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System Operation
No drivers are required for a host PC to function with the FOX T/R USB Extender Plus. The
transmitter is detected by the operating system and appropriate USB device drivers are
loaded. Certain USB peripherals, such as gaming keyboards, USB interactive whiteboards,
scanners, printers, and similar devices, require specific drivers 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
appropriate 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 reliable but are susceptible to bad connections or cables that
are too long. The fiber optic cable can have the same issues. To avoid the loss of data and
communications, follow these guidelines:
•
•
•
•
In addition to providing connection status, front panel LEDs are useful for troubleshooting.
The following table outlines operating details indicated by the LEDs.
Transmitter
LED
On
Indicator
Power
12 VDC supply is
connected and operating
properly.
Link
Both transmitter and
receiver have power and
are connected properly
by the fiber optic cables.
Host
When the transmitter
power LED is on, lights
when communication
with host PC is
established.
Hub
N/A
The USB cables that connect the transmitter to the host or the receiver hub ports to
peripheral devices should not exceed 3 meters (10 feet).
When connecting the host or peripherals, use only cable designed for USB signals.
Avoid or limit the use of adapters.
The FOX T/R USB Extender Plus 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 fiber optic 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 both Power LEDs are on,
the fiber optic cables are not
connected or are connected
improperly.
If the transmitter power LED
is on, the USB cable is not
connected.
N/A
Table 1: System Troubleshooting
FOX T/R USB Extender Plus • Installation and Operation
Receiver
On
Off
12 VDC supply is
12 VDC supply is not
connected and operating
connected or defective.
properly.
Both transmitter and
If both Power LEDs are
receiver have power and
on, the fiber optic cables
are connected properly
are not connected or are
by the fiber optic cables.
connected improperly.
If either Power LED is
off, see the Power LED
troubleshooting instructions,
above.
Lights when
The Host USB port is not
communication with host
connected or the host is not
PC is established.
communicating.
Blinks if power and Link
LEDS are on, but no USB
devices are connected.
Lights when a connected
A peripheral on the
peripheral is recognized
USB port has not been
by the host PC.
recognized or is improperly
connected.
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