HDMI TCP/IP Extender

One day I found the need to replace the HDMI extender that I had been using with a new one. I decided that I would look to do this with a TCP/IP Capable unit as this would allow the use of the CAT6 Cable for other IP based use.

So off to Jaycar (local Australian electronics shop) to pickup the following unit https://www.jaycar.com.au/100m-hdmi-tcp-ip-1080p-extender-with-infrared/p/AC1734

100m HDMI TCP/IP 1080p Extender with Infrared
100m HDMI TCP/IP 1080op Extender with Infrared

The units all plugged in well and sent HDMI signal as expected but when I went to find them on the network I couldn’t find them…..off to do some google research.

Turns out that these units are not on the same network as my local network and do not use DHCP for configuration. I stumbled upon a different physical unit manual ( https://www.innochain.com.tw/images/SX-EP22-28-E6-89-93-E5-8D-B0-29-email.pdf ) that mentioned that

  • TX was found on
  • RX was found on

I quickly added a secondary IP address to my local PC ( Success! I was then able to hit web pages on both the TX and the RX. – TX Unit

Welcome Page
System Settings – Allows modification of IP Address
UART Settings – looks like a serial UART Baud rate can be set…maybe this is on the board
Firmware Upgrade – yet to find a firmware image
Factory Default – Resets the settings to default. Additionally holding down the reset button at power on does this also.
EDID Settings – Extended Display Identification Data

System Restart – restarts the system – RX Unit

Not much difference here except that there is no EDID Setting option

Opening Up the Units

OK so this will void your WARRANTY

Opening the units it is clear that

TX Unit
RX Unit
  • At point 1 can add a serial port
  • At point 2 a 4 switch DIP module can be added to set the GROUP ID

This is a major upgrade of the unit and will let you run multiple TX/RX groups on the same network. I got this information from the SX-EP22 Manual

How to use DIP switch:
1).Use 4-bit DIP switch to select 16 group ID (such as 0001, 0010, 0101 etc.)
2).Change group ID easily to select the sources.
3).For example, when the connection is :
Source( DVD1) – TX (TX1) – Gigabit Switch – RX(RX1)- TV1
Source (DVD2) – TX (TX2) – Gigabit Switch – RX(RX2)- TV2
Source (DVD3) – TX (TX3) – Gigabit Switch – RX(RX3)- TV3
The group ID of transmitters is :
TX1 (0001)
TX2 (0101)
TX3 (0100)
If you need display Source2 on TV1, then just set Group ID of RX1 same as TX2: 0101

Additional TODO

  • Find firmware or source tree
  • Find information on EDID file format

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