user manual
DX-700 • User’s Guide  • Rev 02 211
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Fiberlink NNI Hardware
4) NNI Connection LED
The NNI Connection LED indicates the status of the data coming over the NNI 
cable from the LED wall. 
Green indicates that a signal is present. Off indicates 
that a signal is not present. Refer to the “
LED Error Conditions” section on this 
page for important information about LED error indicators.
5) NNI Connector
The NNI Connector connects the Fiberlink NNI Receiver to the Barco LED wall 
via NNI cable. It uses a captive twist-lock dust cap that is rated for IP-65. 
6) Power LED
The Power LED indicates the status of power coming into the unit from the AC 
power supply. 
Green indicates that power is present. Off indicates that there is 
no power to the unit. Refer to the “
LED Error Conditions” section on this page 
for important information about LED error indicators.
7) Fiber Optic Connector
The Fiber Optic Connector connects the Fiberlink NNI Receiver module to the 
Fiberlink NNI 
Transmitter module via fiber optic cable. It is a twist-lock connector 
that is rated for IP-65. A captive dust cap is provided. 
8) Mounting Holes
Four Mounting Holes (8mm diameter) are provided in the Sun Shield to facilitate 
mounting the unit.  Refer to the “
Installing the Fiberlink NNI Modules” section 
on page 214 for installation recommendations.
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This section outlines important LED error conditions on the Fiberlink NNI Receiver unit. 
• Fast Blink — All LEDs on the Fiberlink NNI Receiver blink fast if more than 1.5 
amps of current are drawn from the unit by the NNI LED wall. In this condition, the 
power from the 
Receiver to the wall is shut down.
• Slow Blink — All LEDs on the Fiberlink NNI Receiver blink slow if more than .75 
amps of current are drawn from the unit by the NNI LED wall. In this condition, the 
power from the 
Receiver to the wall is shut down.
Each “blinking” condition points to a power supply, connection, or other power-related error 
on one or more NNI wall tiles. 
Important
An NNI cable is a High Definition Multimedia Interface (HDMI) 
cable. You should 
not attempt to connect an NNI cable to an 
HDMI monitor. Connecting directly to a monitor can result in 
damage to the monitor.
Important
Always put the dust cap on securely when the NNI cable is 
not connected to the unit. The dust cap is secure when it 
clicks into place.
Important
Always put the dust cap on securely when the fiber optic 
cable is not connected to the unit. The dust cap is secure 
when it clicks into place.










