Crestron electronic DigitalMedia Repeater DM-DR - Manual (Page 20)

DigitalMedia
™
Repeater Crestron DM-DR
DM-DR Troubleshooting (Continued)
TROUBLE POSSIBLE
CAUSE(S)
CORRECTIVE
ACTION
DM LINK LED
does not
illuminate. Device is not
sending or
receiving DMNet
signal. Verify DMNet is
properly attached.
PWR LED does
not illuminate. Device is not
receiving power. Verify DMNet is
properly attached.
Loss of
functionality due
to electrostatic
discharge. Improper
grounding. Check that all ground
connections have
been made properly.
Check Network Wiring
Use the Right
Wire 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.
Calculate
Power
CAUTION: Use only Crestron power supplies for Crestron
equipment. Failure to do so could cause equipment damage or void the
Crestron warranty.
CAUTION: Provide sufficient power to the system. Insufficient
power can lead to unpredictable results or damage to the equipment.
The EIG connector on the DM switcher is used to jumper in external
power. Additional power is rarely required; switchers provide enough
power for their maximum configuration of room controllers and
repeaters. Please use the DMNet Power Calculator to help calculate
how much power is needed for the system
(
www.crestron.com/calculators ).
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• DigitalMedia ™ Repeater: DM-DR Operations & Installation Guide – DOC. 6745A