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HDMI Tree Chain Extender
User Manual
Ⅰ. Introduction
Ⅱ. Product
Ⅲ. System Structure
Ⅳ. RS-232 Control
Ⅴ. Specification
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Ⅰ. Introduction
Based on plug-and-play structure of Daisy/Tree Chain and Giga PHY network structure, HDMI Tree Chain
Extender not only enables easy management and better expansibility, but also achieves 1 G bps of data
transfer rate. Furthermore, the patent for lossless image compression algorithm contributes to superb image
quality for HD PC signal transmission.
Ⅱ. Product
IR Emitter：IR Emitter
RS-232：RS-232 control port connected to PC
HDMI In：HDMI AV input port
Out：System connection port (output)
DC 5V：Power port (DV5V/2A)
IR Receiver：IR Receiver
RS-232：RS-232 device connection port
HDMI Out：HDMI AV output port
OSD：Press this key to display current Receiver information, e.g., ID, Depth and Baud rate.
In：System connection port (input)
Out1、Out2：System connection port (output)
DC 5V：Power port (DV5V/2A)
HD-308R-Tree
Repeater/Receiver
Transmitter
HD-308T-Tree
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Ⅲ. System Structure
Transmitter
Repeater/Receiver
Repeater/Receiver
Repeater/Receiver
Repeater/Receiver
Repeater/Receiver
Repeater/Receiver
Repeater/Receiver
RS-232 Control
HDMI AV
Max. 100m
Max. 100m
Max. 100m
Max. 100m
Max. 100m
Max. 100m
HD-308T-Tree
HD-308R-Tr
HD-308R-Tr
HD-308R-Tr
HD-308R-Tr
HD-308R-Tr
HD-308R-Tr
HD-308R-Tr
[Tree Chain]
(1) Each Receiver supports 2 output ports of system connection.
(2) Max. 100m between system connections.
(3) Tree Chain Configuration：Under 100 displays
(4) Suggest depth level 10, total 100 displays
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Transmitter
Repeater/Receiver
Repeater/Receiver
Repeater/Receiver
RS-232 Control
HDMI AV
Max. 100m
Repeater/Receiver
Max. 100m
HD-308R-Tr
HD-308R-Tr
HD-308R-Tr
HD-308R-Tr
HD-308T-Tree
[Daisy Chain]
(1) If each Receiver connects only 1 output port of system connection
(2) Max. 100m between system connections.
(3) Tree Chain Configuration：Under 31 displays
(4) Daisy Chain Depth：31 levels, total 31 Receivers
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Ⅳ. RS-232 Control
1. Interface：RS-232
2. Protocol：9600,N,8,1
3. HDMI Tree Chain Extender adopts ASCII, supporting RS-232 command of 32Bytes.
4. Command function includes Full Control and Access Control.
5. Command List：
(1) Full Control- Command B
Format：[B] [baud rate] [data1][data2][data3]…… [data32]
[B] ASCII → Full control command
[baud rate] ASCII → Baud rate of controlled devices
[data1]…[data32] 1bytes holds one piece of information → Device command
Baud rate list：
ASCII Code
Description
ASCII Code
Description
0
Baud rate =2400 Bps
5
Baud rate =28800 Bps
1
Baud rate =4800 Bps
6
Baud rate =38400 Bps
2
Baud rate =9600 Bps
7
Baud rate =57600 Bps
3
Baud rate =14400 Bps
8
Baud rate =115200 Bps
4
Baud rate =19200 Bps
For example：
B012345 → Full control, Baud rate 2400Bps, Device command 12345
B756789111 → Full control, Baud rate 57600Bps, Device command 56789111
(2) Access Control- Command U
Format：[U] [baud rate][ID1][ID2][depth] [data1][data2][data3]…… [data32]
[U] ASCII → Control command of designated ID
[baud rate] ASCII → Baud rate of controlled devices
[ID1][ID2] ASCII →HD-308 Receiver ID, e.g., 00, 01, 02, 03, 10, 11…
[depth] ASCII → Depth (hardware connection) of HD-308 Receiver
[data1]…[data32] 1bytes holds one piece of information→ Device command
Baud rate list：
ASCII Code
Description
ASCII Code
Description
0
Baud rate =2400 Bps
5
Baud rate =28800 Bps
1
Baud rate =4800 Bps
6
Baud rate =38400 Bps
2
Baud rate =9600 Bps
7
Baud rate =57600 Bps
3
Baud rate =14400 Bps
8
Baud rate =115200 Bps
4
Baud rate =19200 Bps
For example：
U000212345 → Baud rate 2400Bps, Designate ID00, Depth 02, Device command 12345
U700256789111 → Baud rate 57600Bps, Designate ID00, Depth 02, Device command 56789111
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Ⅴ. Specification
Video Specification
Maximum Resolution：1920 x 1200 @ 60Hz(VSEA) / 1080P@ 60Hz(Full HD 1920x1080p)
Latency Time：< 1 fps ( ~= 16.7 ms)
HDMI Specification：1.4a Compliance
Support DDC, Hot-Plug Detection (HPD), HDCP Functions
Support Default EDID, and Selected EDID mode
Audio Specification
Support Format：Compressed / Uncompressed I2S Audio
Channel：Up to 7.1 channel
Format：Dolby Digital/EX/Plus, Dolby True HD, DTS/ES/HD Master, PCM 2ch ~7.1ch
Point-to-Point Distance Specification
100m for all resolution
Ethernet Cable：CAT5e or above
I/O Specification
Support RS232-Over-CAT5
Broadcast / Selected Point-to-Point Mode
Support Universal IR-Over-CAT5
Daisy/Tree Chain Specification
Tree Chain Configuration：Under 100 displays
Daisy Chain Depth：31 Clients (31 displays)
Distance Spec.：Each point to point 100m
Other Specification
Voltage：5V @ 1.5A max
Power Consumption：< 5 Watts
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