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Tutorials

T-21 has manufactured two versions of the T9261-D Decoder. Version 2.3 and Version 2.8.

T9261-D V2.3 Front View

Serial Numbers
less than 400 (<9261-00400)
Version
v2.3
Front Panel Identification
v2.3 hardware has a removable front panel supporting one 3G SDI interface. The DC power input uses a 3.5mm central positive power jack. The serial port uses a 2.5 mm three-pole jack and requires an external USB to TTL RS232 adaptor.

T9261-D V2.8 Front View

Serial Numbers
less than 400 (<9261-00400)
Version
v2.8

Front Panel Identification
v2.8 hardware has a fixed front panel without a front panel 3G SDI interface. The power jack is a two-pole removable screw terminal, with positive on the right. A USB 2.0 port and easily accessible reset button are located on the left of the front panel. The serial port uses a mUSB jack and supports direct connect to a PC USB port. The USB-TTL serial logic is installed on the v2.8 so a direct USB-mUSB connection can be made for terminal communications. A cp210x driver may be required for Windows use with Putty

  1. Log into the T9261-D web GUI and navigate to the HOST tab.
  2. Download the firmware to a disk and folder on your Windows/MAC/Linux computer.
  3. From the HOST tab, select the SYSTEM sub-tab, and click „Check for Space.“
  4. Choose File (firmware) from your computer’s disk and folder.

Click „Upload“ button to upload the firmware from your computer to the T9261-D.

Count down number in „OK“ button indicates how long until update automatically continues. Click „OK“ to immediately start update.

„Update has begun“ prompt. Select „OK“ close the window.

The T9261-D supports USB2 and USB3 media devices. To upload the new firmware from a USB media device (thumb-drive), follow the steps below.

  1. Download the firmware to a disk and folder on your computer.
  2. Copy the firmware file from your computer’s disk and folder to the USB media device.
    • There must ONLY be one copy of the firmware on the media device. Remove previous versions before inserting the media device into the T9261-D USB interface.
  3. Safely remove the media device from your PC.
  4. Insert the media device into the USB interface on the T9261-D.
  5. The fan and top blue LED will go off once the system mounts the media device and starts the upgrade script. The disk mount and script start takes about 10 seconds. The upgrade will take a little over a minute to complete. The device will reboot automatically.
  6. You can remove the USB media device from the T9261-D after the unit reboots and starts decoding.
  7. To confirm the update was successful:
    • Check the firmware version on the Web UI on the right side just above the tabs. The version should reflect the name of the firmware file loaded onto the USB media device.
    • Insert the USB media device into your PC and open the firmwareUpdate log.

  8. If more that one unit is upgraded using the same USB media device, there will be a firmware update log for each unit. The naming scheme for the firmware update log is as follows: <SN>-firmwareUpdate.log

The Metadata tab displays available video programs and the audio PIDs for each.

The number of available audio groups that you can set depends on the number of available audio PIDs in the video program selected. For example, if the video program only has two audio PIDs you can set up to two audio groups. Click Edit Video to choose a different video program. To make changes to audio groups click the Edit Audio button on the Status sub tab.

The available audio PIDs will be listed in this modal. PIDs need to be set consecutively and one PID cannot be set on multiple audios. Only the first audio group Format can be changed. Supported formats are LPCM, Pass SMPTE and Pass IEC. Analog enables the first audio group to be passed out the audio port on the front of the T21 device.

When you change the first audio PID and click Save it will be applied dynamically, not requiring the player to restart. Changing the Format always result in the player restarting. The video will go down for a few seconds before resuming.

Changing any of the other PIDs and clicking Save will result in the player restarting.

Download here the RTMP Youtube Guide for T9261-D in PDF format.

*More information on Youtube preferred encoder settings here.

Start with decoding a valid stream.

Sign into Youtube and click on your icon. Then go to Creator Studio.

If this is your first time click Get Started. Youtube will check your account for eligibility. Otherwise click on Live Streaming.

At the bottom of the Live Streaming page you need the information in the Encoder Setup section.

On the user interface go to the Transcode tab and select RTMP (Client) from the Protocol dropdown.

In the  URL field follow this format: rtmp://a.rtmp.youtube.com/live2/<stream key>
Use the Stream Name/Key you got from Youtube. Then click Apply.

The user interface will change from Decoding to Listening temporarily while it connects. Otherwise the feed will continue to be decoded throughout the process.

The Transcode path will be visible on the Status tab and a blinking box will appear in the header.

Back on your Youtube channel the status bar at the top should have changed to Live, a green dot and the video from the T9261-D should be playing.

To stop the stream, select Off from the Protocol list on the T21 device and click Apply.


The status on your Youtube channel should change back to Offline.

Downlaod here the RTMP Twitch Guide for T9261-D in PDF format.

Start with decoding a valid stream.

Sign in to Twitch and click on your username. Then click on Dashboard.

In the new window that opens up click on the Settings link on the left. Click on the Stream Key link.

Click on Show Key to open the modal.

Click I Understand to see your key. It’s important not to share it, otherwise you are exposed to someone hijacking your channel.

On the user interface go to the Transcode tab and select RTMP (Client) from the Protocol dropdown.

In the  URL field follow this format: rtmp://live.twitch.tv/app/<stream key>
Use the Key you got from Twitch. Then click Apply.

The user interface will change from Decoding to Listening temporarily while it connects. Otherwise the feed will continue to be decoded throughout the process.

The Transcode path will be visible on the Status tab and a blinking box will appear in the header.

Back on your Twitch Dashboard Page go to the Live link in the menu and the video from the T9261-D should be playing.

To stop the stream, select Off from the Protocol list on the T21 device and click Apply.

The video on your Twitch channel should change to Offline.

Download here the RTMP Youtube Guide for T9261-E in PDF format.

*More information on Youtube preferred encoder settings here.

Start with a valid SDI source connection.

Sign into Youtube and click on your icon. Then go to Creator Studio.

If this is your first time click Get Started. Youtube will check your account for eligibility. Otherwise click on Live Streaming.

At the bottom of the Live Streaming page you need the information in the Encoder Setup section.

On the user interface go to the Encode Outputs tab and select RTMP (Client) from one of the Protocol dropdowns.

In the  URL field follow this format: rtmp://a.rtmp.youtube.com/live2/<stream key>
Use the Stream Name/Key you got from Youtube. Then click Apply.

The Encode path will be visible on the Status tab and a blinking box will appear in the header.

Back on your Youtube channel the status bar at the top should have changed to Live, a green dot and the video from the T9261-D should be playing.

To stop the stream, select Off from the Protocol list on the T21 device and click Apply.

The status on your Youtube channel should change back to Offline.

Download here the RTMP Twitch Guide for T9261-E in PDF format.

Start with a valid SDI source connection. This is indicated by the blue box displaying “ENCODING” and a moving bitrate graph in the header.

Sign in to Twitch and click on your username. Then click on Dashboard.

In the new window that opens up click on the Settings link on the left. Click on the Stream Key link.

Click on Show Key to open the modal.

Click I Understand to see your key. It’s important not to share it, otherwise you are exposed to someone hijacking your channel.

On the user interface go to the Encode Outputs tab and select RTMP (Client) from one of the Protocol dropdowns.

In the  URL field follow this format: rtmp://live.twitch.tv/app/<stream key>
Use the Key you got from Twitch. Then click Apply.

The Encode path will be visible on the Status tab and a blinking box will appear in the header.

Back on your Twitch Dashboard Page go to the Live link in the menu and the video from the T9261-E should be playing.

To stop the stream, select Off from the Protocol list on the T21 device and click Apply. The video on your Twitch channel should change to Offline.

Download here the HLS Scrubber Tutorial in PDF format.

  • After opening the Scrubber, connect to the T21 decoder using its UI credentials.
  • In another tab, open Twitch.tv and navigate to the desired livestream.
    • The Scrubber will only gather HLS manifests.
  • Available manifest URLs will appear on the Scrubber webpage.
  • Click the blue send button next to the URL to begin playing the stream on your T21 decoder.

Explanations

  1. The blue i opens up a modal with instructions on how to use the chrome app.
  2. Form to enter the T21 decoder’s credentials.
    • Can use either the domain name or the IP address.
  3. List of manifests the scrubber found. Every livestream you open will result in the manifest populating in the Scrubber webpage.
  4. Opens the Settings. Set Scrubber behavior with available options.
  5. Manifests found by the scrubber.
  6. Clear Log.