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5. Troubleshooting & Maintenance 

1) 

When images of terminal unit output with ghost, such as the projector output with 

ghost. Generally this is not a unit faulty, this may be caused by an incorrect setting 
on the projector or a bad quality of cable. Please check the projector’s setting or try 
another high quality connection cable. 

2) 

When there is a color losing or no video signal output, please check the input and 

output end connections of the cables. 

3) 

When user cannot control the extender by computer through its COM port, please 

check the COM port number in the software and make sure the COM port is in 

good condition. 

4) 

When switching, there is no output image: 

  Check with oscilloscope or multimeter if there is any signal at the input end. If 

there is no signal input, it may be the input connection cord broken or the 

connectors loosen. 

  Check with oscilloscope or multimeter if there is any signal at the output end. If 

there is no signal output, it may be the output connection cord broken or the 

connectors loosen. 

  If it is still the same after the above checking, maybe there is something wrong 

in the extender. Please send it to the dealer for fixing. 

5) 

If the static becomes stronger when connecting the video connectors, it probably 

due to bad grounding, please check the grounding and make sure it connected well, 

otherwise it would damage the extender

Summary of Contents for 77451-70-POE

Page 1: ...77451 70 POE Twisted Pair POE Extender User Manual...

Page 2: ...r shock hazard do not expose the unit to rain moisture or install this product near water Do not put any heavy items on the extension cable in case of extrusion Do not remove the housing of the device...

Page 3: ...nual is only for operation instruction only not for any maintenance usage The functions described in this version are updated till September 13 2016 Any changes of functions and parameters since then...

Page 4: ...Package Contents 1 2 Product Appearance 2 2 1 Transmitter 2 2 2 Receiver 3 3 System Connection 4 3 1 Usage Precautions 4 3 2 System Diagram 4 3 3 Connection Procedure 4 3 4 Application 5 3 5 Twisted P...

Page 5: ...DMI 1 4 and HDCP compliant Support PoE CEC Connect with a displayer to transmit EDID and HDCP signals constantly by using a CAT5e cable Use HDBaseT technology Bi directional RS232 IR control LED indic...

Page 6: ...LED will blink 4 POWER LED LED indicator of power When connect with power red LED will keep on 5 HDBT OUT Connect to the HDBT IN port of Receiver with a CAT5e cable 6 HDMI IN Connect to HDMI source 7...

Page 7: ...LED will blink 4 POWER LED When connect with power red LED will keep on 5 HDBT IN Connect to the HDBT OUT port of Transmitter with a CAT5e cable 6 HDMI IN Connect to HDMI display device 7 IR IN Connec...

Page 8: ...T6 cable Step3 Connect HDMI displayer such as HDTV to HDMI OUT port of Receiver with HDMI cable Step4 Both Transmitter and Receiver have IR IN and OUT When one end is used as an IR receiver the signal...

Page 9: ...tice Cable connectors MUST be metal one the shielded layer of cable MUST be connected to the connector s metal shell to make a better transmission TIA EIA T568A TIA EIA T568B Pin Cable color Pin Cable...

Page 10: ...connector HDMI female 3 5mm mini jack 3p captive screw connector Video signal HDMI1 4 HDMI1 4 Transmission Mode HDBaseT General Resolution Range 800x600 1920x1200 3D 4Kx2K Transmission Distance Max d...

Page 11: ...ake sure the COM port is in good condition 4 When switching there is no output image Check with oscilloscope or multimeter if there is any signal at the input end If there is no signal input it may be...

Page 12: ...S Impuls Handels GmbH Am M hlberg 8 91477 Markt Bibart Germany Tel 09162 98 96 0 Fax 09162 98 96 21 Email info s impuls de Website www s impuls de...

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