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Gefen warrants the equipment it manufactures to be free from defects in material and 

workmanship.

If equipment fails because of such defects and Gefen is notified within two (2) years from 

the date of shipment, Gefen will, at its option, repair or replace the equipment, provided 

that the equipment has not been subjected to mechanical, electrical, or other abuse or 

modifications. Equipment that fails under conditions other than those covered will be 

repaired at the current price of parts and labor in effect at the time of repair. Such repairs 

are warranted for ninety (90) days from the day of reshipment to the Buyer.

This warranty is in lieu of all other warranties expressed or implied, including without 

limitation, 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 cables must be in their original 

condition.

The information in this manual has been carefully checked and is believed to be accurate. 

However, Gefen assumes no responsibility for any inaccuracies that may be contained 

in this manual. In no event will Gefen be liable for direct, indirect, special, incidental, or 

consequential damages resulting from any defect or omission in this manual, even if 

advised of the possibility of such damages. The technical information contained herein 

regarding the features and specifications is subject to change without notice.

For the latest warranty coverage information, refer to the Warranty and Return Policy under 

the Support section of the Gefen Web site at www.gefen.com.

iii

Warranty Information

Summary of Contents for GTB-HD4K2K-148C-BLK

Page 1: ...1 8 Splitter for HDMI 60Hz 4 2 0 GTB HD4K2K 148C BLK User Manual Release A2...

Page 2: ...d from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments accessories specified by the manufacturer 12 To...

Page 3: ...cular 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 Coppe...

Page 4: ...Time Fax 818 772 9120 Email support gefen com Web http www gefen com Mailing Address Gefen LLC c o Customer Service 20600 Nordhoff St Chatsworth CA 91311 Product Registration Register your product her...

Page 5: ...e 12 for more information The 4K Ultra HD 1 8 Splitter for HDMI automatically detects the presence of Deep Color This feature will be disabled if any of the connected sink devices displays etc do not...

Page 6: ...GA Supports 12 bit Deep Color at 1080p 3DTV pass through Lip Sync pass through FST Technology speeds up HDCP authentication process EDID Management and Audio Mode selectors for rapid integration of so...

Page 7: ...with the items listed below If any of these items are not present in your box when you first open it immediately contact your dealer or Gefen 1 x 4K Ultra HD 1 8 Splitter for HDMI 1 x 6 ft HDMI cable...

Page 8: ...itters 5 2 Basic Operation Setting the Switching Mode 8 Fast Switching Technology 8 Using Fast Mode 8 Using Slow Mode 9 Setting the Audio Channel Mode 10 Using 2 Channel Audio 10 Using Multichannel Au...

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Page 11: ...1 8 Splitter for HDMI 60Hz 4 2 0 1 Getting Started...

Page 12: ...6 Out 7 Out 8 In Power 5V DC USB Int Ext EDID Audio FST 2ch Multi ch Fast Slow 4K Ultra HD 1 8 Splitter for HDMI Out 1 Out 2 Out 3 Out 4 Out 5 Out 6 Out 7 Out 8 In Power 5V DC USB Int Ext EDID Audio...

Page 13: ...on using this feature 4 EDID Int Ext Use this slider switch to switch between internal Int and external Ext EDID modes See Setting the EDID Mode page 12 for more information 5 In Connect the included...

Page 14: ...to the splitter using ports Out 1 Out 8 3 Connect the included 5V DC locking power supply to the power receptacle on the splitter Do not overtighten the locking power connector 4 Connect the included...

Page 15: ...tter for HDMI in the setup Figure 1 1 Using two 1 8 Splitter units to distribute an Ultra HD source to 15 Ultra HD displays Figure 1 2 Using a 1 8 Splitter and a 1 4 Splitter to distribute an Ultra HD...

Page 16: ......

Page 17: ...page 7 1 8 Splitter for HDMI 60Hz 4 2 0 2 Basic Operation...

Page 18: ...n the same system Using Fast Mode Use fast switching mode to improve performance when connecting disconnecting Hi Def sources and powering ON OFF HDTV displays 1 Disconnect the power supply from the 4...

Page 19: ...tter 2 Set the FST switch to the Slow down position 3 Reconnect the power supply to the splitter If the FST switch is moved from the Fast position to the Slow position while the splitter is powered th...

Page 20: ...the splitter by disconnecting and reconnecting the power supply in order for the change to take effect 5 The internal EDID will restrict the audio output to the following format s regardless of the au...

Page 21: ...le the splitter is powered then power cycle the splitter by disconnecting and reconnecting the power supply in order for the changes to take effect 5 When the Audio switch is set to the Multi ch posit...

Page 22: ...source device with a generic EDID which can be used by all display sink devices The use of the internal EDID also provides control of the audio output format See Setting the Audio Channel Mode page 10...

Page 23: ...ch display or other sink device that is connected to the splitter Once this information is gathered the splitter builds an EDID based on the highest video resolution and most superior audio format tha...

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Page 25: ...page 15 1 8 Splitter for HDMI 60Hz 4 2 0 3 Appendix...

Page 26: ...al surfaces to allow for enough clearance for insertion and retraction of cables at the HDMI connectors For installation on a drywall surface use a 6 drywall screw It is recommended when installing on...

Page 27: ...om the splitter during the update process 4 Connect the USB cable between the computer and the 4K Ultra HD 1 8 Splitter for HDMI 5 Power ON the 4K Ultra HD 1 8 Splitter for HDMI 6 Once the computer is...

Page 28: ...Video Output 8 x HDMI Type A 19 pin female locking USB 1 x Mini B Power Connector 1 x Locking type FST Switch 1 x 2 position slide type Audio Switch 1 x 2 position slide type EDID Switch 1 x 2 positio...

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Page 30: ...20600 Nordhoff St Chatsworth CA 91311 1 800 545 6900 818 772 9100 fax 818 772 9120 www gefen com support gefen com Preferred...

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