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Crestron DM-TX-300N/-F
Problem Solving
Use the Right Wire
Calculate Power
Operations Guide – DOC. 6907D
DigitalMedia™ CAT & Fiber Transmitters 300N
Troubleshooting
The following table provides corrective action for possible trouble situations. If
further assistance is required, please contact a Crestron customer service
representative.
DM-TX-300N/-F Troubleshooting
TROUBLE
POSSIBLE CAUSE(S)
Device does not
Device is not
function.
communicating with the
network.
Device is not receiving
power from a Crestron
power source.
PWR LED does
Device is not receiving
not illuminate.
power.
DM LINK LED
Device is not
does not
transmitting DMNet
illuminate.
signal.
Loss of
Improper grounding.
functionality due
to electrostatic
discharge.
NOTE: For more advanced diagnostics, use the DMTool in Crestron Toolbox.
Check Network Wiring
In order to ensure optimum performance over the full range of your installation
topology, Crestron Certified Wire and only Crestron Certified Wire may be used.
Failure to do so may incur additional charges if support is required to identify
performance deficiencies because of using improper wire.
CAUTION: Use only Crestron power supplies for Crestron equipment. Failure to
do so could cause equipment damage or void the Crestron warranty.
CresFiber fiber optic cables provide for longer distances between the DigitalMedia
switcher and a DigitalMedia Room Controller. For more information, refer to the
latest version of the Crestron DigitalMedia Design Guide (Doc. 4789).
DigitalMedia™ CAT & Fiber Transmitters 300N: DM-TX-300N/-F • 33
CORRECTIVE ACTION
Use Crestron Toolbox to poll
the network. Verify network
connection to the device.
Use the provided Crestron
power source. Verify
connections.
Verify PWR connections are
properly attached.
Verify DM OUT connections
are properly attached.
Check that all ground
connections have been made
properly.
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