Rx)
On Off
12 VDC supply is connected 12 VDC supply is not connected
and operating properly. or defective.
Both transmitter and receiver If both Power LEDs are on, the
have power and TP cable is TP cable is not connected or is
connected properly. improperly wired.
If either Power LED is off, see
the Power LED troubleshooting
instructions above.
Lights when communication Host USB port is not connected
with host PC is established. or host is not communicating.
Lights when the peripheral Peripheral on the USB port has
on the USB port has been not been been recognized or is
recognized by the host PC. improperly connected.
USB Extenders • Installation and Operation 12