User guide

9
Connecting a USB Device
1. Install any software required to operate the USB device(s). Refer to the documentation for the
USB device(s), as required.
2. Connect the USB device to the device port on the MTX unit.
3. Check that the device is detected and installed properly in the operating system.
Compatibility
The AFI Series USB 2.0 complies with USB 1.1 and USB 2.0 specifications governing the design of USB
devices. However, American Fibertek does not guarantee th at all USB devices are compatible with the
AFI Series USB 2.0 , as there are a number of different configurations that may impact the operation of
USB devices over extended distances.
Troubleshooting
The following table provides troubleshooting tips. The topics are arranged in the order in which they
should be executed in most situations. If you are unable to resolve the problem after following these
instructions, please contact technical support for f urther assistance.
PROBLEM CAUSE SOLUTION
All LEDs on
MRX/RRX unit are
off.
The MRX/RRX unit is not
receiving enough power from
the USB port or the
(optional) MRX/RRX AC
adapter.
1. Ensure the USB connection between the
MRX/RRX and host computer is properly
installed.
2. Move the USB connector to another USB
port on the hos t computer.
All LEDs on MTX
unit are off.
The MTX unit is not
receiving power from the AC
adapter.
1. Ensure that the AC power adapter is
properly connected to the MTX unit.
2. Check that the AC adapter is connected to
a live source of electrical power. Check that
the MTX power LED is illuminated.
Link LEDs on
MRX/RRX unit and
MTX unit are off.
There is no connection
between the MRX/RRX and
MTX unit.
1. Ensure that a singlemode fiber optic cable
with crossover is connected between the
MRX/RRX and MTX units.
2. Connect a short fiber optic crossover patch
cord between the MRX/RRX and MTX
units. Recheck operation of the system.