Troubleshooting – Extron Electronics DVI DL 201 Tx_Rx User Guide User Manual
Page 23
Troubleshooting
If the DVI DL 201 Tx/Rx does not provide a high quality output signal, check the following
possibilities before contacting your Extron representative (see the back cover for contact
information). Be sure to read all the suggestions as many of the issues have several
possible solutions.
No output signal — Check that the front panel LEDs for both the transmitter and
receiver are on (lit amber). If they are not, check the power supply connections to the
units.
If a single power supply is being used to power both units, it must be connected to the
transmitter.
NOTE: Do not try to power both units with a single power supply connected to the
receiver as that will not provide adequate power to the transmitter.
There are some circumstances, particularly with longer Unshielded Twisted Pair (UTP) cable
runs, where the receiver may not get adequate power. Under these circumstances, it may
be necessary to use two separate power supplies, one for the transmitter and one for the
receiver.
Insure all three twisted pair cables are firmly seated in the correct receptacles.
No output signal or poor quality signal — Check the integrity of the UTP or STP cables
between the transmitter and the receiver.
NOTES: The transmitter and receiver pair works with unshielded twisted pair (UTP) or
shielded twisted pair (STP) cables. To ensure FCC Class A and CE compliance,
and for optimum performance, STP cables are recommended.
Do not use skew-free cable. Extron strongly recommends DTP26 cable,
especially when using high resolutions such as 1920x1200, 1600x1200, or
2560x1600. DTP26 cable is available as non-plenum (part number 22-214-03)
or plenum (part number 22-215-03).
z
Ensure that the twisted pair cables are terminated correctly and to the same standard
at both ends (see
).
z
Ensure that each RJ-45 connector is firmly seated in its receptacle and that each
transmitter port is connected to the correct receiver port (see
z
Ensure that the length of the twisted pair cable does not exceed the guidelines for
single link or dual link connections (see
DVI DL 201 Tx/Rx • Configuration and Operation
17