No communication to display, Server radio power LED not lit, Bad Ethernet cable or coupler

Potential Symptoms

  • No communication to the display.
    • Unable to ping the display.
  • Server radio has no power going to it.  No power LED lit on server radio.

Computer directly connected to DC Injector specific symptoms

  • LED lights on the computer's NIC are off.
  • Local area connection on computer shows Media Disconnected or Cable Unplugged.

900 xTR model specific symptoms

  • Unable to ping server radio or detect it with EBR diagnostics.

Environment

  • Product Family: Message Displays
  • Product: Galaxy, GalaxyPro, Electronic Message Center (EMC) or Board (EMB), Marquee, Readerboard
  • Component: Ethernet Bridge Radios (EBRs), DC Injector (DCI) / Power over Ethernet (PoE) device
  • Control System:

Cause

  • Cat 5 cable or coupler between the DC Injector and the Server radio has failed.

Resolution

  • Replace the cable going from the POE/ DC Injector to the Server Radio.
    • Note: Re-termination of the Cat 5 cable may also resolve the issue.
Note - When reinstalling the radio cover plate do not overtighten the bolts. There is a gasket that can fail if the bolts are over tightened.

KB ID: DD2548984


Fill out my online form.

DISCLAIMER: Use of this content may void the equipment warranty, please read the disclaimer prior to performing any service of the equipment.

DAKTRONICS DOES NOT PROMISE THAT THE CONTENT PROVIDED HEREIN IS ERROR-FREE OR THAT ANY DEFECTS WILL BE CORRECTED, OR THAT YOUR USE OF THE CONTENT WILL PROVIDE SPECIFIC RESULTS. THE CONTENT IS DELIVERED ON AN "AS-IS" AND "AS-AVAILABLE" BASIS. ALL INFORMATION PROVIDED IN THIS ARTICLE IS SUBJECT TO CHANGE WITHOUT NOTICE. DAKTRONICS DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY WARRANTIES OF ACCURACY, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. DAKTRONICS DISCLAIMS ANY AND ALL LIABILITY FOR THE ACTS, OMISSIONS AND CONDUCT OF YOU OR ANY THIRD PARTIES IN CONNECTION WITH OR RELATED TO YOUR USE OF THE CONTENT. ADJUSTMENT, REPAIR, OR SERVICE OF THE EQUIPMENT BY ANYONE OTHER THAN DAKTRONICS OR ITS AUTHORIZED REPAIR AGENTS MAY VOID THE EQUIPMENT WARRANTY. YOU ASSUME TOTAL RESPONSIBILITY FOR YOUR USE OF THE CONTENT AND ANY LINKED CONTENT. YOUR SOLE REMEDY AGAINST DAKTRONICS FOR DISSATISFACTION WITH THE CONTENT IS TO STOP USING THE CONTENT. THIS LIMITATION OF RELIEF IS A PART OF THE BARGAIN BETWEEN THE PARTIES.

The above disclaimer applies to any property damage, equipment failure, liability, infringement, or personal injury claim arising out of or in any way related to your use or application of the content, whether such claim is for breach of contract, tort, negligence or any other cause of action.