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Frequently Asked Questions

What kind of CAT-5e cable should I be using?

Solid core CAT-5e cable rated at 350 Mhz and terminated in 568a or 568b is the 
minimum requirement. For resolutions greater than 1280x1024 or 1080i, Gefen 
recommends solid CAT-6 cables.

I’m getting no video on the screens, what can I check?

First thing to check is make sure that the video CAT5 is linked to the other video CAT5 port 
and the same with the DDC ports. Test to make sure the units are working with short CAT-5e 
cables 15-20 feet.  You can also make sure you have the correct boost setting confi gured 
(refer to page 9).

I’m getting no video on the screens using ADC to DVI adapters, what is wrong?

ADC to DVI adapters remove the necessary 5V line that the extenders require on the input 
to operate.  To enable the 5V you will need to open up the sender unit.  Next to each DVI/
HDMI input connector will be a jumper that needs to be shorted to enable 5V to the input.  
This should only be enabled when using a ADC to DVI Adapter otherwise damage to your 
video card may result.

How can I fi x an occasionally fl ickering or fl ashing picture?

Flickering or a blinking image is the result of a loss of sync between the display and the 
source. Try lowering the resolution to see if that helps, if it does, the CAT-5 cables you 
are using are unable to handle the bandwidth of the higher resolution and thus you are 
losing sync. Try a shielded CAT-6 cable on the video line to reduce interference. You 
can also try adjusting the service switches. Usually this is caused by EMI and a shielded 
CAT-6 with metal RJ-45 connectors with the drain wire soldered to the connectors will 
resolve the issue. Please refer to the service switch guide on page 9 for the different 
combinations.

Why is there a green or pink tint to my picture?

A tint of green or pink in the picture is a result of incorrect colorspace being transmitted.  
This can be resolved by recycling power on your devices including the extender.  If this 
does not help, the DDC data containing the colorspace is not being transmitted correctly 
due to loss in the CAT5 cable, try replacing the DDC cable.

Why is the USB dropping out every so often?

The USB bus is inherently not a very reliable system.  Drop outs occur on occasion but if 
it is happening quite often, then interference along the DDC line that is also transmitting 
USB is causing the problem.  Try using a shielded CAT-5e cable on this line instead.

I can’t seem to get my RS-232 devices to detect and connect, what’s wrong?

The CAT5-9500HD system only extends the Tx and Rx lines of RS232.  If you need full 
RS232 extension of every line, you will need the standalone RS232 Extender units.

Can I run the CAT-5 cable through a patch bay?

No, the signal will not transmit reliably

TROUBLESHOOTING

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Summary of Contents for CAT5-9500HD

Page 1: ...CAT5 9500HD U S E R M A N U A L www gefen com ...

Page 2: ...o Gefen Inc c o Customer Service 20600 Nordhoff St Chatsworth CA 91311 support gefen com www gefen com Notice Gefen Inc reserves the right to make changes in the hardware packaging and any accompanying documentation without prior written notice CAT5 9500HD is a trademark of Gefen Inc 2007 Gefen Inc All Rights Reserved ASKING FOR ASSISTANCE ...

Page 3: ... DESCRIPTIONS CAT5 9500HDS BACK PANEL LAYOUT CAT5 9500HDS BACK PANEL DESCRIPTIONS CAT5 9500HDR BACK PANEL LAYOUT CAT5 9500HDR BACK PANEL DESCRIPTIONS CAT5 WIRING DIAGRAM SERVICE SWITCH USAGE GUIDE WIRING DIAGRAM TROUBLESHOOTING TERMINOLOGY SPECIFICATIONS WARRANTY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...

Page 4: ...AT5 9500HD series to the same computer allowing access to the same computer from other locations up to 200 feet apart Lengths and Distances Supported Up to 200 Feet 1280x1024 60Hz Up to 150 Feet 1920x1200 60Hz CONTENTS The CAT5 9500HD system consists of 1 CAT5 9500HDS sender unit 1 CAT5 9500HDR receiver unit 2 5VDC power supply 1 DVI cable 6FT 2 PS 2 cable 6FT 1 Audio cables 6FT 1 USB cable 6FT 1 ...

Page 5: ...es from the computer outputs into the CAT5 9500HD Sender unit inputs Only the peripherals being extended need to be connected 2 Connect the cable from your display monitor or projector into the DVI out of the CAT5 9500HD Receiver unit 3 Connect the cables from your peripherals into their respective outputs on the CAT5 9500HD Receiver unit 4 Connect two CAT 5e cables for video and USB extension on ...

Page 6: ...ICATOR Indicates that the unit is plugged in and powered on 1 CAT5 9500HDS FRONT PANEL DESCRIPTIONS 3 Front Panel Function Description POWER ON INDICATOR Indicates that the unit is plugged in and powered on 1 CAT5 9500HDR FRONT PANEL DESCRIPTIONS 1 ...

Page 7: ...CAT5 9500HDS BACK PANEL LAYOUT 4 1 2 3 4 5 6 7 8 9 10 11 12 ...

Page 8: ...ith the supplied DVI cable USB IN USB input from computer KEYBOARD Mini din PS 2 connector connects to PC for keyboard controls MOUSE Mini din PS 2 connector connects to PC for mouse controls CAT 5 AUDIO RJ 45 input extends audio out and audio in with CAT 5 cable CAT 5 SERIAL PS 2 RJ 45 input extends RS232 and PS 2 keyboard and mouse with CAT 5 cable RS232 DB 9 input from computer AUDIO OUT Audio ...

Page 9: ...CAT5 9500HDR BACK PANEL LAYOUT 6 1 2 3 4 5 6 7 8 9 10 11 12 ...

Page 10: ...nitor for local video USB Out USB Output to devices KEYBOARD PS 2 output connects to the keyboard MOUSE PS 2 output connects to the mouse CAT 5 AUDIO RJ 45 input connects CAT 5 cable to receive extended audio in and audio 2 signals CAT 5 SERIAL PS 2 RJ 45 input connects CAT 5 cable to receive extended RS 232 and PS 2 signals RS232 DB 9 connector connects to RS 232 devices AUDIO IN Audio mini jack ...

Page 11: ...White Orange Orange White Green Blue White Blue Green White Brown Brown RJ 45 Jack RJ 45 Jack 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 1 8 1 8 CAT5 WIRING DIAGRAM 8 ...

Page 12: ... 4 are not used Note Adjustments should be done with sources and display on Sender Dip Switch Settings Setting Switch 1 Switch 2 No Boost OFF ON Normal Boost Default OFF OFF Strong Boost ON OFF Undefined ON ON Receiver Dip Switch Settings Setting Switch 1 Switch 2 No EQ Default OFF OFF EQ Setting 2 ON OFF EQ Setting 3 OFF ON Maximum EQ ON ON Adjustment Guidelines 1 Strong boost should not be used ...

Page 13: ...WIRING DIAGRAM 10 ...

Page 14: ...bles you are using are unable to handle the bandwidth of the higher resolution and thus you are losing sync Try a shielded CAT 6 cable on the video line to reduce interference You can also try adjusting the service switches Usually this is caused by EMI and a shielded CAT 6 with metal RJ 45 connectors with the drain wire soldered to the connectors will resolve the issue Please refer to the service...

Page 15: ...ors such as flat panels and DLP projectors A consumer electronics version not necessarily compatible with the PC version is used as a connection standard for HDTV tuners and displays Transmits an uncompressed digital signal to the display The latter version uses HDCP copy protection to prevent unauthorized copying USB Universal Serial Bus An external peripheral interface standard for communication...

Page 16: ...200 Video Connector Type DVI I 29 pin female digital only Link Connector RJ 45 Shielded USB Input USB type B connector USB Output USB type A connectors PS 2 Keyboard Connector 6 Pin MiniDin PS 2 Mouse Connector 6 Pin MiniDin RS232 Connector DB 9 Power Consumption 20 watts max Power Supply 5V DC Dimensions 17 W x 1 75 H x 4 375 D Shipping Weight 10 lbs ...

Page 17: ...tion any implied warranty or merchantability or fitness for any particular purpose all of which are expressly disclaimed 1 Proof of sale may be required in order to claim warranty 2 Customers outside the US are responsible for shipping charges to and from Gefen 3 Copper cables are limited to a 30 day warranty and cable must be free from any scratches markings and neatly coiled The information in t...

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