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13

RS-232 SERIAL CONTROL

Commands

These commands are not case-sensitive. 

Command

Description

A

Enable Auto-Switching

N

Disable Auto-Switching

S

Get System Status

V

Displays Firmware Version

Command Descriptions:

A Command

The A command enables auto-switching.  The Switcher will automatically switch 
to the last source device that was powered on.

Syntax: 

a

Parameters:

None

N Command

The N command disables Auto-Switching.

Syntax:

n

Parameters:

None

Summary of Contents for GTV-HDMI1.3-441N

Page 1: ...www gefentv com 4X1 Gefen TV Switcher GTV HDMI1 3 441N User Manual...

Page 2: ...ort gefentv com Notice Gefen LLC reserves the right to make changes in the hardware packaging and any accompanying documentation without prior written notice 4x1 GefenTV Switcher is a trademark of Gef...

Page 3: ...IR Remote Installation 8 IR Remote Configuration 9 Changing the IR Channel 10 Connecting and Operating the GefenTV 4x1 Switcher for HDMI 1 3 10 Wiring Diagram 11 Controlling the GefenTV 4x1 Switcher...

Page 4: ...ne HDTV display Resolutions up to 1080p Full HD with multichannel digital audio are supported 3D content can be displayed when connecting a 3DTV and 3D source The front panel LEDs show the currently s...

Page 5: ...feature If a new source is connected or turned on the Switcher will automatically switch to that input The 4x1 Switcher will revert to the previous input once the current device is turned off or disc...

Page 6: ...ough Supports LPCM 7 1 audio Dolby Digital Plus Dolby TrueHD and DTS HD Master Audio Local Switching Auto Switching feature RS 232 control IR remote control Supports DVI sources and DVI displays with...

Page 7: ...4 PANEL LAYOUT Front Panel 1 2 3 4 5 6 7 8 9 10 Back Panel...

Page 8: ...at EQ Pre Emphasis is active 5 RS 232 Serial Port Output Connects to the RS 232 control device The 4x1 may be switched remotely using this port See page 12 for details 6 EQ Pre Emphasis Button Use thi...

Page 9: ...Activity Indicator This LED will be activated momentarily each time a button is pressed 2 Input Source Selection Buttons 1 4 These buttons are used to select which input source is routed to the HDTV d...

Page 10: ...k of the IR Remote Control unit 2 Insert the included battery into the open battery slot The positive side of the battery should be facing up 3 Replace the battery cover The Remote Control unit ships...

Page 11: ...ated underneath the battery cover It is important that the IR channel selected on the remote match the IR channel on the GefenTV 4x1 Switcher for HDMI 1 3 for proper operation For example if you set b...

Page 12: ...ng blue LED on the Input Indicators page 5 2 Press the Select button to cycle through each IR channel IMPORTANT The selected IR channel must be the same as the IR channel set on the IR Remote see page...

Page 13: ...itional HDMI cable to connect an HDTV to the Output on the Switcher 3 Connect the included 5V DC locking power supply to the power receptacle on the Switcher 4 Connect the other end of the power suppl...

Page 14: ...ycle through each input source 3 Send RS 232 commands to the serial port on the rear panel via computer or a control automation device Page 12 for details Automatic Switching The GefenTV 4x1 Switcher...

Page 15: ...presses on the RMT 4IR remote control All possible control actions are shown as follows Table of Commands and Results ASCII RMT 4IR Button Binary Result 1 1 0011 0001 Selects Input 1 2 2 0011 0010 Se...

Page 16: ...sable Auto Switching S Get System Status V Displays Firmware Version Command Descriptions A Command The A command enables auto switching The Switcher will automatically switch to the last source devic...

Page 17: ...lease see the examples below the syntax description Syntax s Parameters None Examples s 2A In the first example above 2A indicates that Input 2 is selected and Auto Switching Mode is active s 3N In th...

Page 18: ...Volts p p TTL HDMI Input Connectors 4 HDMI Type A 19 pin female HDMI Output Connector HDMI Type A 19 pin female RS 232 Interface DB9 female Power Supply 5V DC Power Consumption 10 Watts max Operating...

Page 19: ...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...

Page 20: ...Rev A3 20600 Nordhoff St Chatsworth CA 91311 1 800 545 6900 818 772 9100 fax 818 772 9120 www gefen com support gefen com Pb This product uses UL listed power supplies...

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