JED Micro
Designers and manufacturers of audio/visual and industrial controllers in Australia

T460R: A/V controller family with OLED display

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T460R with metallic finish

T460R with beige finish

T460R with classic blue finish

The T460R is an update of the T460 A/V controller which has been in production for over 10 years.

The text display now uses a yellow OLED (Organic Light-Emitting Diode) two-line display.

The update also adds four (optional) N-FET "Relay" outputs to directly drive screens, "dippers" and dimmers, and an extra logic input for alarms or security.

A new Tiger CPU (called "Tiger PLUS") is now in pre-production and a new blue version of the T460 printed circuit board supports this different CPU. They are very similar mechanically, but are NOT plug-in interchangeable (the new CPU runs on 3.3 rather than 5 volts, and there are other component changes to 3.3 volt compatible parts to accomodate this. In operation, they are virtually identical, and the software is now produced with two binary files, a ".tgu" file for the older ENN device, and a ".tpu" file for the new device. One bonus with the newer CPU is that download time is greatly reduced and the reprogramming takes place at 115,200 baud rather than at 38,400 baud.

A new downloader program version is now available which supports both Tigers. It must be told which Tiger is to be used. Warning: there have been reports that some anti-virus software thinks this downloader is a virus ... the anti-virus software should be temporarily disabled if this happens.

Features of the T460R:

Text display: The T460R is unique among low-cost A/V controllers in that is has a 2-line by 12 character text display to provide range of useful feedback and data to operators. (Most other low-end controllers have just LED indicators, such as JED's low-cost T430 and T440 family does.)

This shows:

  • System status: Standby, Warm-up, Running, Cooling down;

  • Lamp and Filter running hours used;

  • Current channel, from eight available, identified by exact name (customisable);

  • Audio volume shown numerically, commanded, or read back from the display, (useful when display device does NOT display it on the screen);

  • Communications status: "Projector not replying" or "Projector Coms OK" messages;

  • Aspect ratio settings and messages by name: 16:9, 4:3 etc;

  • Screen control settings and messages;

  • Mute and Freeze setting control and status display;

  • Provides 18 convenient interactive menus during setup,so field settings can be done without needing complicated laptop software. Users can enter custom values for warm-up and cool-down times, auto-close-down and relay times for screen dropping and raising;

  • Alphanumeric display allows choosing display device by maker and exact model number, retrieving the appropriate command profile; and

  • Internal HEX editor on the screen allows custom loading of serial codes for ancillary devices (LCD screen, Kramer scaler-switcher), or various audio devices into nonvolatile memory. As of rev 3.55, user serial strings for either serial port (i.e. for display device or ancillary devices) can be loaded and examined via a PC utility. Also, user loaded strings can be used to substitute for preset strings (e.g. to set interactive commands) or added as extra commands after main source strings, e.g. to give selective "blend" by channels, etc.

Simple keyboard: Four keys provide all functions, as the ON key doubles as the source-select key, rolling sources through the eight available. A "video/audio mute" is provided by pressing both volume keys together. Aspect ratio, screen control, and microphone level control are provided by dummy channels that can be selected momentarily in Run mode. (Other keyboards support Freeze/Mute and Mute On/Off options.)

Keyboard Options for the T460R:

Three different functional keyboards are provided for the T460R:

Volume keyboards: These keyboards all have Off, On/Source, Volume Up and Volume Down keys. They differ in the background colour of the keyboard. these keyboards are shown in the above photos, and have a metallic finish, a beige finish or a blue finish;


T460R freeze/Mute
T460R Mute On/Off
T460R Freeze/Mute
T460R Mute On/Off


Freeze-Mute keyboard: Used for sites which do not need audio control via the controller. Typical applications might be in a church or worship centre, where an audio mixer desk is used for the audio control, and the JED controller now provides keys for "Freeze On/Off" and "Mute On/Off" functions. (Only available with a blue background, but can be mounted on a white or black base; and

Mute-On/Mute-Off keyboard: Used for where no audio control is needed, but the projector does NOT support the "Freeze" function.

System connections for the T460R

T440 demo #1
T440 Demo 2



I/O connectors for the T460R

Serial port 1 (J6, RS232): Serial port one drives the main display device, with Tx and Rx lines (and an optional CTS line). The Rx input receives and processes data from the display device, such as On/ Off status, volume, lamp and filter hours, error states, alarms and internal temperatures (which can be reported via the networking option.) (Right-most lower connector.)

Serial port 2 (J4, RS232): drives ancillary devices, such as the JED T461 four-channel switcher/mixer, and the JED T464 networking adapter. (Second-right-most connector.)

The T461 changes audio channels in step with the video channels, and provides absolute volume control for four stereo pairs to a stereo line out. (The T461 is covered on the "audio products" page.) See:T461

The JED T464 is a network adaptor which connects a room controlled by a T460R into a software package running on a tech centre PC, monitoring the room A/V remotely. (The T464 is covered on the "JED ancillary devices" page: T464.)

The JED T462 relay box can also be driven from this port, providing additional relays (which are isolated from the common ground. (The T462 is covered on the "JED ancillary devices" page.) See: JED ancillary devices" page:T462

Additional display drive: This second serial port can also be used to drive additional equipment such as other projectors, flat panels running in parallel with the main display device. (A good example of this is an installation in a church where a high-power projector provides the main congregational display, and an ancillary LCD panel is provided for a choir or overflow room. The T460R commands both devices with appropriate control commands on separate RS232 ports … no port sharing is necessary.)

External switcher drive: Another application of the second RS232 serial port is to drive a Kramer (or similar) scaler/switcher. In this application with a single display device commanded from Serial Port One, the Kramer is commanded from Serial Port Two. All video scaling and switching occurs in the Kramer, and the display device has a constant channel selection to accept the output of the Kramer for all T460R channels. (A re-mapping menu provides this setup.)

The T460R serial ports are full +/- RS232 levels, not just 0-5 volts as some other controllers only provide.

Serial Port 3 (J3, RS485): This can drive RS485-specific devices (such as the IN400 audio processor), but its main function is to link two T460R units together in a "Master/Slave" configuration. (A hall or theatre can have a slave T460R by the stage and the master in the A/V control room.) (Centre connector.)

PIR Input: This input adds a powerful feature to the T460R … it allows a Passive Infra Red detector to be connected to the unit. This senses the presence of students in a classroom, and this is used to control an internal timer. This timer starts when the display device is turned ON and if there is no user keyboard entry (e.g. to set a source or turn it OFF manually), will turn off the display after a programmable period of time, (e.g. one hour) … UNLESS the PIR detects people in the room (which restarts the counter via this PIR input.) Thus the display device will not be left ON overnight, over the weekend or over the holidays. (A suitable PIR device is covered on the "ancillary devices" page.) (The PIR and the GeneralPurpose input share the three-pin connector, lower left.) See:PIR

General Purpose Input: This new input on the T460R is used for connection to security or RFID readers, or keypads, external Timer inputs or Fire Alarm wiring, (which can force an audio mute on alarm.) Timer inputs are used in exhibitions, museums or galleries to turn displays on during 9/5.

Relay Outputs: This addition (option "–R4") to the T460R allows the controller to control screen, dipper and room light dimming directly, without needing an external relay box (like the T461/2). The connections are to a new 5-pin Phoenix connector located vertically near the top edge of the back. Outputs are N-channel FETs with a 60–volt rating and built-in Zener clamping to catch inductive load spikes. The FETs use Ground as the common … this suits inputs of screen controllers from most makers (the N-FET looks like a relay contact or push-button to Ground). Note: This is an option, and must be specically ordered.

Note: This is NOT suitable for the most recent Somfy screen controller (anemeo IB+ 1AC) as this uses a common raised to plus 13.7 volts. The older CD4 controller from Somfy does use a ground-referenced common, and is fine with this N-FET drive. If using an "animeo" controller, the T462-R2 still provides an isolated mechanical relay interface. A mixture of on-board N-FET outputs and serial-controlled ones in a T461/2 can be used … relays can also be used for external channel switching. (Top-left 5-pin connector)

Using the T460R with a T447

T447 to T440The use of the T447 allows very simple wiring of the T460R A/V control environment: a single CAT5 cable is all that is needed through the wall to the T460R at the operators location. A T447 box is installed up by the projector, and a single CAT5 Type A cable (non-crossover) interconnects the two units. A pre-terminated end plugs into the T447 and the individual wires are screwed into the T460R Phoenix connectors as per the drawing. See Ancillary Devices:T477 and T447 user notes.

Then, up at the T447, 12 volt power in, a D9 serial connector to the projector via an included patch cable and the PIR connections are all connected via the CAT5 cable to the controller.

The T447 also provides Tx and Rx line LED monitors with pulse stretchers so that signal communications in both directions with the display are shown to installers.

Software for the T460R

All JED controllers can be field-upgraded from a lap-top or computer via a serial port, or via a USB to serial converter, to include new device drivers and data-base via a serial cable. Software to do this can be downloaded from a link on the top left of this page, as a windows application. The latest software release (a TGU file) can also be downloaded from this page (see left column).

Each released version of the software includes all projectors (or flat panels) currently supported, usually about 2000 devices. (The "Included projectors" file lists supported devices.) Updating the driver and data-base does not change the setup information ... this setup is stored in a separate nonvolatile memory which is not altered by a re-load. Separately, by entering a special PIN number, a factory reset of all 512 setup constants can be done. (Contact JED for details).

Cloning setup: The setup of the 512 constant locations mentioned above can be copied from one T460R to a second (or more) T460R units by using a simple cross-over three-wire cable interconnecting both first serial ports. In the setup menu is one entry for sending the 512 bytes and another for receiving the data and saving it in the nonvolatile memory. (The run-time code and the data-base can only be updated via an external PC via the "downloader"... cloning is for setup only)

Other T460R details

Power supply: Power input is rated for 8 to 20 volts … we recommend a 12v regulated power pack. Current consumption is under 50mA at 12v. (A T461 audio mixer can also supply this. (A suitable plug pack power supply, sold separately, the PAK12-1A is covered on the "ancillary devices" page.)

Mechanical: The T460R is 117 by 76mm, and uses Australian/NZ standard Clipsal 2000 mountings.


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For JED audio devices, see: JED audio products

For JED audio devices, see: JED ancillary devices