AMX DXLink HDMI MMF-D, Instruction Manual, Page: 87 / 137

Troubleshooting
87 Instruction Manual – DXLink™ Fiber Transmitters and Receivers, Duplex
DXLink Fiber Troubleshooting

Signal concerns – If you are experiencing general signal problems, it may be because of fiber cable quality
issues. Be sure to check the “Fiber Optic Cable Requirements” section on page 41.

Audio – If you are experiencing audio problems, it may be because you are trying to pass Dolby, DTS, or high
PCM frequency rates and the destination device does not support them. Re-programming the EDID may help
resolve the problem (see page 134).

Video – If you are experiencing video problems, it may be because you are trying to pass a video format that
the destination device does not support. Re-programming the EDID may help resolve the problem (see
page 134).

Verify optical signal (multimode transceivers only) – If you are unsure that a multimode transceiver is passing
a signal, hold the unattached end of the fiber optic cable away from you and take a picture of it with a digital
camera (or cell phone camera). The image will show a bright light if the signal is being passed (works on
most digital cameras and cell phone cameras).
Network Setup Issues
The instructions below can be used for first time setup of DXLink Fiber units on a network with no NetLinx Master
(integrated).
Note: Before setting up the network, we recommend plugging all required Ethernet cables into the network
before applying power to the DXLink Fiber units.
To set the IP, connection, and device parameters on a DXLink Fiber unit:
1.
Attach the DXLink Fiber unit via its ICS LAN 10/100 port to the network or PC.
2.
Power up the DXLink Fiber unit.
3.
The DXLink Fiber unit will get a DHCP address or default to 169.254.2.2 (or if the unit is in Static IP Mode, the
address will be 192.168.1.2).
4.
Establish a Telnet connection* to the DXLink Fiber unit and set up the network parameters using the following
three commands:
 SET IP
 SET CONNECTION

SET DEVICE
5.
Enter
REBOOT
.
6.
Reset the DIP switches to configure the DXLink Fiber unit for the specific type of system setup being used (see the
“Common Scenarios” table on page 40).
Note: If you cannot locate the DXLink Fiber unit in the Online Tree, you can reset the factory default by
holding the ID button during power up until the LEDs blink in unison and then releasing the ID button. This will
revert the DXLink Fiber unit to DHCP mode. Start again at Step 1 above.
* For additional information on establishing a Telnet connection and Telnet commands, see page 93.