Page 1
®
Daisy Chain HD
System
GTB-HD-DCS
GTB-HD-DCSP
GTB-HD-DCR
User Manual
www.gefentoolbox.com
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ASKING FOR ASSISTANCE
Technical Support:
Telephone (818) 772-9100
(800) 545-6900
Fax (818) 772-9120
Technical Support Hours:
8:00 AM to 5:00 PM Monday through Friday, Pacic Time
Write To:
Gefen, LLC.
c/o Customer Service
20600 Nordhoff St
Chatsworth, CA 91311
www.gefentoolbox.com
support@gefentoolbox.com
Gefen, LLC reserves the right to make changes in the hardware, packaging, and any
accompanying documentation without prior written notice.
Daisy Chain HD System is a trademark of Gefen, LLC
HDMI, the HDMI logo, and High-Denition Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing in the United States and other countries.
© 2012 Gefen, LLC. All rights reserved.
All trademarks are the property of their respective owners.
Notice
Rev A1
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CONTENTS
INTRODUCTION....................................................................................................................1
Operating Notes..............................................................................................................2
Features..........................................................................................................................3
Package Includes............................................................................................................3
Sender Unit Layout.........................................................................................................4
Sender Unit Descriptions................................................................................................5
Splitter Unit Layout..........................................................................................................6
Splitter Unit Descriptions.................................................................................................7
Receiver Unit Layout.......................................................................................................8
Receiver Unit Descriptions..............................................................................................9
CONNECTING THE DAISY CHAIN HD SYSTEM................................................................10
Daisy-Chaining using Splitters and Receivers..............................................................10
Connecting Directly to the Receiver Unit......................................................................10
Wiring Diagram..............................................................................................................11
OPERATING THE DAISY CHAIN HD SYSTEM..................................................................12
Connection Depth.........................................................................................................12
Connecting two CAT-5 cables to each Splitter unit...............................................12
Connecting a single CAT-5 cable to each Splitter unit..........................................12
LED Link Indicators.......................................................................................................13
EDID Management.......................................................................................................14
The default EDID..................................................................................................14
Using the External EDID........................................................................................14
EDID Programming Procedure.............................................................................15
How the EDID is applied.......................................................................................16
Controlling the source using IR.....................................................................................17
Controlling devices using RS-232.................................................................................17
Broadcast vs. Unicast Mode.................................................................................17
Determining the current Mode..............................................................................18
Reading the Mode Information....................................................................................18
Default settings for the Daisy Chain HD System..................................................19
Conguring Broadcast and Unicast Modes..........................................................19
RS-232 SERIAL INTERFACE..............................................................................................25
NETWORK CABLE WIRING DIAGRAM.............................................................................26
SURFACE MOUNTING INSTRUCTIONS............................................................................27
SPECIFICATIONS................................................................................................................28
WARRANTY..........................................................................................................................29
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INTRODUCTION
Congratulations on your purchase of the Daisy Chain HD System. Your complete
satisfaction is very important to us.
About Gefen
We specialize in total integration for your home theater, while also focusing on going above
and beyond customer expectations to ensure you get the most from your hardware. We
invite you to explore our distinct product line. Please visit http://www.gefen.com for the
latest offerings in High-Denition signal solutions or call us between the hours of 8:00 am
and 5:00 pm Monday-Friday, Pacic Standard Time for assistance with your A/V needs.
We’ll be happy to assist you.
The GefenToolBox Daisy Chain HD System
New technology using Video Over IP techniques allows the Daisy Chain HD system to
connect up to 100 displays using CAT-5 cables in a daisy chain mode going from one
display to the next. The system utilizes three modules: The Sender, which connects to
the HD source, the Splitter module, which connects to the Sender unit using a CAT5 cable
and the Receiver, which connects to the display. The Splitter unit also has an HDMI output
connector. The Sender, Receiver, and Splitter simplify extension of HDMI and control
signals to create an elaborate network of displays with the ability to route IR control back
from each display location to the source. RS-232 commands can also be distributed over
this daisy-chained network to execute commands such as turning all displays on
or off. Each CAT-5e cable between the source, splitter, and receiver units can be up to
330 (100 meters). Up to 100 Hi-Def displays at resolutions up to 1080p Full HD and
1920 x 1200 (WUXGA) are supported. A low-latency of less than a frame assures that all
displays reproduce audio and video in perfect sync. This easy-to-install and easy-to-expand
system is a great t for Digital Signage applications and also for commercial, entertainment
solutions (such as in bars, restaurants, and stores) that play back the same content using
multiple screens.
How It Works
Connect a computer or other Hi-Def source to the Sender unit’s HDMI input. If IR control
of the source device is required, connect an IR emitter to the Sender unit’s IR Out port and
attach it to the IR sensor window of the source. Connect a CAT-5e cable from the Sender
unit to the Splitter or Receiver unit. Connect an HDTV display to the HDMI output of the
Splitter or Receiver unit. If IR is used, connect a Gefen IR Extender module to the IR
Ext port on the Receiver or Splitter units and place it in a location that has a line-of-sight
access from the display location. To control the source, simply point the IR remote to the
IR Extender module. If using the Splitter unit, and the HDMI needs to be routed to more
displays, connect up to two CAT-5e cables from the Splitter unit to additional Splitters or
Receiver units for branching out.
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INTRODUCTION
READ THESE NOTES BEFORE INSTALLING OR
OPERATING THE DAISY CHAIN HD SYSTEM
• CAT-5e or CAT-6 cables should not exceed 330 feet (100 meters).
• Shielded (STP) CAT-5 or CAT-6 is recommended. However, unshielded (UTP)
CAT-5 or CAT-6 is acceptable, depending on cable quality, but is not the top choice.
Care should always be given to keep these cables away from power lines and other
electromagnetic interference sources.
• If RS-232-control of the displays from the source side is needed, connect a computer
to the Sender unit’s RS-232 port, and connect the RS-232 ports of each Splitter or
Receiver unit to the displays.
NOTE: Shielded cable has an advantage by providing immunity
to Electromagnetic Interference (EMI) from cell phones and A/C
motors.
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INTRODUCTION
HDMI Features Supported
• Resolutions up to 1080p Full HD and 1920 x 1200 (WUXGA)
• 12-bit Deep Color
• x.v. Color
• LPCM 7.1 Audio, Dolby® TrueHD, Dolby Digital® Plus, and DTS-HD® Master Audio™
• 3DTV pass-through
• Lip Sync pass-through
Features
• Extend, split, and daisy-chain HDMI, IR, and RS-232 using CAT-5e cables
• Each CAT-5e (or better) cable run up to 330 feet (100 meters)
• Guaranteed latency of less than one frame (16.7 to 20 ms) assures synchronized
A/V output from all displays
• Supports up to 100 HDTV displays
• Field-upgradable rmware
• Locking power supply connectors
• Wall or under-shelf mountable
• HDCP-compliant
Package Includes (GTB-HD-DCS)
• (1) Daisy Chain HD System - Sender unit
• (1) 6 ft. HDMI cable (M-M)
• (1) 6 ft. DB-9 cable (M-F)
• (1) Single Infrared Emitter
• (1) 5V DC Locking Power Supply
• (1) Quick Start Guide
Package Includes (GTB-HD-DCSP)
• (1) Daisy Chain HD System - Splitter unit
• (1) 6 ft. HDMI cable (M-M)
• (1) 6 ft. DB-9 cable (M-F)
• (1) IR Extender
• (1) 5V DC Locking Power Supply
• (1) Quick Start Guide
Package Includes (GTB-HD-DCR)
• (1) Daisy Chain HD System - Receiver unit
• (1) 6 ft. HDMI cable (M-M)
• (1) 6 ft. DB-9 cable (M-F)
• (1) IR Extender
• (1) 5V DC Locking Power Supply
• (1) Quick Start Guide
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INTRODUCTION
Sender Unit Layout
Back
76
6
1
2
1
3
54
3 4
7
Top
Front
2
5
4
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INTRODUCTION
Sender Unit Descriptions
1 HDMI In
Connect a Hi-Def source to this HDMI port using an HDMI cable.
2 Pwr
This LED indicator will glow bright blue when the included locking power supply is
connected to the power receptacle.
3 Link
This LED indicator will glow bright green when a valid link exists between the Sender unit
and a Receiver unit.
4 IR Out
Connect the included IR Emitter from this jack to the source device. This feature will
provide IR control of the source from the viewing location.
5 RS-232
Connect an RS-232 cable from this DB-9 connector to the RS-232 control device.
See page 25 for details on the RS-232 interface.
6 Link Out
Connect a CAT-5e (or better) cable up to 330 feet (100 meters) from this jack to a
Receiver (GTB-HD-DCR) or Splitter (GTB-HD-DCSP) unit.
7 5V DC
Connect the included 5V DC locking power supply to this connector and plug the AC
power cord into an available electrical outlet. Only use the power supply shipped with
this unit.
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INTRODUCTION
Splitter Unit Layout
Back
76
6
1
2
1
3
54
3
54
7
Top
Front
2
6
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INTRODUCTION
Splitter Unit Descriptions
1 HDMI Out
Connect an HDTV display to this HDMI port using an HDMI cable.
2 Pwr
This LED indicator will glow bright blue when the included locking power supply is
connected to the power receptacle.
3 Link
This LED indicator will glow bright green when a valid link exists between the Sender unit
and a Receiver unit.
4 IR Ext
Connect the included IR Extender to this jack. The IR Extender provides an IR sensor in
order to control the source device from the viewing location.
5 RS-232
Connect an RS-232 cable from this DB-9 connector to an RS-232 device. See page 25
for more information.
6 Link (Out A, Out B, In)
Connect a CAT-5e (or better) cable up to 330 feet (100 meters) from the Out A and/or
Out B jack to another Splitter unit or a Receiver unit. Connect a CAT-5e (or better) cable,
up to 330 feet (100 meters), between the In jack and a Sender unit.
7 5V DC
Connect the included 5V DC locking power supply to this connector and plug the AC
power cord into an available electrical outlet. Only use the power supply shipped with
this unit.
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INTRODUCTION
Receiver Unit Layout
87
Back
7
8
Top
1
2
3
1
3 5
Front
2
654
4
6
8
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INTRODUCTION
Receiver Unit Descriptions
1 HDMI Out
Connect an HDTV display (or other HDMI device such as an A/V splitter or switcher) to
this HDMI port using an HDMI cable.
2 Pwr
This LED indicator will glow bright red when the included locking power supply is
connected to the power receptacle.
3 Link
This LED indicator will glow bright green when a valid link exists between the Sender unit
and a Receiver unit.
4 EDID
Press and hold this button for two seconds to retrieve and store the downstream EDID in
the Sender unit.
5 IR Ext
Connect the included IR Extender to this jack. The IR Extender provides an IR sensor in
order to control the source device from the viewing location.
6 RS-232
Connect an RS-232 cable from this DB-9 connector to an RS-232 device.
See page 25 for more information.
7 Link Out
Connect a CAT-5e (or better) cable up to 330 feet (100 meters) from this jack to a Sender
(GTB-HD-DCS) or Splitter (GTB-HD-DCSP) unit.
8 5V DC
Connect the included 5V DC locking power supply to this connector and plug the AC
power cord into an available electrical outlet. Only use the power supply shipped with
this unit.
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CONNECTING THE DAISY CHAIN HD SYSTEM
1. Connect a Hi-Def source to the Sender unit using the included HDMI cable.
The Daisy Chain HD System can be connected in two ways:
► Daisy-Chaining using Splitters
• Connect a CAT-5 cable, up to 330 feet (100 meters) from the Link Out jack on the
Sender unit directly to the Link In jack on a Splitter unit.
• Daisy-chain additional Splitter units, if desired, by connecting a CAT-5 cable (up to
330 feet) between the Out A and Link In jacks on each Splitter unit.
• After all Splitter units have been connected, connect a CAT-5 cable (up to 330 feet)
between the Out B jack on each Splitter unit and the Link In jack on each Receiver
unit.
to Hi-Def source
Sender
Splitter
Splitter
(to additional Splitter or Receiver)
Up to 330 feet
(100 Meters)
Receiver
(up to 100 HDMI outputs)
Up to 330 feet
(100 Meters)
Receiver
to HDTV Display
(or other HDMI device)
► Connecting Directly to the Receiver unit
• Connect a CAT-5 cable, up to 330 feet (100 meters) from the Link Out jack on the
Sender unit directly to the Link In jack on the Receiver unit.
Refer to the illustration on the opposite page.
NOTE: If terminating network cables in the eld, please adhere to
the TIA/EIA568B specication (see page 26 for details).
2. Connect an HDTV display (or other HDMI A/V device) to the HDMI Out port on the
Receiver unit(s) using an HDMI cable.
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CONNECTING THE DAISY CHAIN HD SYSTEM
to Hi-Def source
Sender
Up to 330 feet
(100 Meters)
3. Additional displays can be connected to the Splitter units (if used) by connecting an HDMI
cable between the HDMI Out port and each HDTV display.
4. Connect an IR Emitter (Gefen part no. EXT-RMT-EXTIRC) to the IR Ext jack on the
Receiver unit(s).
5. Connect an IR Extender (Gefen part no. EXT-IREMIT) from the IR Out jack on the Sender
unit to the Hi-Def source.
6. Use the included RS-232 cable to connect the RS-232 controller to the RS-232 port on
the Sender unit. RS-232 devices can be connected to RS-232 ports on the Splitter or
Receiver unit(s).
Receiver
to HDTV Display
(or other HDMI device)
7. Connect the 5V DC locking power supplies to the Sender, Receiver, and/or Splitter
unit(s). Do not overtighten the locking connectors. Plug the two (2) AC power cords
from the power supplies to available electrical outlets.
Wiring Diagram
SCREEN
HDMI CABLE
CAT-5 CABLE
RS 232 CABLE
GTB-HD-DCS
GTB-HD-DCR
GTB-HD-DCRP
(Up To 330 feet)
IR
DVD Player
Local Display
RS-232
Controller
Splitter
(to additional Splitter or Receiver)
IR Emitter
Up to 330 feet
Sender
(100 Meters)
Splitter
Splitter
Receiver
IR Extender
HD Display*
Local Display
Receiver
IR Extender
Receiver
IR Extender
Switcher
* Up to 100 HDMI outputs
Projector
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OPERATING THE DAISY CHAIN HD SYSTEM
Connection Depth
The maximum number of levels of Splitter and/or Receiver units that can be connected within
the Daisy Chain HD System is dependent upon how each unit in the system is connected.
This number is referred to as the depth. For example, the most elementary system consists
of only a single Sender unit and has a depth of 1. If a Splitter (or Receiver) unit is attached to
the Sender unit, then the depth becomes 2. If another Splitter unit is added, then the depth
becomes 3. This process continues, until a maximum depth is reached.
Sx
Tx
Sx
Sx
Sx
Sx
Sx
Tx
Connecting two CAT-5 cables to each Splitter unit
If both CAT-5 jacks on each Splitter unit are used to connect to additional Splitter units (denoted
by Sx) in the system, then the maximum depth is 10.
1
2
3
Depth
...
10
Rx Rx Rx Rx
Connecting a single CAT-5 cable to each Splitter unit
If only a single CAT-5 cable is used to connect to another Splitter unit (denoted by Sx) in the
system, then the maximum depth is 30.
1
2
3
Depth
...
30
Sx
Sx
Sx
Rx
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OPERATING THE DAISY CHAIN HD SYSTEM
LED Link Indicators
The Link LED indicators on the Sender, Splitter, and Receiver unit provide basic information on
the current status of the Daisy Chain HD System.
Condition Link LED Status
• Power connected to
Sender, Splitter, and/or
Receiver
1
• CAT-5 cable connected
(or not connected) to
Splitter(s) / Receiver(s).
• Source is not connected
to the Sender unit.
Link LED slowly blinks three times, then
pauses, then repeats the cycle.
This applies to all units in the system.
• Power connected to
Sender, Splitter, and/or
Receiver.
• CAT-5 cable connected
to Splitter(s) / Receiver(s)
2
• Source is connected to
Sender unit.
If any of the Splitter or Receiver units within the group exhibit the behavior of Condition 1, even
when the source is connected to the Sender unit, then check the CAT-5 cable for defects or
loose connections.
Link LED ashes rapidly on each
unit that is connected to the Sender
unit, indicating that A/V data is being
transmitted.
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OPERATING THE DAISY CHAIN HD SYSTEM
EDID Management
The default EDID
The Sender unit contains a default EDID which supports the following:
Color Depths Audio Sampling Rates Resolutions / Timings
16 / 20 / 24 bit
32 / 44 / 48 kHz
640 x 480p @ 72 Hz
720 x 480i @ 60 Hz
720 x 480p @ 60 Hz
720 x 576i @ 50 Hz
720 x 576p @ 50 Hz
1280 x 720p @ 50 Hz
1280 x 720p @ 60 Hz
1440 x 480p @ 60 Hz
1440 x 576p @ 50 Hz
1920 x 1080i @ 50 Hz
1920 x 1080i @ 60 Hz
1920 x 1080p @ 50 Hz
1920 x 1080p @ 60 Hz
The default EDID is used when connecting the Daisy Chain HD System “out-of-the-box”.
Using the External EDID
The Daisy Chain HD System has an EDID button on the front panel of the Receiver unit and
Splitter units allowing the EDID of the display (or other device connected to the Receiver /
Splitter unit) to be stored in the Sender unit. Once the Sender unit is programmed with another
EDID, the default EDID cannot be restored.
When programming an EDID, it is critical to consider the capabilities of each display
and/or A/V device in the system. Therefore, the EDID of the display and/or A/V device that
is compatible with all other devices in the system should be used.
See the next page for information on programming an EDID.
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OPERATING THE DAISY CHAIN HD SYSTEM
EDID Programming Procedure
NOTE: Before programming the EDID, a Sender and at least one
Receiver must be connected using CAT-5 cable.
1. Make sure that the display (or other A/V device) is connected to the Receiver unit and that
all other Receiver / Splitter connections have been made (see pages 10 - 11 ).
2. Select the Receiver that is connected to the display (or other A/V device) that has an EDID
that is most compatible with all devices in the system.
3. Use a paperclip or other small pointed object to depress the EDID button on the front
of the Receiver unit.
4. Release the EDID button when the following message appears on the display:
5. Once the EDID has been successfully updated, the following message will be displayed.
Handle EDID NOW
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OPERATING THE DAISY CHAIN HD SYSTEM
If the EDID is identical to the EDID that was just programmed, “EDID the same as host”
will be displayed on the screen.
The programmed EDID will be used by all other displays (or other A/V devices) in the system.
For example, in the illustration below, the EDID button was pressed on Receiver “A”.
Therefore, the EDID from Local Display “A” will now be used by Local Display “B” as well as
any other devices (nodes C and D) connected in the system.
to Hi-Def source
Alternatively, pressing the EDID button on Splitter “A” will copy the EDID of Local Display “B” to
the Sender unit. The EDID from Local Display “B” will now be used throughout the system.
Splitter B
D
EDID has been updated OK
How the EDID is applied
Sender
Splitter A
C
Local Display B
Receiver A
EDID data
Local Display A
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OPERATING THE DAISY CHAIN HD SYSTEM
Controlling the source using IR
The Hi-Def source can be controlled from the viewing location by connecting an IR Extender
(Gefen part no. EXT-RMT-EXTIRC) to each Receiver unit. Refer to the illustration below.
Hi-Def source
Sender
Splitter
IR Data
Splitter
to HDTV Display
(or other HDMI device)
IR Extender
Receiver
DVD
SAT
TV
?
3
6
2
9
5
1
_
8
4
0
7
IR remote control
(for Hi-Def source)
Since the Daisy Chain HD System can only accommodate one Hi-Def source, the IR
commands from the IR remote control can be sent from any Receiver (at any location) in the
system.
Controlling devices using RS-232
Multiple RS-232 devices can be connected throughout the Daisy Chain HD System.
RS-232 control-based devices, such as the Gefen 4x1 HD Switcher w/ Audio Decoding
(Gefen part no. GTV-AUDDEC-N), can be connected to the Splitter and/or Receiver units.
The Daisy Chain HD System provides both Unicast and Broadcast modes.
Broadcast vs. Unicast Mode
Broadcast mode allows all RS-232 devices that are connected to each Splitter and/or Receiver
unit to receive the same RS-232 command at the same time. By default, the Daisy Chain HD
System is set to broadcast mode.
Unicast mode provides specic control of each RS-232 device in the system, regardless of
where the device (Splitter or Receiver) is connected within the system.
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OPERATING THE DAISY CHAIN HD SYSTEM
Determining the current Mode
The EDID switch on the Daisy Chain HD System has two functions: 1) Fetch the downstream
EDID and store it in the Sender unit. 2) Display the current mode (broadcast or unicast) of the
system.
1. Make sure that a display is connected to the Splitter or Receiver unit that is to be queried.
2. Quickly press and release the EDID button on the Splitter or Receiver unit.
3. After releasing the EDID button, a message similar to the following information will be
shown in the upper-left corner of the display.
V008.01
ID: 4 0 DEPTH: 3
HD Audio
socat5: Broadcast H: 115200 C: 9600
Reading the Mode Information
• The rst line of the status message is the rmware version.
• The second line tells us the ID of the unit to which the display is connected. The depth
information is also provided. It is important to understand that the ID and depth do not
tell us whether the unit we are looking at is a Splitter or a Receiver unit. However, it does
provide us with enough information on where this unit (Splitter or Receiver) is located
within the system. Together, the ID and depth provide us with the full ID of this unit.
• The third line tells us that HD (High-Denition) audio has been detected.
• Finally, the forth line tells us that the unit we are looking at is in Broadcast mode. The
baud rates of the host (H) and client (C) are also displayed. The information displayed
here will vary depending upon the current settings of the Splitter or Receiver unit.
4. Quickly press and release the EDID button on the (Splitter / Receiver) unit to dismiss the
information from the screen.
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OPERATING THE DAISY CHAIN HD SYSTEM
Default Settings for the Daisy Chain HD System
When the Daisy Chain HD System is unpacked from the box, the unit will be in Broadcast Mode
and will be set to a baud rate of 9600. Therefore, if multiple RS-232 devices (e.g. displays, etc)
will be controlled at 9600, then placing the Daisy Chain HD System in conguration mode will
not be necessary. To change baud rates or switch between broadcast and unicast mode, see
the examples below.
Conguring Broadcast and Unicast Mode
In this next section we are going to provide two examples which illustrate how to switch
between unicast and broadcast modes and how to change the baud rate. In both examples,
an RS-232 cable must be connected between the Sender unit and the computer (host).
The Gefen 4x1 HD Switcher w/ Audio Decoding (Gefen part no GTV-AUDDEC-N) will be used
as the RS-232 device (client) to illustrate each example.
1. Launch a terminal-emulation program (e.g. HyperTerminal, etc) and congure the
serial port using the settings provided on page 25. Make sure that the terminal baud rate
is set to 115200. In order to change the baud rates and/or switch between unicast and
broadcast mode, the system must be placed in conguration mode.
2. Enter conguration mode by pressing the following key combinations:
[CTRL] + C, [CTRL] + X, [CTRL] + Z
The following information will be displayed in the terminal window:
[Press Enter, then Set baudrate as 115200 to enter CMD mode
send msg0 [8100]
Since we already set the (host) baud rate in Step 1, we can ignore this portion of the
message.
TIP: The equivalent hex codes for each of these key combinations
can also be used to place the system in conguration mode.
[CTRL] + C = 0x03
[CTRL] + X = 0x18
[CTRL] + Z = 0x1A
Example - Broadcast Mode
3. Press the [ENTER] key to display the command prompt.
boot#
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OPERATING THE DAISY CHAIN HD SYSTEM
4. Type the following at the boot# prompt:
socat5 b 115200 19200
socat5 b 115200 19200
5. Press the [ENTER] key. The following information will be displayed in the terminal
window:
Baudrate H[115200] C[19200]
id0[0] id1[0] depth [0]
send msg0 [8100]
speed [115200]
save
Un-Protected 1 sectors
Erasing Flash...
. done
Erased 1 sectors
Writing to Flash... done
Protected 1 sectors
Sets the Sender unit baud
rate to 115200. This baud
rate can be changed if
necessary.
Sets the Receiver / Splitter
unit(s) baud rate to 19200.
This baud rate is required
by the GTV-AUDDEC-N.
“b” sets the system to
broadcast mode.
6. The Daisy Chain HD System is now in broadcast mode. RS-232 commands can now
be sent from the RS-232 controller (computer) to all RS-232 devices connected to the
system.
It is important to understand that, because we are in broadcast mode, all RS-232 clients
must be able to work at the same baud rate.
The diagram on the next page illustrates how RS-232 commands (black arrows) from
the computer (RS-232 controller) are distributed throughout the system. In this example,
a 4x1 HD Switcher w/ Audio Decoding has been connected to a Splitter and a Receiver
within the system. Each of these units will receive the same RS-232 command.
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OPERATING THE DAISY CHAIN HD SYSTEM
Diagram showing RS-232 control using Broadcast Mode
to Hi-Def source
Sender
Display
RS-232 controller
(Computer)
Splitter
Receiver
GTV-AUDDEC-N
RS-232 device
(GTV-AUDDEC-N)
GTV-AUDDEC-N
RS-232 device
(GTV-AUDDEC-N)
Display
Example - Unicast Mode
1. Launch a terminal-emulation program (e.g. HyperTerminal, etc) and congure the serial
port using the settings provided on page 25. Make sure that the terminal baud rate is set
to 115200.
2. Enter conguration mode by pressing the following key combinations:
[CTRL] + C, [CTRL] + X, [CTRL] + Z
TIP: The equivalent hex codes for each of these key combinations
can also be used to place the system in conguration mode.
[CTRL] + C = 0x03
[CTRL] + X = 0x18
[CTRL] + Z = 0x1A
3. The following information will be displayed in the terminal window:
[Press Enter, then Set baudrate as 115200 to enter CMD mode
send msg0 [8100]
Since we already set the (host) baud rate in Step 1, we can ignore this portion of the
message.
4. Press the [ENTER] key to display the command prompt.
boot#
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OPERATING THE DAISY CHAIN HD SYSTEM
Before setting unicast mode, it is important to identify the RS-232 device in the system
with which the computer will be communicating. We will use the same setup as before.
However, this time we wish to talk to the RS-232 device connected to the Receiver unit
(highlighted in yellow).
to Hi-Def source
Sender
Splitter
Display
GTV-AUDDEC-N
RS-232 device
(GTV-AUDDEC-N)
RS-232 controller
(Computer)
GTV-AUDDEC-N
RS-232 device
(GTV-AUDDEC-N)
Receiver
Display
5. Quickly press and release the EDID button on the Receiver unit to obtain its information.
V008.01
ID: 4 0 DEPTH: 3
HD Audio
Host exit socat5 Temporarily
From the example above, we need to know the ID of the Receiver and where it is located
within the system in order to communicate with it. In this case, the Receiver we want to
talk to is “4 0 3” (ID + Depth). This value is specied as part of the command line.
6. Type the following at the boot# prompt:
socat5 u 115200 19200 4 0 3
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OPERATING THE DAISY CHAIN HD SYSTEM
socat5 u 115200 19200 4 0 3
One distinct difference in typing the command line for unicast mode, is that the ID and
depth of the unit must be specied. In broadcast mode, all units receive the same
RS-232 data and specifying a particular device is unnecessary.
7. Press the [ENTER] key. The following information will be displayed in the terminal
window:
Baudrate H[115200] C[19200]
id0[4] id1[0] depth [3]
send msg0 [8100]
speed [115200]
save
Un-Protected 1 sectors
Erasing Flash...
. done
Erased 1 sectors
Writing to Flash... done
Protected 1 sectors
“u” sets the system to
unicast mode.
Sets the Sender unit baud
rate to 115200. This baud
rate can be changed if
necessary.
Selects the Splitter
or Receiver in the
system that we
want to talk to.
Sets the Receiver / Splitter
unit(s) baud rate to 19200.
This baud rate is required
by the GTV-AUDDEC-N.
8. The Daisy Chain HD System is now in unicast extender mode.
Quickly press and release the EDID button the Receiver unit, twice to refresh the
information on the display.
The message “Unicast Is Me” indicates that the Splitter or Receiver unit, to which the
display is connected, has been successfully assigned to receive RS-232 data.
If we looked at another display which was connected to a different Splitter or Receiver in
the system, we would see the following message, indicating that the unit cannot receive
RS-232 data:
socat5: Unicast Not Me
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Page 28
OPERATING THE DAISY CHAIN HD SYSTEM
V008.01
ID: 4 0 DEPTH: 3
HD Audio
socat5: Unicast Is Me H: 115200 C: 19200
The diagram below illustrates how RS-232 commands (black arrows) from the computer
(RS-232 controller) is distributed to the device that was specied as part of the command
line in Step 6. The depth of each unit in the system is indicated by the numbers in red.
Note that the computer can only communicate with the RS-232 device that is connected
to the Receiver unit (depth = 3). The RS-232 device connected to the Splitter (depth = 2)
is ignored.
Diagram showing RS-232 control using Unicast Mode
to Hi-Def source
Sender
1
RS-232 controller
(Computer)
10. In order to communicate with a different RS-232 device, repeat Steps 2 - 8.
2
GTV-AUDDEC-N
RS-232 device
(GTV-AUDDEC-N)
Display
Splitter
Receiver
3
24
GTV-AUDDEC-N
RS-232 device
(GTV-AUDDEC-N)
Display
Page 29
RS-232 SERIAL INTERFACE
DE-9
DE-9 Connector (Sender / Splitter / Receiver)
564738291
Host Sender unit
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
R1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
R1
Splitter / Receiver unit Client
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
R1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
R1
Only TXD, RXD, and GND are used.
RS-232 Settings
Baud rate .....................................................................................................................115200
Data bits ............................................................................................................................... 8
Parity bits ....................................................................................................................... None
Stop bits ................................................................................................................................1
Flow Control ................................................................................................................... None
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Page 30
NETWORK CABLE WIRING DIAGRAM
Gefen recommends the TIA/EIA-568-B wiring option. Please adhere to the table below
when eld terminating cable for use with Gefen products.
Pin Color
1 Orange / White
2 Orange
3 Green / White
4 Blue
5 Blue / White
6 Green
7 Brown / White
8 Brown
CAT-5, CAT-5e, and CAT-6 cabling comes in stranded and solid core types.
Gefen recommends using solid core cabling. CAT-6a cable is also recommended.
It is recommended to use one continuous run from one end to the other. In some cases,
connecting through a patch might not work.
1 2 3 4 5 6 7 8
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Page 31
SURFACE MOUNTING INSTRUCTIONS
The GefenToolbox Daisy Chain HD System should be mounted vertically on a wall or
inside / outside a cabinet with wood / drywall screws as shown in the diagram above.
There should be an inch or two of clearance between the edges of the unit and any walls
or vertical surfaces to allow for enough clearance for connection and disconnection of the
HDMI cable.
For installation on a drywall surface, use a #6 drywall screw. When installing, it is
recommended to use the center hole on a stud.
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Page 32
SPECIFICATIONS
Maximum Pixel Clock.................................................................................................225 MHz
Video Input Connector (Sender).............................................(1) HDMI Type A 19-pin, female
Video Output Connector (Receiver/Splitter)............................(1) HDMI Type A 19-pin, female
IR Out connector (Sender)...............................................................(1) 3.5mm mini-mono jack
IR Extender connector (Receiver/Splitter)......................................(1) 3.5mm mini-stereo jack
RS-232 Connector (Sender/Splitter/Receiver)...............................................(1) DB-9, female
Link Input connector (Receiver/Splitter).....................................................(1) RJ-45, shielded
Link Output connector (Sender).................................................................(1) RJ-45, shielded
Link Output connector (Splitter)..................................................................(2) RJ-45, shielded
Power Indicator (Sender/Splitter/Receiver).........................................................(1) LED, blue
Link Indicator (Sender/Splitter/Receiver)...........................................................(1) LED, green
Power Supply (Sender/Splitter/Receiver)..........................................................5V DC, locking
Power Consumption (Sender / Splitter / Receiver).................................................10W (max.)
Dimensions (W x H x D) (Sender/Receiver)..................................................5.2” x 1.1” x 4.5”
(132mm x 28mm x 113mm)
Dimensions (W x H x D) (Splitter)....................................................................5.2” x 1.1” x 5”
(132mm x 28mm x 128mm)
Shipping Weight: Sender/Receiver....................................................................2 lbs (0.91 kg)
Splitter......................................................................................2.2 lbs (1 kg)
28
Page 33
WARRANTY
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 notied 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
modications. 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 tness 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 specications 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.
PRODUCT REGISTRATION
Please register your product online by visiting the Register Product page under the
Support section of the Gefen Web site.
29
Page 34
Rev A1
20600 Nordhoff St., Chatsworth CA 91311
1-800-545-6900 818-772-9100 fax: 818-772-9120
www.gefentoolbox.com support@gefentoolbox.com
Pb
This product uses UL or CE listed power supplies.
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